* RTL8192CU continually reconnecting
@ 2013-09-08 11:53 Timothy Rundle
2013-09-08 23:16 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Timothy Rundle @ 2013-09-08 11:53 UTC (permalink / raw)
To: linux-wireless
My TL-WN821N with a RTL8192CU chipsets fails to stay connected. It
appears to be disconnecting every 5-10 seconds. Since the issue
happens with the mainline kernel, the downstream maintainer ask me to
post here. Here is a section of my kernel log:
Sep 6 22:37:34 james kernel: [ 247.725230] wlan1: Connection to AP
00:0f:b3:a4:6c:5f lost
Sep 6 22:37:34 james kernel: [ 247.764266] cfg80211: Calling CRDA to
update world regulatory domain
Sep 6 22:37:34 james kernel: [ 247.770264] cfg80211: World
regulatory domain updated:
Sep 6 22:37:34 james kernel: [ 247.770269] cfg80211: (start_freq -
end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep 6 22:37:34 james kernel: [ 247.770272] cfg80211: (2402000 KHz
- 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 6 22:37:34 james kernel: [ 247.770275] cfg80211: (2457000 KHz
- 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 6 22:37:34 james kernel: [ 247.770277] cfg80211: (2474000 KHz
- 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 6 22:37:34 james kernel: [ 247.770279] cfg80211: (5170000 KHz
- 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 6 22:37:34 james kernel: [ 247.770281] cfg80211: (5735000 KHz
- 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 6 22:37:34 james kernel: [ 247.861375] wlan1: authenticate with
00:0f:b3:a4:6c:5f
Sep 6 22:37:34 james kernel: [ 247.862182] wlan1: send auth to
00:0f:b3:a4:6c:5f (try 1/3)
Sep 6 22:37:35 james kernel: [ 247.964206] wlan1: send auth to
00:0f:b3:a4:6c:5f (try 2/3)
Sep 6 22:37:35 james kernel: [ 248.068278] wlan1: send auth to
00:0f:b3:a4:6c:5f (try 3/3)
Sep 6 22:37:35 james kernel: [ 248.172349] wlan1: authentication
with 00:0f:b3:a4:6c:5f timed out
Sep 6 22:37:41 james kernel: [ 254.020841] wlan1: authenticate with
00:0f:b3:a4:6c:5f
Sep 6 22:37:41 james kernel: [ 254.022301] wlan1: send auth to
00:0f:b3:a4:6c:5f (try 1/3)
Sep 6 22:37:41 james kernel: [ 254.024112] wlan1: authenticated
Sep 6 22:37:41 james kernel: [ 254.024415] rtl8192cu 1-4:1.0 wlan1:
disabling HT/VHT due to WEP/TKIP use
Sep 6 22:37:41 james kernel: [ 254.024426] rtl8192cu 1-4:1.0 wlan1:
disabling HT as WMM/QoS is not supported by the AP
Sep 6 22:37:41 james kernel: [ 254.024433] rtl8192cu 1-4:1.0 wlan1:
disabling VHT as WMM/QoS is not supported by the AP
Sep 6 22:37:41 james kernel: [ 254.028075] wlan1: associate with
00:0f:b3:a4:6c:5f (try 1/3)
Sep 6 22:37:41 james kernel: [ 254.036872] wlan1: RX AssocResp from
00:0f:b3:a4:6c:5f (capab=0x471 status=0 aid=4)
Sep 6 22:37:41 james kernel: [ 254.036943] wlan1: associated
Sep 6 22:37:48 james kernel: [ 261.758279] wlan1: Connection to AP
00:0f:b3:a4:6c:5f lost
My configuration information is listed below. Additional logs and
configuration can be found at the downstream bug report [A]. The issue
appears to be similar to one already reported on the mailing list [B].
[A] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1220007
[B] http://www.spinics.net/lists/linux-wireless/msg111529.html
Keywords: networking, wireless, usb, RTL8192CU, realtek, TL-WN821N
timothy@james:~$ cat /proc/version
Linux version 3.11.0-999-generic (apw@gomeisa) (gcc version 4.6.3
(Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201309060427 SMP Fri Sep 6 08:28:59
UTC 2013
No Kernel oops
N/A
timothy@james:~$ lsb_release -rd
Description: Ubuntu Saucy Salamander (development branch)
Release: 13.10
timothy@james:/usr/src/linux-headers-3.11.0-999-generic/scripts$ sh ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux james 3.11.0-999-generic #201309060427 SMP Fri Sep 6 08:28:59
UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Gnu C 4.8
Gnu make 3.81
binutils 2.23.52.20130828
util-linux 2.20.1
mount support
module-init-tools 9
e2fsprogs 1.42.8
pcmciautils 018
PPP 2.4.5
Linux C Library 2.17
Dynamic linker (ldd) 2.17
Procps 3.3.3
Net-tools 1.60
Kbd 1.15.5
Sh-utils 8.20
wireless-tools 30
Modules Loaded nls_utf8 isofs autofs4 parport_pc ppdev lp
parport rfcomm bnep bluetooth nfsd auth_rpcgss nfs_acl nfs lockd
sunrpc fscache arc4 rtl8192cu rtl_usb rtlwifi rtl8192c_common mac80211
cfg80211 hid_generic uvcvideo usbhid videobuf2_vmalloc usb_storage
videobuf2_memops hid videobuf2_core snd_usb_audio videodev
snd_usbmidi_lib radeon snd_hda_codec_hdmi snd_hda_codec_via
snd_hda_intel kvm snd_hda_codec snd_hwdep snd_pcm snd_page_alloc
snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device
snd_timer ttm drm_kms_helper psmouse microcode snd drm sp5100_tco
edac_core serio_raw edac_mce_amd soundcore i2c_algo_bit i2c_piix4
k10temp asus_atk0110 mac_hid ohci_pci pata_acpi ahci r8169 pata_atiixp
libahci mii
timothy@james:~$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 945 Processor
stepping : 3
microcode : 0x10000c8
cpu MHz : 800.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl
nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm
extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit
wdt hw_pstate npt lbrv svm_lock nrip_save
bogomips : 6029.94
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
processor : 1
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 945 Processor
stepping : 3
microcode : 0x10000c8
cpu MHz : 800.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl
nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm
extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit
wdt hw_pstate npt lbrv svm_lock nrip_save
bogomips : 6029.94
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
processor : 2
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 945 Processor
stepping : 3
microcode : 0x10000c8
cpu MHz : 800.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl
nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm
extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit
wdt hw_pstate npt lbrv svm_lock nrip_save
bogomips : 6029.94
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
processor : 3
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 945 Processor
stepping : 3
microcode : 0x10000c8
cpu MHz : 800.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl
nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm
extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit
wdt hw_pstate npt lbrv svm_lock nrip_save
bogomips : 6029.94
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
timothy@james:~$ cat /proc/modules
nls_utf8 12557 1 - Live 0x0000000000000000
isofs 40272 1 - Live 0x0000000000000000
autofs4 39166 1 - Live 0x0000000000000000
parport_pc 32866 0 - Live 0x0000000000000000
ppdev 17711 0 - Live 0x0000000000000000
lp 17799 0 - Live 0x0000000000000000
parport 42481 3 parport_pc,ppdev,lp, Live 0x0000000000000000
rfcomm 74658 0 - Live 0x0000000000000000
bnep 23966 2 - Live 0x0000000000000000
bluetooth 391597 10 rfcomm,bnep, Live 0x0000000000000000
nfsd 283232 2 - Live 0x0000000000000000
auth_rpcgss 59255 1 nfsd, Live 0x0000000000000000
nfs_acl 12883 1 nfsd, Live 0x0000000000000000
nfs 183238 0 - Live 0x0000000000000000
lockd 94791 2 nfsd,nfs, Live 0x0000000000000000
sunrpc 273894 6 nfsd,auth_rpcgss,nfs_acl,nfs,lockd, Live 0x0000000000000000
fscache 54777 1 nfs, Live 0x0000000000000000
arc4 12573 2 - Live 0x0000000000000000
rtl8192cu 72806 0 - Live 0x0000000000000000
rtl_usb 18713 1 rtl8192cu, Live 0x0000000000000000
rtlwifi 64035 2 rtl8192cu,rtl_usb, Live 0x0000000000000000
rtl8192c_common 53827 1 rtl8192cu, Live 0x0000000000000000
mac80211 634607 3 rtl8192cu,rtl_usb,rtlwifi, Live 0x0000000000000000
cfg80211 504229 2 rtlwifi,mac80211, Live 0x0000000000000000
hid_generic 12548 0 - Live 0x0000000000000000
uvcvideo 82247 0 - Live 0x0000000000000000
usbhid 53378 0 - Live 0x0000000000000000
videobuf2_vmalloc 13216 1 uvcvideo, Live 0x0000000000000000
usb_storage 66714 0 - Live 0x0000000000000000
videobuf2_memops 13362 1 videobuf2_vmalloc, Live 0x0000000000000000
hid 105676 2 hid_generic,usbhid, Live 0x0000000000000000
videobuf2_core 40903 1 uvcvideo, Live 0x0000000000000000
snd_usb_audio 155972 1 - Live 0x0000000000000000
videodev 139144 2 uvcvideo,videobuf2_core, Live 0x0000000000000000
snd_usbmidi_lib 29576 1 snd_usb_audio, Live 0x0000000000000000
radeon 1518839 6 - Live 0x0000000000000000
snd_hda_codec_hdmi 41736 1 - Live 0x0000000000000000
snd_hda_codec_via 32006 1 - Live 0x0000000000000000
snd_hda_intel 57183 7 - Live 0x0000000000000000
kvm 457632 0 - Live 0x0000000000000000
snd_hda_codec 194881 3
snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel, Live
0x0000000000000000
snd_hwdep 13613 2 snd_usb_audio,snd_hda_codec, Live 0x0000000000000000
snd_pcm 107140 5
snd_usb_audio,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec, Live
0x0000000000000000
snd_page_alloc 18798 2 snd_hda_intel,snd_pcm, Live 0x0000000000000000
snd_seq_midi 13324 0 - Live 0x0000000000000000
snd_seq_midi_event 14899 1 snd_seq_midi, Live 0x0000000000000000
snd_rawmidi 30465 2 snd_usbmidi_lib,snd_seq_midi, Live 0x0000000000000000
snd_seq 66061 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
snd_seq_device 14497 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000
snd_timer 30038 2 snd_pcm,snd_seq, Live 0x0000000000000000
ttm 84599 1 radeon, Live 0x0000000000000000
drm_kms_helper 53165 1 radeon, Live 0x0000000000000000
psmouse 104113 0 - Live 0x0000000000000000
microcode 23650 0 - Live 0x0000000000000000
snd 73802 28 snd_usb_audio,snd_usbmidi_lib,snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq_midi,snd_rawmidi,snd_seq,snd_seq_device,snd_timer,
Live 0x0000000000000000
drm 303157 8 radeon,ttm,drm_kms_helper, Live 0x0000000000000000
sp5100_tco 14114 0 - Live 0x0000000000000000
edac_core 62914 0 - Live 0x0000000000000000
serio_raw 13462 0 - Live 0x0000000000000000
edac_mce_amd 22792 0 - Live 0x0000000000000000
soundcore 12680 1 snd, Live 0x0000000000000000
i2c_algo_bit 13564 1 radeon, Live 0x0000000000000000
i2c_piix4 22299 0 - Live 0x0000000000000000
k10temp 13173 0 - Live 0x0000000000000000
asus_atk0110 19210 0 - Live 0x0000000000000000
mac_hid 13253 0 - Live 0x0000000000000000
ohci_pci 13561 0 - Live 0x0000000000000000
pata_acpi 13038 0 - Live 0x0000000000000000
ahci 30063 3 - Live 0x0000000000000000
r8169 73111 0 - Live 0x0000000000000000
pata_atiixp 13242 1 - Live 0x0000000000000000
libahci 32088 1 ahci, Live 0x0000000000000000
mii 13981 1 r8169, Live 0x0000000000000000
timothy@james:~$ cat /proc/ioports
0000-0cf7 : PCI Bus 0000:00
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-0060 : keyboard
0064-0064 : keyboard
0070-0071 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : 0000:00:14.1
0170-0177 : pata_atiixp
01f0-01f7 : 0000:00:14.1
01f0-01f7 : pata_atiixp
0230-023f : pnp 00:08
0290-029f : pnp 00:08
0300-030f : pnp 00:08
0376-0376 : 0000:00:14.1
0376-0376 : pata_atiixp
03c0-03df : vga+
03f6-03f6 : 0000:00:14.1
03f6-03f6 : pata_atiixp
040b-040b : pnp 00:07
04d0-04d1 : pnp 00:07
04d6-04d6 : pnp 00:07
0800-0803 : ACPI PM1a_EVT_BLK
0804-0805 : ACPI PM1a_CNT_BLK
0808-080b : ACPI PM_TMR
0810-0815 : ACPI CPU throttle
0820-0827 : ACPI GPE0_BLK
08ff-08ff : ACPI PM2_CNT_BLK
0900-090f : pnp 00:07
0910-091f : pnp 00:07
0a30-0a3f : pnp 00:08
0b00-0b3f : pnp 00:07
0b00-0b07 : piix4_smbus
0b20-0b2f : pnp 00:07
0b20-0b27 : piix4_smbus
0c00-0c01 : pnp 00:07
0c14-0c14 : pnp 00:07
0c50-0c51 : pnp 00:07
0c52-0c52 : pnp 00:07
0c6c-0c6c : pnp 00:07
0c6f-0c6f : pnp 00:07
0cd0-0cd1 : pnp 00:07
0cd2-0cd3 : pnp 00:07
0cd4-0cd5 : pnp 00:07
0cd6-0cd7 : pnp 00:07
0cd8-0cdf : pnp 00:07
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
8000-800f : 0000:00:11.0
8000-800f : ahci
9000-9003 : 0000:00:11.0
9000-9003 : ahci
a000-a007 : 0000:00:11.0
a000-a007 : ahci
b000-b003 : 0000:00:11.0
b000-b003 : ahci
c000-c007 : 0000:00:11.0
c000-c007 : ahci
d000-dfff : PCI Bus 0000:01
d000-d0ff : 0000:01:00.0
e000-efff : PCI Bus 0000:02
e800-e8ff : 0000:02:00.0
e800-e8ff : r8169
fe00-fefe : pnp 00:07
ff00-ff0f : 0000:00:14.1
ff00-ff0f : pata_atiixp
timothy@james:~$ cat /proc/iomem
00000000-00000fff : reserved
00001000-0009ebff : System RAM
0009ec00-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000cf3ff : Video ROM
000d0000-000dffff : PCI Bus 0000:00
000e4000-000fffff : reserved
000f0000-000fffff : System ROM
00100000-cff7ffff : System RAM
01000000-01753583 : Kernel code
01753584-01d1807f : Kernel data
01e70000-01fe2fff : Kernel bss
c4000000-c7ffffff : GART
cff80000-cff8dfff : ACPI Tables
cff8e000-cffcffff : ACPI Non-volatile Storage
cffd0000-cfffffff : reserved
d0000000-dfffffff : PCI Bus 0000:00
d0000000-dfffffff : PCI Bus 0000:01
d0000000-dfffffff : 0000:01:00.0
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
e0000000-efffffff : pnp 00:09
f0000000-fed44fff : PCI Bus 0000:00
faf00000-faffffff : PCI Bus 0000:02
faff0000-faffffff : 0000:02:00.0
faff0000-faffffff : r8169
fbdf4000-fbdf7fff : 0000:00:14.2
fbdf4000-fbdf7fff : ICH HD audio
fbdf9000-fbdf9fff : 0000:00:14.5
fbdf9000-fbdf9fff : ohci_hcd
fbdfa800-fbdfa8ff : 0000:00:13.2
fbdfa800-fbdfa8ff : ehci_hcd
fbdfb000-fbdfbfff : 0000:00:13.1
fbdfb000-fbdfbfff : ohci_hcd
fbdfc000-fbdfcfff : 0000:00:13.0
fbdfc000-fbdfcfff : ohci_hcd
fbdfd000-fbdfdfff : 0000:00:12.1
fbdfd000-fbdfdfff : ohci_hcd
fbdfe000-fbdfefff : 0000:00:12.0
fbdfe000-fbdfefff : ohci_hcd
fbdff000-fbdff0ff : 0000:00:12.2
fbdff000-fbdff0ff : ehci_hcd
fbdff800-fbdffbff : 0000:00:11.0
fbdff800-fbdffbff : ahci
fbe00000-fbefffff : PCI Bus 0000:01
fbec0000-fbedffff : 0000:01:00.0
fbeec000-fbeeffff : 0000:01:00.1
fbeec000-fbeeffff : ICH HD audio
fbef0000-fbefffff : 0000:01:00.0
fbf00000-fbffffff : PCI Bus 0000:02
fbfc0000-fbfdffff : 0000:02:00.0
fbfff000-fbffffff : 0000:02:00.0
fbfff000-fbffffff : r8169
fec00000-fec003ff : IOAPIC 0
fec10000-fec1001f : pnp 00:07
fed00000-fed003ff : HPET 2
fed40000-fed44fff : pnp 00:07
fee00000-fee00fff : Local APIC
fee00000-fee00fff : pnp 00:06
ff700000-ffffffff : reserved
ffb80000-ffbfffff : pnp 00:07
100000000-12fffffff : System RAM
sudo lspci -vvv
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] RS780 Host Bridge
Subsystem: ASUSTeK Computer Inc. Device 82ee
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: [c4] HyperTransport: Slave or Primary Interface
Command: BaseUnitID=0 UnitCnt=12 MastHost- DefDir- DUL-
Link Control 0: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0
IsocEn+ LSEn- ExtCTL- 64b-
Link Config 0: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-
Link Control 1: CFlE- CST- CFE- <LkFail+ Init- EOC+ TXO+ <CRCErr=0
IsocEn- LSEn- ExtCTL- 64b-
Link Config 1: MLWI=8bit DwFcIn- MLWO=8bit DwFcOut- LWI=8bit DwFcInEn-
LWO=8bit DwFcOutEn-
Revision ID: 3.00
Link Frequency 0: [b]
Link Error 0: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability 0: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC- LDTSTOP+ CRCTM- ECTLT- 64bA- UIDRD-
Link Frequency 1: 200MHz
Link Error 1: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability 1: 200MHz- 300MHz- 400MHz- 500MHz- 600MHz-
800MHz- 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Error Handling: PFlE- OFlE- PFE- OFE- EOCFE- RFE- CRCFE- SERRFE- CF-
RE- PNFE- ONFE- EOCNFE- RNFE- CRCNFE- SERRNFE-
Prefetchable memory behind bridge Upper: 00-00
Bus Number: 00
Capabilities: [54] HyperTransport: UnitID Clumping
Capabilities: [40] HyperTransport: Retry Mode
Capabilities: [9c] HyperTransport: #1a
Capabilities: [f8] HyperTransport: #1c
00:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780 PCI to
PCI bridge (ext gfx port 0) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fbe00000-fbefffff
Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity+ SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag+ RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep+ BwNot+
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive+
BWMgmt+ ABWMgmt+
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #2, PowerLimit 75.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
Selectable De-emphasis: -3.5dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-,
EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0f00c Data: 4181
Capabilities: [b0] Subsystem: ASUSTeK Computer Inc. Device 82ee
Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities: [110 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Kernel driver in use: pcieport
00:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780 PCI to
PCI bridge (PCIE port 2) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: fbf00000-fbffffff
Prefetchable memory behind bridge: 00000000faf00000-00000000faffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag+ RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #3, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep+ BwNot+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+
BWMgmt+ ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #6, PowerLimit 25.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
Selectable De-emphasis: -3.5dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-,
EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0f00c Data: 4191
Capabilities: [b0] Subsystem: ASUSTeK Computer Inc. Device 82ee
Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities: [110 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Kernel driver in use: pcieport
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode] (prog-if 01 [AHCI 1.0])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 22
Region 0: I/O ports at c000 [size=8]
Region 1: I/O ports at b000 [size=4]
Region 2: I/O ports at a000 [size=8]
Region 3: I/O ports at 9000 [size=4]
Region 4: I/O ports at 8000 [size=16]
Region 5: Memory at fbdff800 (32-bit, non-prefetchable) [size=1K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [70] SATA HBA v1.0 InCfgSpace
Kernel driver in use: ahci
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fbdfe000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
00:12.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0
USB OHCI1 Controller (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fbdfd000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 17
Region 0: Memory at fbdff000 (32-bit, non-prefetchable) [size=256]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Bridge: PM- B3+
Capabilities: [e4] Debug port: BAR=1 offset=00e0
Kernel driver in use: ehci-pci
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at fbdfc000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0
USB OHCI1 Controller (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at fbdfb000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 19
Region 0: Memory at fbdfa800 (32-bit, non-prefetchable) [size=256]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Bridge: PM- B3+
Capabilities: [e4] Debug port: BAR=1 offset=00e0
Kernel driver in use: ehci-pci
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus
Controller (rev 3a)
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort+ <MAbort- >SERR- <PERR- INTx-
Capabilities: [b0] HyperTransport: MSI Mapping Enable- Fixed+
Kernel driver in use: piix4_smbus
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 IDE Controller (prog-if 8a [Master SecP PriP])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Interrupt: pin A routed to IRQ 16
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at ff00 [size=16]
Capabilities: [70] MSI: Enable- Count=1/2 Maskable- 64bit-
Address: 00000000 Data: 0000
Kernel driver in use: pata_atiixp
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00
Azalia (Intel HDA)
Subsystem: ASUSTeK Computer Inc. Device 82ea
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fbdf4000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: snd_hda_intel
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 LPC host controller
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI
to PCI Bridge (prog-if 01 [Subtractive decode])
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Bus: primary=00, secondary=03, subordinate=03, sec-latency=64
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: fff00000-000fffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB OHCI2 Controller (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 64 bytes
Interrupt: pin C routed to IRQ 18
Region 0: Memory at fbdf9000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor HyperTransport Configuration
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Capabilities: [80] HyperTransport: Host or Secondary Interface
Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave- <EOCErr- DUL-
Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0
IsocEn+ LSEn+ ExtCTL- 64b-
Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-
Revision ID: 3.00
Link Frequency: [b]
Link Error: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz+ 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS- UCnfE-
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor Address Map
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor DRAM Controller
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor Miscellaneous Control
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Capabilities: [f0] Secure device <?>
Kernel driver in use: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor Link Control
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] RV710 [Radeon HD 4350/4550] (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. R4350 MD512H (MS-V161)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 44
Region 0: Memory at d0000000 (64-bit, prefetchable) [size=256M]
Region 2: Memory at fbef0000 (64-bit, non-prefetchable) [size=64K]
Region 4: I/O ports at d000 [size=256]
Expansion ROM at fbec0000 [disabled] [size=128K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-,
EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0f00c Data: 41d1
Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Kernel driver in use: radeon
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] RV710/730
HDMI Audio [Radeon HD 4000 series]
Subsystem: Micro-Star International Co., Ltd. Device aa38
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 43
Region 0: Memory at fbeec000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-,
Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-,
EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0f00c Data: 41c1
Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Kernel driver in use: snd_hda_intel
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02)
Subsystem: ASUSTeK Computer Inc. M3A78-EH Motherboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 42
Region 0: I/O ports at e800 [size=256]
Region 2: Memory at fbfff000 (64-bit, non-prefetchable) [size=4K]
Region 4: Memory at faff0000 (64-bit, prefetchable) [size=64K]
Expansion ROM at fbfc0000 [disabled] [size=128K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0f00c Data: 41a1
Capabilities: [70] Express (v1) Endpoint, MSI 01
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <8us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 4096 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0
<512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
Capabilities: [b0] MSI-X: Enable- Count=2 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00000800
Capabilities: [d0] Vital Product Data
Unknown small resource type 05, will not decode more.
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr+ BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 00-00-00-00-ec-10-68-81
Kernel driver in use: r8169
timothy@james:~$ cat /proc/scsi/scsi
Attached devices:
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: HL-DT-ST Model: DVDRAM GH22NS50 Rev: TN02
Type: CD-ROM ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: WDC WD5000AAKS-0 Rev: 05.0
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi6 Channel: 00 Id: 00 Lun: 00
Vendor: Generic Model: USB SD Reader Rev: 1.00
Type: Direct-Access ANSI SCSI revision: 00
Host: scsi6 Channel: 00 Id: 00 Lun: 01
Vendor: Generic Model: USB CF Reader Rev: 1.01
Type: Direct-Access ANSI SCSI revision: 00
Host: scsi6 Channel: 00 Id: 00 Lun: 02
Vendor: Generic Model: USB xD/SM Reader Rev: 1.02
Type: Direct-Access ANSI SCSI revision: 00
Host: scsi6 Channel: 00 Id: 00 Lun: 03
Vendor: Generic Model: USB MS Reader Rev: 1.03
Type: Direct-Access ANSI SCSI revision: 00
[7.7] timothy@james:~$ ls /proc
1 1668 1993 2284 28 397 681 acpi meminfo
10 167 1994 2288 2833 40 693 asound misc
1065 168 1995 2293 2890 403 695 buddyinfo modules
11 17 2 2298 29 41 7 bus mounts
1162 1795 20 23 2904 42 709 cgroups mtrr
1171 1797 2019 2300 294 43 716 cmdline net
1195 18 2023 2305 299 432 72 consoles pagetypeinfo
12 1864 2058 2306 3 433 721 cpuinfo partitions
1202 1866 2076 2312 30 436 738 crypto sched_debug
1207 1888 2078 2321 3002 44 754 devices schedstat
1213 1892 21 2352 3005 45 785 diskstats scsi
1233 19 2102 2387 3007 46 786 dma self
1237 1904 2110 2388 3018 466 788 driver slabinfo
1250 1911 2115 24 31 47 791 execdomains softirqs
13 1912 2118 2445 3195 48 8 fb stat
1301 1917 22 2451 3199 49 810 filesystems swaps
1316 1918 2217 2468 32 493 859 fs sys
1330 1922 2219 2477 3217 5 866 interrupts sysrq-trigger
1379 1926 2220 2487 3223 50 868 iomem sysvipc
14 1930 2221 25 3252 51 892 ioports timer_list
143 1946 2229 2506 3289 52 893 irq timer_stats
145 1948 2231 2511 3298 53 896 kallsyms tty
147 1949 2232 2535 33 54 9 kcore uptime
149 1957 2239 2543 34 545 91 key-users version
15 1977 2240 2544 35 55 914 kmsg vmallocinfo
150 1979 2241 26 361 56 92 kpagecount vmstat
151 1981 2255 2682 368 57 922 kpageflags zoneinfo
152 1985 2259 27 37 6 946 latency_stats
153 1987 2261 2709 38 629 964 loadavg
154 1990 2265 2762 39 630 969 locks
16 1992 228 2775 391 68 970 mdstat
sudo lsusb -vvv
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0001 1.1 root hub
bcdDevice 3.11
iManufacturer 3 Linux 3.11.0-999-generic ohci_hcd
iProduct 2 OHCI PCI host controller
iSerial 1 0000:00:14.5
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 2
wHubCharacteristic 0x0012
No power switching (usb 1.0)
No overcurrent protection
bPwrOn2PwrGood 2 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 002 Device 002: ID 18e3:9102 Fitipower Integrated Technology Inc
Multi Card Reader
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x18e3 Fitipower Integrated Technology Inc
idProduct 0x9102 Multi Card Reader
bcdDevice 1.00
iManufacturer 1 Generic
iProduct 2 Mass Storage Device
iSerial 3 18E3312D81B
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.11
iManufacturer 3 Linux 3.11.0-999-generic ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:13.2
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 6
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0001 1.1 root hub
bcdDevice 3.11
iManufacturer 3 Linux 3.11.0-999-generic ohci_hcd
iProduct 2 OHCI PCI host controller
iSerial 1 0000:00:13.1
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x0012
No power switching (usb 1.0)
No overcurrent protection
bPwrOn2PwrGood 2 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0001 1.1 root hub
bcdDevice 3.11
iManufacturer 3 Linux 3.11.0-999-generic ohci_hcd
iProduct 2 OHCI PCI host controller
iSerial 1 0000:00:13.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x0012
No power switching (usb 1.0)
No overcurrent protection
bPwrOn2PwrGood 2 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 001 Device 005: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU
802.11n WLAN Adapter
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0bda Realtek Semiconductor Corp.
idProduct 0x8178 RTL8192CU 802.11n WLAN Adapter
bcdDevice 2.00
iManufacturer 1 802.11n
iProduct 2 USB WLAN
iSerial 3 00e04c000001
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 46
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 4
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
Bus 001 Device 002: ID 046d:0808 Logitech, Inc. Webcam C600
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x046d Logitech, Inc.
idProduct 0x0808 Webcam C600
bcdDevice 0.09
iManufacturer 0
iProduct 0
iSerial 2 78AA4F60
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 2561
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 0
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 217
dwClockFrequency 48.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x0004080e
Auto-Exposure Mode
Auto-Exposure Priority
Exposure Time (Absolute)
PanTilt (Absolute)
Privacy
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 2
bSourceID 1
wMaxMultiplier 16384
bControlSize 2
bmControls 0x0000175b
Brightness
Contrast
Saturation
Sharpness
White Balance Temperature
Backlight Compensation
Gain
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x1b
None
NTSC - 525/60
SECAM - 625/50
NTSC - 625/50
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {82066163-7050-ab49-b8cc-b3855e8d221e}
bNumControl 10
bNrPins 1
baSourceID( 0) 2
bControlSize 2
bmControls( 0) 0xff
bmControls( 1) 0x03
iExtension 0
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 13
guidExtensionCode {82066163-7050-ab49-b8cc-b3855e8d221f}
bNumControl 7
bNrPins 1
baSourceID( 0) 2
bControlSize 2
bmControls( 0) 0x6f
bmControls( 1) 0x01
iExtension 0
VideoControl Interface Descriptor:
bLength 28
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 8
guidExtensionCode {82066163-7050-ab49-b8cc-b3855e8d2251}
bNumControl 3
bNrPins 1
baSourceID( 0) 4
bControlSize 3
bmControls( 0) 0x19
bmControls( 1) 0x00
bmControls( 2) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 28
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 10
guidExtensionCode {82066163-7050-ab49-b8cc-b3855e8d2252}
bNumControl 24
bNrPins 1
baSourceID( 0) 4
bControlSize 3
bmControls( 0) 0xff
bmControls( 1) 0xff
bmControls( 2) 0xff
iExtension 0
VideoControl Interface Descriptor:
bLength 28
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 14
guidExtensionCode {b7935ba4-15c7-0245-90f4-532a3b311365}
bNumControl 4
bNrPins 1
baSourceID( 0) 1
bControlSize 3
bmControls( 0) 0x0f
bmControls( 1) 0x00
bmControls( 2) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 28
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 12
guidExtensionCode {82066163-7050-ab49-b8cc-b3855e8d2250}
bNumControl 17
bNrPins 1
baSourceID( 0) 4
bControlSize 3
bmControls( 0) 0xfe
bmControls( 1) 0x7f
bmControls( 2) 0x70
iExtension 0
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 5
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
** UNRECOGNIZED: 20 41 01 0b 82 06 61 63 70 50 ab 49 b8 cc b3
85 5e 8d 22 55 01 01 04 03 01 00 00 00 00 00 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 3
wTotalLength 1852
bEndPointAddress 129
bmInfo 0
bTerminalLink 5
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
bmaControls( 1) 27
bmaControls( 2) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 18
guidFormat
{59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 24576000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 1536000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 2027520
dwMaxBitRate 12165120
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 6144000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 8110080
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 360
dwMinBitRate 18432000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 400
dwMinBitRate 20480000
dwMaxBitRate 122880000
dwMaxVideoFrameBufferSize 512000
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 8
bmCapabilities 0x00
Still image unsupported
wWidth 768
wHeight 480
dwMinBitRate 29491200
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 737280
dwDefaultFrameInterval 400000
bFrameIntervalType 5
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 9
bmCapabilities 0x00
Still image unsupported
wWidth 800
wHeight 456
dwMinBitRate 29184000
dwMaxBitRate 145920000
dwMaxVideoFrameBufferSize 729600
dwDefaultFrameInterval 400000
bFrameIntervalType 5
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 10
bmCapabilities 0x00
Still image unsupported
wWidth 800
wHeight 504
dwMinBitRate 32256000
dwMaxBitRate 161280000
dwMaxVideoFrameBufferSize 806400
dwDefaultFrameInterval 400000
bFrameIntervalType 5
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 11
bmCapabilities 0x00
Still image unsupported
wWidth 800
wHeight 600
dwMinBitRate 38400000
dwMaxBitRate 192000000
dwMaxVideoFrameBufferSize 960000
dwDefaultFrameInterval 400000
bFrameIntervalType 5
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 12
bmCapabilities 0x00
Still image unsupported
wWidth 864
wHeight 480
dwMinBitRate 33177600
dwMaxBitRate 165888000
dwMaxVideoFrameBufferSize 829440
dwDefaultFrameInterval 400000
bFrameIntervalType 5
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 13
bmCapabilities 0x00
Still image unsupported
wWidth 960
wHeight 720
dwMinBitRate 55296000
dwMaxBitRate 165888000
dwMaxVideoFrameBufferSize 1382400
dwDefaultFrameInterval 1000000
bFrameIntervalType 3
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 1000000
dwFrameInterval( 2) 2000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 14
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 720
dwMinBitRate 73728000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 2000000
bFrameIntervalType 2
dwFrameInterval( 0) 1333333
dwFrameInterval( 1) 2000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 15
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 800
dwMinBitRate 81920000
dwMaxBitRate 163840000
dwMaxVideoFrameBufferSize 2048000
dwDefaultFrameInterval 2000000
bFrameIntervalType 2
dwFrameInterval( 0) 1333333
dwFrameInterval( 1) 2000000
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 16
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 904
dwMinBitRate 115712000
dwMaxBitRate 115712000
dwMaxVideoFrameBufferSize 2892800
dwDefaultFrameInterval 2000000
bFrameIntervalType 1
dwFrameInterval( 0) 2000000
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 17
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 1000
dwMinBitRate 128000000
dwMaxBitRate 128000000
dwMaxVideoFrameBufferSize 3200000
dwDefaultFrameInterval 2000000
bFrameIntervalType 1
dwFrameInterval( 0) 2000000
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 18
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 1200
dwMinBitRate 153600000
dwMaxBitRate 153600000
dwMaxVideoFrameBufferSize 3840000
dwDefaultFrameInterval 2000000
bFrameIntervalType 1
dwFrameInterval( 0) 2000000
VideoStreaming Interface Descriptor:
bLength 79
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 18
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 160
wHeight( 1) 120
wWidth( 2) 176
wHeight( 2) 144
wWidth( 3) 320
wHeight( 3) 240
wWidth( 4) 352
wHeight( 4) 288
wWidth( 5) 640
wHeight( 5) 360
wWidth( 6) 640
wHeight( 6) 400
wWidth( 7) 768
wHeight( 7) 480
wWidth( 8) 800
wHeight( 8) 456
wWidth( 9) 800
wHeight( 9) 504
wWidth(10) 800
wHeight(10) 600
wWidth(11) 864
wHeight(11) 480
wWidth(12) 960
wHeight(12) 720
wWidth(13) 1280
wHeight(13) 720
wWidth(14) 1280
wHeight(14) 800
wWidth(15) 1600
wHeight(15) 904
wWidth(16) 1600
wHeight(16) 1000
wWidth(17) 1600
wHeight(17) 1200
bNumCompressionPatterns 18
bCompression( 0) 5
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 2
bNumFrameDescriptors 18
bFlags 1
Fixed-size samples: Yes
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 1 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 24576000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 1536000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 2027520
dwMaxBitRate 12165120
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 6144000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 8110080
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 6
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 360
dwMinBitRate 18432000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 7
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 400
dwMinBitRate 20480000
dwMaxBitRate 122880000
dwMaxVideoFrameBufferSize 512000
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 8
bmCapabilities 0x00
Still image unsupported
wWidth 768
wHeight 480
dwMinBitRate 29491200
dwMaxBitRate 176947200
dwMaxVideoFrameBufferSize 737280
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 9
bmCapabilities 0x00
Still image unsupported
wWidth 800
wHeight 456
dwMinBitRate 29184000
dwMaxBitRate 175104000
dwMaxVideoFrameBufferSize 729600
dwDefaultFrameInterval 666666
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 10
bmCapabilities 0x00
Still image unsupported
wWidth 800
wHeight 504
dwMinBitRate 32256000
dwMaxBitRate 193536000
dwMaxVideoFrameBufferSize 806400
dwDefaultFrameInterval 666666
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 11
bmCapabilities 0x00
Still image unsupported
wWidth 800
wHeight 600
dwMinBitRate 38400000
dwMaxBitRate 230400000
dwMaxVideoFrameBufferSize 960000
dwDefaultFrameInterval 666666
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 12
bmCapabilities 0x00
Still image unsupported
wWidth 864
wHeight 480
dwMinBitRate 33177600
dwMaxBitRate 199065600
dwMaxVideoFrameBufferSize 829440
dwDefaultFrameInterval 666666
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 13
bmCapabilities 0x00
Still image unsupported
wWidth 960
wHeight 720
dwMinBitRate 55296000
dwMaxBitRate 331776000
dwMaxVideoFrameBufferSize 1382400
dwDefaultFrameInterval 1000000
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 14
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 720
dwMinBitRate 73728000
dwMaxBitRate 442368000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 1000000
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 15
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 800
dwMinBitRate 81920000
dwMaxBitRate 409600000
dwMaxVideoFrameBufferSize 2048000
dwDefaultFrameInterval 1000000
bFrameIntervalType 5
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 16
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 904
dwMinBitRate 115712000
dwMaxBitRate 231424000
dwMaxVideoFrameBufferSize 2892800
dwDefaultFrameInterval 1000000
bFrameIntervalType 2
dwFrameInterval( 0) 1000000
dwFrameInterval( 1) 2000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 17
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 1000
dwMinBitRate 128000000
dwMaxBitRate 256000000
dwMaxVideoFrameBufferSize 3200000
dwDefaultFrameInterval 1000000
bFrameIntervalType 2
dwFrameInterval( 0) 1000000
dwFrameInterval( 1) 2000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 18
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 1200
dwMinBitRate 153600000
dwMaxBitRate 307200000
dwMaxVideoFrameBufferSize 3840000
dwDefaultFrameInterval 2000000
bFrameIntervalType 2
dwFrameInterval( 0) 1000000
dwFrameInterval( 1) 2000000
VideoStreaming Interface Descriptor:
bLength 83
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 18
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 160
wHeight( 1) 120
wWidth( 2) 176
wHeight( 2) 144
wWidth( 3) 320
wHeight( 3) 240
wWidth( 4) 352
wHeight( 4) 288
wWidth( 5) 640
wHeight( 5) 360
wWidth( 6) 640
wHeight( 6) 400
wWidth( 7) 768
wHeight( 7) 480
wWidth( 8) 800
wHeight( 8) 456
wWidth( 9) 800
wHeight( 9) 504
wWidth(10) 800
wHeight(10) 600
wWidth(11) 864
wHeight(11) 480
wWidth(12) 960
wHeight(12) 720
wWidth(13) 1280
wHeight(13) 720
wWidth(14) 1280
wHeight(14) 800
wWidth(15) 1600
wHeight(15) 904
wWidth(16) 1600
wHeight(16) 1000
wWidth(17) 1600
wHeight(17) 1200
bNumCompressionPatterns 18
bCompression( 0) 5
bCompression( 1) 10
bCompression( 2) 15
bCompression( 3) 20
bCompression( 4) 25
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00c0 1x 192 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0180 1x 384 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0280 1x 640 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x03b0 1x 944 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 7
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0a80 2x 640 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 8
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b20 2x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 9
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0be0 2x 992 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 10
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1380 3x 896 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 11
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x13fc 3x 1020 bytes
bInterval 1
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 2
bInterfaceCount 2
bFunctionClass 1 Audio
bFunctionSubClass 2 Streaming
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 38
bInCollection 1
baInterfaceNr( 0) 3
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bNrChannels 1
wChannelConfig 0x0000
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 1
bSourceID 5
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 5
bSourceID 1
bControlSize 1
bmaControls( 0) 0x03
Mute Control
Volume Control
bmaControls( 1) 0x00
iFeature 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0044 1x 68 bytes
bInterval 4
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 24000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0064 1x 100 bytes
bInterval 4
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 32000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0084 1x 132 bytes
bInterval 4
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00c4 1x 196 bytes
bInterval 4
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.11
iManufacturer 3 Linux 3.11.0-999-generic ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:12.2
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 6
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0503 highspeed power enable connect
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0001 1.1 root hub
bcdDevice 3.11
iManufacturer 3 Linux 3.11.0-999-generic ohci_hcd
iProduct 2 OHCI PCI host controller
iSerial 1 0000:00:12.1
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x0012
No power switching (usb 1.0)
No overcurrent protection
bPwrOn2PwrGood 2 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 003 Device 003: ID 046d:c040 Logitech, Inc. Corded Tilt-Wheel Mouse
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0xc040 Corded Tilt-Wheel Mouse
bcdDevice 24.30
iManufacturer 1 Logitech
iProduct 2 USB-PS/2 Optical Mouse
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 98mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 59
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0005 1x 5 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
Bus 003 Device 002: ID 046d:c313 Logitech, Inc. Internet 350 Keyboard
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0xc313 Internet 350 Keyboard
bcdDevice 1.01
iManufacturer 1 LITEON Technology
iProduct 2 USB Multimedia Keyboard
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 70mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 65
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 24
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 44
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0001 1.1 root hub
bcdDevice 3.11
iManufacturer 3 Linux 3.11.0-999-generic ohci_hcd
iProduct 2 OHCI PCI host controller
iSerial 1 0000:00:12.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x0012
No power switching (usb 1.0)
No overcurrent protection
bPwrOn2PwrGood 2 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0303 lowspeed power enable connect
Port 3: 0000.0303 lowspeed power enable connect
Device Status: 0x0001
Self Powered
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-08 11:53 RTL8192CU continually reconnecting Timothy Rundle
@ 2013-09-08 23:16 ` Larry Finger
2013-09-09 14:16 ` Mark Cave-Ayland
0 siblings, 1 reply; 27+ messages in thread
From: Larry Finger @ 2013-09-08 23:16 UTC (permalink / raw)
To: Timothy Rundle; +Cc: linux-wireless
[-- Attachment #1: Type: text/plain, Size: 897 bytes --]
On 09/08/2013 06:53 AM, Timothy Rundle wrote:
> My TL-WN821N with a RTL8192CU chipsets fails to stay connected. It
> appears to be disconnecting every 5-10 seconds. Since the issue
> happens with the mainline kernel, the downstream maintainer ask me to
> post here. Here is a section of my kernel log:
This problem has been reported before; however, I cannot duplicate it on my
openSUSE KDE system that controls the wireless using NetworkManager.
When taking another look at the code, I realized that rtl8192cu has duplicated a
routine that is found in rtlwifi. The attached patch implements that change.
Please try it and report back. I don't expect it to do much good as your problem
appears to be a bad interaction with the Ubuntu front-end to wireless.
As I am not a Ubuntu user, please provide a full description of the software
that you use to control your wifi connection.
Larry
[-- Attachment #2: 0001-rtlwifi-rtl8192cu-Convert-driver-to-use-rtl_process_.patch --]
[-- Type: text/x-patch, Size: 7697 bytes --]
>From 007a0e9862a6ee518eaad98a78e9d51dfe6a0ff5 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 8 Sep 2013 13:41:28 -0500
Subject: [PATCH] rtlwifi: rtl8192cu: Convert driver to use
rtl_process_phyinfo()
To: linville@tuxdriver.com
Cc: netdev@vger.kernel.org
Remove routine _rtl92c_process_phyinfo() by using the equivalent routine
in driver rtlwifi.
This change also allows the removal of 5 additional routines from rtl8192cu.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
---
drivers/net/wireless/rtlwifi/rtl8192cu/mac.c | 187 +--------------------------
1 file changed, 2 insertions(+), 185 deletions(-)
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
index da4f587..3936853 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
@@ -32,6 +32,7 @@
#include "../usb.h"
#include "../ps.h"
#include "../cam.h"
+#include "../stats.h"
#include "reg.h"
#include "def.h"
#include "phy.h"
@@ -738,16 +739,6 @@ static u8 _rtl92c_evm_db_to_percentage(char value)
return ret_val;
}
-static long _rtl92c_translate_todbm(struct ieee80211_hw *hw,
- u8 signal_strength_index)
-{
- long signal_power;
-
- signal_power = (long)((signal_strength_index + 1) >> 1);
- signal_power -= 95;
- return signal_power;
-}
-
static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
long currsig)
{
@@ -913,180 +904,6 @@ static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
(hw, total_rssi /= rf_rx_num));
}
-static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw,
- struct rtl_stats *pstats)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_phy *rtlphy = &(rtlpriv->phy);
- u8 rfpath;
- u32 last_rssi, tmpval;
-
- if (pstats->packet_toself || pstats->packet_beacon) {
- rtlpriv->stats.rssi_calculate_cnt++;
- if (rtlpriv->stats.ui_rssi.total_num++ >=
- PHY_RSSI_SLID_WIN_MAX) {
- rtlpriv->stats.ui_rssi.total_num =
- PHY_RSSI_SLID_WIN_MAX;
- last_rssi =
- rtlpriv->stats.ui_rssi.elements[rtlpriv->
- stats.ui_rssi.index];
- rtlpriv->stats.ui_rssi.total_val -= last_rssi;
- }
- rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
- rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
- index++] = pstats->signalstrength;
- if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
- rtlpriv->stats.ui_rssi.index = 0;
- tmpval = rtlpriv->stats.ui_rssi.total_val /
- rtlpriv->stats.ui_rssi.total_num;
- rtlpriv->stats.signal_strength =
- _rtl92c_translate_todbm(hw, (u8) tmpval);
- pstats->rssi = rtlpriv->stats.signal_strength;
- }
- if (!pstats->is_cck && pstats->packet_toself) {
- for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
- rfpath++) {
- if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
- continue;
- if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
- rtlpriv->stats.rx_rssi_percentage[rfpath] =
- pstats->rx_mimo_signalstrength[rfpath];
- }
- if (pstats->rx_mimo_signalstrength[rfpath] >
- rtlpriv->stats.rx_rssi_percentage[rfpath]) {
- rtlpriv->stats.rx_rssi_percentage[rfpath] =
- ((rtlpriv->stats.
- rx_rssi_percentage[rfpath] *
- (RX_SMOOTH_FACTOR - 1)) +
- (pstats->rx_mimo_signalstrength[rfpath])) /
- (RX_SMOOTH_FACTOR);
-
- rtlpriv->stats.rx_rssi_percentage[rfpath] =
- rtlpriv->stats.rx_rssi_percentage[rfpath] +
- 1;
- } else {
- rtlpriv->stats.rx_rssi_percentage[rfpath] =
- ((rtlpriv->stats.
- rx_rssi_percentage[rfpath] *
- (RX_SMOOTH_FACTOR - 1)) +
- (pstats->rx_mimo_signalstrength[rfpath])) /
- (RX_SMOOTH_FACTOR);
- }
- }
- }
-}
-
-static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw,
- struct rtl_stats *pstats)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- int weighting = 0;
-
- if (rtlpriv->stats.recv_signal_power == 0)
- rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
- if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
- weighting = 5;
- else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
- weighting = (-5);
- rtlpriv->stats.recv_signal_power =
- (rtlpriv->stats.recv_signal_power * 5 +
- pstats->recvsignalpower + weighting) / 6;
-}
-
-static void _rtl92c_process_pwdb(struct ieee80211_hw *hw,
- struct rtl_stats *pstats)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
- long undec_sm_pwdb = 0;
-
- if (mac->opmode == NL80211_IFTYPE_ADHOC) {
- return;
- } else {
- undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
- }
- if (pstats->packet_toself || pstats->packet_beacon) {
- if (undec_sm_pwdb < 0)
- undec_sm_pwdb = pstats->rx_pwdb_all;
- if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
- undec_sm_pwdb = (((undec_sm_pwdb) *
- (RX_SMOOTH_FACTOR - 1)) +
- (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
- undec_sm_pwdb += 1;
- } else {
- undec_sm_pwdb = (((undec_sm_pwdb) *
- (RX_SMOOTH_FACTOR - 1)) +
- (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
- }
- rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
- _rtl92c_update_rxsignalstatistics(hw, pstats);
- }
-}
-
-static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw,
- struct rtl_stats *pstats)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- u32 last_evm = 0, n_stream, tmpval;
-
- if (pstats->signalquality != 0) {
- if (pstats->packet_toself || pstats->packet_beacon) {
- if (rtlpriv->stats.LINK_Q.total_num++ >=
- PHY_LINKQUALITY_SLID_WIN_MAX) {
- rtlpriv->stats.LINK_Q.total_num =
- PHY_LINKQUALITY_SLID_WIN_MAX;
- last_evm =
- rtlpriv->stats.LINK_Q.elements
- [rtlpriv->stats.LINK_Q.index];
- rtlpriv->stats.LINK_Q.total_val -=
- last_evm;
- }
- rtlpriv->stats.LINK_Q.total_val +=
- pstats->signalquality;
- rtlpriv->stats.LINK_Q.elements
- [rtlpriv->stats.LINK_Q.index++] =
- pstats->signalquality;
- if (rtlpriv->stats.LINK_Q.index >=
- PHY_LINKQUALITY_SLID_WIN_MAX)
- rtlpriv->stats.LINK_Q.index = 0;
- tmpval = rtlpriv->stats.LINK_Q.total_val /
- rtlpriv->stats.LINK_Q.total_num;
- rtlpriv->stats.signal_quality = tmpval;
- rtlpriv->stats.last_sigstrength_inpercent = tmpval;
- for (n_stream = 0; n_stream < 2;
- n_stream++) {
- if (pstats->RX_SIGQ[n_stream] != -1) {
- if (!rtlpriv->stats.RX_EVM[n_stream]) {
- rtlpriv->stats.RX_EVM[n_stream]
- = pstats->RX_SIGQ[n_stream];
- }
- rtlpriv->stats.RX_EVM[n_stream] =
- ((rtlpriv->stats.RX_EVM
- [n_stream] *
- (RX_SMOOTH_FACTOR - 1)) +
- (pstats->RX_SIGQ
- [n_stream] * 1)) /
- (RX_SMOOTH_FACTOR);
- }
- }
- }
- } else {
- ;
- }
-}
-
-static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw,
- u8 *buffer,
- struct rtl_stats *pcurrent_stats)
-{
- if (!pcurrent_stats->packet_matchbssid &&
- !pcurrent_stats->packet_beacon)
- return;
- _rtl92c_process_ui_rssi(hw, pcurrent_stats);
- _rtl92c_process_pwdb(hw, pcurrent_stats);
- _rtl92c_process_LINK_Q(hw, pcurrent_stats);
-}
-
void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct rtl_stats *pstats,
@@ -1123,5 +940,5 @@ void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
_rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
packet_matchbssid, packet_toself,
packet_beacon);
- _rtl92c_process_phyinfo(hw, tmp_buf, pstats);
+ rtl_process_phyinfo(hw, tmp_buf, pstats);
}
--
1.8.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-08 23:16 ` Larry Finger
@ 2013-09-09 14:16 ` Mark Cave-Ayland
2013-09-09 14:57 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-09 14:16 UTC (permalink / raw)
To: Larry Finger; +Cc: Timothy Rundle, linux-wireless
On 09/09/13 00:16, Larry Finger wrote:
> On 09/08/2013 06:53 AM, Timothy Rundle wrote:
>> My TL-WN821N with a RTL8192CU chipsets fails to stay connected. It
>> appears to be disconnecting every 5-10 seconds. Since the issue
>> happens with the mainline kernel, the downstream maintainer ask me to
>> post here. Here is a section of my kernel log:
>
> This problem has been reported before; however, I cannot duplicate it on
> my openSUSE KDE system that controls the wireless using NetworkManager.
Yes, this sounds like exactly the same problem that I reported a couple
of weeks ago. Note that I see the issue invoking wpa_supplicant manually
rather than using NetworkManager, so I don't think that this is part of
the problem.
I can also clarify that if I remove *all* entries from
wpa_supplicant.conf except for the one AP I'm trying to associate with,
then I can generally get an initial association within about 30-60s.
However I still repeatedly see drop-outs every 30s or so.
> When taking another look at the code, I realized that rtl8192cu has
> duplicated a routine that is found in rtlwifi. The attached patch
> implements that change. Please try it and report back. I don't expect it
> to do much good as your problem appears to be a bad interaction with the
> Ubuntu front-end to wireless.
I've just tried the attached patch, and while it applies cleanly, I see
no change in behaviour in that I keep associating/deassociating from the
AP :(
Larry, did those traces I sent you off-list help at all? I'm also happy
to test patches that include more verbose debugging information in order
to help further with this.
Also I notice that Debian Wheezy includes a slightly older version of
wpa_supplicant:
# wpa_supplicant -v
wpa_supplicant v1.0
Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> and contributors
I could try building directly from source 1.1 and/or 2.0 if you think
that would help too? Perhaps some internal Debian patches are having an
effect here?
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 14:16 ` Mark Cave-Ayland
@ 2013-09-09 14:57 ` Larry Finger
2013-09-09 15:08 ` Oleksij Rempel
2013-09-09 15:27 ` Mark Cave-Ayland
0 siblings, 2 replies; 27+ messages in thread
From: Larry Finger @ 2013-09-09 14:57 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Timothy Rundle, linux-wireless
On 09/09/2013 09:16 AM, Mark Cave-Ayland wrote:
> On 09/09/13 00:16, Larry Finger wrote:
>
>> On 09/08/2013 06:53 AM, Timothy Rundle wrote:
>>> My TL-WN821N with a RTL8192CU chipsets fails to stay connected. It
>>> appears to be disconnecting every 5-10 seconds. Since the issue
>>> happens with the mainline kernel, the downstream maintainer ask me to
>>> post here. Here is a section of my kernel log:
>>
>> This problem has been reported before; however, I cannot duplicate it on
>> my openSUSE KDE system that controls the wireless using NetworkManager.
>
> Yes, this sounds like exactly the same problem that I reported a couple of weeks
> ago. Note that I see the issue invoking wpa_supplicant manually rather than
> using NetworkManager, so I don't think that this is part of the problem.
>
> I can also clarify that if I remove *all* entries from wpa_supplicant.conf
> except for the one AP I'm trying to associate with, then I can generally get an
> initial association within about 30-60s. However I still repeatedly see
> drop-outs every 30s or so.
I think your user space is exactly the problem. As I am writing this, my device,
which lsusb reports as "ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un
802.11n Wireless Adapter [Realtek RTL8188CUS]" has been up for a little over 20
hours. During that time, there have been 23 deauthentications for reason 7, but
0 of the "connection to AP lost" variety.
My system is running version 1.1 of wpa_supplicant, 0.9.6.4 of NetworkManager,
and 0.9.0.7 of the KDE applet.
None of my wireless connections are made automatically. When I select a
particular AP from the KDE applet, it is roughly 2 seconds until the interface
has gotten an IP and reports its state as connected.
I will switch my system from NM to manual control to see what happens.
Larry
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 14:57 ` Larry Finger
@ 2013-09-09 15:08 ` Oleksij Rempel
2013-09-09 15:27 ` Mark Cave-Ayland
1 sibling, 0 replies; 27+ messages in thread
From: Oleksij Rempel @ 2013-09-09 15:08 UTC (permalink / raw)
To: Larry Finger; +Cc: Mark Cave-Ayland, Timothy Rundle, linux-wireless
Am 09.09.2013 16:57, schrieb Larry Finger:
> On 09/09/2013 09:16 AM, Mark Cave-Ayland wrote:
>> On 09/09/13 00:16, Larry Finger wrote:
>>
>>> On 09/08/2013 06:53 AM, Timothy Rundle wrote:
>>>> My TL-WN821N with a RTL8192CU chipsets fails to stay connected. It
>>>> appears to be disconnecting every 5-10 seconds. Since the issue
>>>> happens with the mainline kernel, the downstream maintainer ask me to
>>>> post here. Here is a section of my kernel log:
>>>
>>> This problem has been reported before; however, I cannot duplicate it on
>>> my openSUSE KDE system that controls the wireless using NetworkManager.
>>
>> Yes, this sounds like exactly the same problem that I reported a
>> couple of weeks
>> ago. Note that I see the issue invoking wpa_supplicant manually rather
>> than
>> using NetworkManager, so I don't think that this is part of the problem.
>>
>> I can also clarify that if I remove *all* entries from
>> wpa_supplicant.conf
>> except for the one AP I'm trying to associate with, then I can
>> generally get an
>> initial association within about 30-60s. However I still repeatedly see
>> drop-outs every 30s or so.
>
> I think your user space is exactly the problem. As I am writing this, my
> device, which lsusb reports as "ID 7392:7811 Edimax Technology Co., Ltd
> EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]" has been up for
> a little over 20 hours. During that time, there have been 23
> deauthentications for reason 7, but 0 of the "connection to AP lost"
> variety.
>
> My system is running version 1.1 of wpa_supplicant, 0.9.6.4 of
> NetworkManager, and 0.9.0.7 of the KDE applet.
>
> None of my wireless connections are made automatically. When I select a
> particular AP from the KDE applet, it is roughly 2 seconds until the
> interface has gotten an IP and reports its state as connected.
>
> I will switch my system from NM to manual control to see what happens.
>
> Larry
Just in case:
There can be some usb issue. At least i need to fight right now with
some of them on ath9k_htc.
--
Regards,
Oleksij
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 14:57 ` Larry Finger
2013-09-09 15:08 ` Oleksij Rempel
@ 2013-09-09 15:27 ` Mark Cave-Ayland
2013-09-09 17:04 ` Larry Finger
1 sibling, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-09 15:27 UTC (permalink / raw)
To: Larry Finger; +Cc: Timothy Rundle, linux-wireless
On 09/09/13 15:57, Larry Finger wrote:
> I think your user space is exactly the problem. As I am writing this, my
> device, which lsusb reports as "ID 7392:7811 Edimax Technology Co., Ltd
> EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]" has been up for
> a little over 20 hours. During that time, there have been 23
> deauthentications for reason 7, but 0 of the "connection to AP lost"
> variety.
I've just tried building wpa_supplicant 2.0 from source and it sadly
doesn't make any difference here.
I do still however see the following in dmesg output:
rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
Briefly looking through the code in rtlwifi/base.c I see that the
watchdog message above is triggered by the condition
(rtlpriv->link_info.bcn_rx_inperiod +
rtlpriv->link_info.num_rx_inperiod) == 0).
The bcn_rx_inperiod value is only incremented by rtl_beacon_statistic()
in base.c, which is in turn called from _rtl_usb_rx_process_noagg() (but
not _rtl_usb_rx_process_agg() for some reason?). Shall I try adding some
debugging printk() statements in there to get a feel for what is going
on? Or would it be better to attempt a trace with debug=0x5?
> My system is running version 1.1 of wpa_supplicant, 0.9.6.4 of
> NetworkManager, and 0.9.0.7 of the KDE applet.
>
> None of my wireless connections are made automatically. When I select a
> particular AP from the KDE applet, it is roughly 2 seconds until the
> interface has gotten an IP and reports its state as connected.
>
> I will switch my system from NM to manual control to see what happens.
Interesting. Did it make any difference in the end?
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 15:27 ` Mark Cave-Ayland
@ 2013-09-09 17:04 ` Larry Finger
[not found] ` <522E0573.4000804@ilande.co.uk>
2013-09-15 8:17 ` Olivier Reuland
0 siblings, 2 replies; 27+ messages in thread
From: Larry Finger @ 2013-09-09 17:04 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Timothy Rundle, linux-wireless
[-- Attachment #1: Type: text/plain, Size: 2038 bytes --]
On 09/09/2013 10:27 AM, Mark Cave-Ayland wrote:
> On 09/09/13 15:57, Larry Finger wrote:
>
>> I think your user space is exactly the problem. As I am writing this, my
>> device, which lsusb reports as "ID 7392:7811 Edimax Technology Co., Ltd
>> EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]" has been up for
>> a little over 20 hours. During that time, there have been 23
>> deauthentications for reason 7, but 0 of the "connection to AP lost"
>> variety.
>
> I've just tried building wpa_supplicant 2.0 from source and it sadly doesn't
> make any difference here.
>
> I do still however see the following in dmesg output:
>
> rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
>
> Briefly looking through the code in rtlwifi/base.c I see that the watchdog
> message above is triggered by the condition (rtlpriv->link_info.bcn_rx_inperiod
> + rtlpriv->link_info.num_rx_inperiod) == 0).
>
> The bcn_rx_inperiod value is only incremented by rtl_beacon_statistic() in
> base.c, which is in turn called from _rtl_usb_rx_process_noagg() (but not
> _rtl_usb_rx_process_agg() for some reason?). Shall I try adding some debugging
> printk() statements in there to get a feel for what is going on? Or would it be
> better to attempt a trace with debug=0x5?
Debug level 5 will inundate you with so much info that you will not get much
feeling for the results. Even the Realtek engineers never ask for level 5. Try
the attached patch. That will let us know if rtl_beacon_statistic() is being
called, and what parameters it is getting.
I have added the call to rtl_beacon_statistic() to _rtl_usb_rx_process_agg(),
which should be the routine used in my connection to an AP using WPA2, which
allows aggregation. As I write this, the revised driver has been running for
only 1800 seconds, but I have not seen any of the "AP off" messages.
>> I will switch my system from NM to manual control to see what happens.
>
> Interesting. Did it make any difference in the end?
In 3 hours, it made no difference.
Larry
[-- Attachment #2: rtl8192cu_dump_AP_off --]
[-- Type: text/plain, Size: 1235 bytes --]
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/base.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
@@ -1287,7 +1287,13 @@ void rtl_beacon_statistic(struct ieee802
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ static int count;
+ if (count++ < 100) {
+ pr_info("mode %d, state %d, is_beacon %d, is_probe_resp %d, length %d, MAC %pM\n",
+ rtlpriv->mac80211.opmode, rtlpriv->mac80211.link_state, ieee80211_is_beacon(hdr->frame_control),
+ ieee80211_is_probe_resp(hdr->frame_control), skb->len, hdr->addr3);
+ }
if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
return;
diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index e56778c..ba9844a 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -484,6 +484,8 @@ static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
if (unicast)
rtlpriv->link_info.num_rx_inperiod++;
}
+ /* static bcn for roaming */
+ rtl_beacon_statistic(hw, skb);
}
}
^ permalink raw reply related [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
[not found] ` <522E0573.4000804@ilande.co.uk>
@ 2013-09-09 19:03 ` Larry Finger
2013-09-09 22:05 ` Mark Cave-Ayland
0 siblings, 1 reply; 27+ messages in thread
From: Larry Finger @ 2013-09-09 19:03 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Timothy Rundle, linux-wireless
[-- Attachment #1: Type: text/plain, Size: 968 bytes --]
On 09/09/2013 12:29 PM, Mark Cave-Ayland wrote:
> Please find the attached dmesg output from my current environment which is
> Linus' git commit 6a7492a4b2e05051a44458d7187023e22d580666 along with your
> beacon patch.
>
> Does that help provide any further insight? To my untrained eye, it really looks
> as if I'm not getting beacons every 6s as suggested by the comments in base.c.
>
> (Feel free to CC any replies back to the list if you're happy no secrets are
> being revealed)
There were no secrets in that dump, but it did reveal a major clue.
A response from your system for your AP was:
mode 2, state 0, is_beacon 0, is_probe_resp 1, length 147
For the number of beacons to be updated, the state has to be 2 or 3. My system
has scan_ssid=1 in the wpa_supplicant configuration file. When the scan
finishes, then a value of 2 is set into the mode variable.
The attached updated patch should set the correct mode even if scanning is not
enabled.
Larry
[-- Attachment #2: rtl8192cu_dump_AP_off --]
[-- Type: text/plain, Size: 1781 bytes --]
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/base.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
@@ -1287,7 +1287,13 @@ void rtl_beacon_statistic(struct ieee802
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ static int count;
+ if (count++ < 100) {
+ pr_info("mode %d, state %d, is_beacon %d, is_probe_resp %d, length %d, MAC %pM\n",
+ rtlpriv->mac80211.opmode, rtlpriv->mac80211.link_state, ieee80211_is_beacon(hdr->frame_control),
+ ieee80211_is_probe_resp(hdr->frame_control), skb->len, hdr->addr3);
+ }
if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
return;
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/usb.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/usb.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/usb.c
@@ -484,6 +484,8 @@ static void _rtl_usb_rx_process_agg(stru
if (unicast)
rtlpriv->link_info.num_rx_inperiod++;
}
+ /* static bcn for roaming */
+ rtl_beacon_statistic(hw, skb);
}
}
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/core.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/core.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/core.c
@@ -184,6 +184,7 @@ static int rtl_op_add_interface(struct i
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS]);
}
+ mac->link_state = MAC80211_LINKED;
break;
case NL80211_IFTYPE_ADHOC:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 19:03 ` Larry Finger
@ 2013-09-09 22:05 ` Mark Cave-Ayland
2013-09-09 23:04 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-09 22:05 UTC (permalink / raw)
To: Larry Finger; +Cc: Timothy Rundle, linux-wireless
On 09/09/13 20:03, Larry Finger wrote:
> There were no secrets in that dump, but it did reveal a major clue.
>
> A response from your system for your AP was:
>
> mode 2, state 0, is_beacon 0, is_probe_resp 1, length 147
>
> For the number of beacons to be updated, the state has to be 2 or 3. My
> system has scan_ssid=1 in the wpa_supplicant configuration file. When
> the scan finishes, then a value of 2 is set into the mode variable.
>
> The attached updated patch should set the correct mode even if scanning
> is not enabled.
Aha! This patch is definitely a step in the right direction - with this
applied, wpa_supplicant now associates immediately with the AP without
the initial delay :)
However... I'm still seeing the same
"rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now"
message appearing in dmesg after every 10s or so. I've uploaded the
updated dmesg output to
http://www.ilande.co.uk/tmp/rtl8192cu_patch-2-dmesg.txt for you to take
a look at.
I also tried another experiment which was to change your patch so that
instead of logging just the first 100 beacons to dmesg, log every 10th
beacon (count % 10) to dmesg instead. This showed that even when the
timeouts are occurring against the AP, I'm still seeing a continual
stream of beacons from other stations on the network.
This makes me wonder if Oleksij is correct in that the problem is that
not all the frames coming from the USB interface are being picked up by
the driver. Perhaps not all incoming USB RX buffers are being scanned
(causing some queued frames to be lost) or maybe USB transfers can
contain more than 1 frame and rtlwifi is only catching the first frame
within each notified transfer?
To double check whether it was a general ehci-pci problem, I tried
plugging in a spare zd1211rw dongle and that worked absolutely fine. So
I think that's a reasonable indication that general USB function is okay.
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 22:05 ` Mark Cave-Ayland
@ 2013-09-09 23:04 ` Larry Finger
2013-09-09 23:45 ` Mark Cave-Ayland
0 siblings, 1 reply; 27+ messages in thread
From: Larry Finger @ 2013-09-09 23:04 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Timothy Rundle, linux-wireless
[-- Attachment #1: Type: text/plain, Size: 2382 bytes --]
On 09/09/2013 05:05 PM, Mark Cave-Ayland wrote:
> On 09/09/13 20:03, Larry Finger wrote:
>
>> There were no secrets in that dump, but it did reveal a major clue.
>>
>> A response from your system for your AP was:
>>
>> mode 2, state 0, is_beacon 0, is_probe_resp 1, length 147
>>
>> For the number of beacons to be updated, the state has to be 2 or 3. My
>> system has scan_ssid=1 in the wpa_supplicant configuration file. When
>> the scan finishes, then a value of 2 is set into the mode variable.
>>
>> The attached updated patch should set the correct mode even if scanning
>> is not enabled.
>
> Aha! This patch is definitely a step in the right direction - with this applied,
> wpa_supplicant now associates immediately with the AP without the initial delay :)
>
> However... I'm still seeing the same "rtlwifi:rtl_watchdog_wq_callback():<0-0>
> AP off, try to reconnect now" message appearing in dmesg after every 10s or so.
> I've uploaded the updated dmesg output to
> http://www.ilande.co.uk/tmp/rtl8192cu_patch-2-dmesg.txt for you to take a look at.
>
> I also tried another experiment which was to change your patch so that instead
> of logging just the first 100 beacons to dmesg, log every 10th beacon (count %
> 10) to dmesg instead. This showed that even when the timeouts are occurring
> against the AP, I'm still seeing a continual stream of beacons from other
> stations on the network.
Looking at only every 10th one could be systematically missing the ones from
your AP.
> This makes me wonder if Oleksij is correct in that the problem is that not all
> the frames coming from the USB interface are being picked up by the driver.
> Perhaps not all incoming USB RX buffers are being scanned (causing some queued
> frames to be lost) or maybe USB transfers can contain more than 1 frame and
> rtlwifi is only catching the first frame within each notified transfer?
None of those suppositions make any sense.
> To double check whether it was a general ehci-pci problem, I tried plugging in a
> spare zd1211rw dongle and that worked absolutely fine. So I think that's a
> reasonable indication that general USB function is okay.
I do not suspect any USB problem unless it is in rtl8192cu.
Could you please run the attached patch? It will only print messages for your
AP, and print enough to still be getting them when the AP timeout occurs.
Thanks,
Larry
[-- Attachment #2: rtl8192cu_dump_AP_off --]
[-- Type: text/plain, Size: 2225 bytes --]
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/usb.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/usb.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/usb.c
@@ -484,6 +484,8 @@ static void _rtl_usb_rx_process_agg(stru
if (unicast)
rtlpriv->link_info.num_rx_inperiod++;
}
+ /* static bcn for roaming */
+ rtl_beacon_statistic(hw, skb);
}
}
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/core.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/core.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/core.c
@@ -184,6 +184,7 @@ static int rtl_op_add_interface(struct i
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS]);
}
+ mac->link_state = MAC80211_LINKED;
break;
case NL80211_IFTYPE_ADHOC:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/base.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
@@ -1287,6 +1287,17 @@ void rtl_beacon_statistic(struct ieee802
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ static int count;
+
+ /* and only beacons from the associated BSSID, please */
+ if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
+ return;
+
+ if (count++ < 1200) {
+ pr_info("mode %d, state %d, is_beacon %d, is_probe_resp %d, length %d\n",
+ rtlpriv->mac80211.opmode, rtlpriv->mac80211.link_state, ieee80211_is_beacon(hdr->frame_control),
+ ieee80211_is_probe_resp(hdr->frame_control), skb->len);
+ }
if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
return;
@@ -1303,10 +1314,6 @@ void rtl_beacon_statistic(struct ieee802
if (skb->len <= 40 + FCS_LEN)
return;
- /* and only beacons from the associated BSSID, please */
- if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
- return;
-
rtlpriv->link_info.bcn_rx_inperiod++;
}
EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 23:04 ` Larry Finger
@ 2013-09-09 23:45 ` Mark Cave-Ayland
2013-09-10 2:52 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-09 23:45 UTC (permalink / raw)
To: Larry Finger; +Cc: Timothy Rundle, linux-wireless
On 10/09/13 00:04, Larry Finger wrote:
>> I also tried another experiment which was to change your patch so that
>> instead
>> of logging just the first 100 beacons to dmesg, log every 10th beacon
>> (count %
>> 10) to dmesg instead. This showed that even when the timeouts are
>> occurring
>> against the AP, I'm still seeing a continual stream of beacons from other
>> stations on the network.
>
> Looking at only every 10th one could be systematically missing the ones
> from your AP.
Oh sure - what I was looking to prove was whether it was all beacons
that weren't getting through, or just the ones from the AP when the
timeout occurred.
>> This makes me wonder if Oleksij is correct in that the problem is that
>> not all
>> the frames coming from the USB interface are being picked up by the
>> driver.
>> Perhaps not all incoming USB RX buffers are being scanned (causing
>> some queued
>> frames to be lost) or maybe USB transfers can contain more than 1
>> frame and
>> rtlwifi is only catching the first frame within each notified transfer?
>
> None of those suppositions make any sense.
Well I freely admit that I don't have much knowledge of the kernel USB
layers (only from some old embedded systems years ago), so it was really
just a case of thinking out loud...
>> To double check whether it was a general ehci-pci problem, I tried
>> plugging in a
>> spare zd1211rw dongle and that worked absolutely fine. So I think
>> that's a
>> reasonable indication that general USB function is okay.
>
> I do not suspect any USB problem unless it is in rtl8192cu.
Okay.
> Could you please run the attached patch? It will only print messages for
> your AP, and print enough to still be getting them when the AP timeout
> occurs.
Done.
dmesg output:
http://www.ilande.co.uk/tmp/rtl8192cu_patch-3-dmesg.txt
wpa_supplicant output:
http://www.ilande.co.uk/tmp/rtl8192cu_patch-3-wpa_supplicant.txt
Now the interesting part was as you can see from the logs, I managed to
get a reasonably long association to the AP towards the end so I tried
running dhclient against the wlan1 interface - this was slow, taking
about 60s to complete, but it did eventually return with an IP address.
With that in place, I tried pinging 8.8.8.8 and ended up with a very
poor connection, with the ping exit banner reporting 87% packet loss :(
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 23:45 ` Mark Cave-Ayland
@ 2013-09-10 2:52 ` Larry Finger
2013-09-10 5:58 ` Mark Cave-Ayland
0 siblings, 1 reply; 27+ messages in thread
From: Larry Finger @ 2013-09-10 2:52 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Timothy Rundle, linux-wireless
[-- Attachment #1: Type: text/plain, Size: 1709 bytes --]
On 09/09/2013 06:45 PM, Mark Cave-Ayland wrote:
> dmesg output:
> http://www.ilande.co.uk/tmp/rtl8192cu_patch-3-dmesg.txt
>
> wpa_supplicant output:
> http://www.ilande.co.uk/tmp/rtl8192cu_patch-3-wpa_supplicant.txt
>
> Now the interesting part was as you can see from the logs, I managed to get a
> reasonably long association to the AP towards the end so I tried running
> dhclient against the wlan1 interface - this was slow, taking about 60s to
> complete, but it did eventually return with an IP address. With that in place, I
> tried pinging 8.8.8.8 and ended up with a very poor connection, with the ping
> exit banner reporting 87% packet loss :(
We now know that the beacons are being lost. The last one was at 90600.642566 as
shown below:
Sep 10 00:29:48 kentang kernel: [90599.513526] rtlwifi: mode 2, state 2,
is_beacon 1, is_probe_resp 0, length 153
Sep 10 00:29:50 kentang kernel: [90600.642566] rtlwifi: mode 2, state 2,
is_beacon 1, is_probe_resp 0, length 153
Sep 10 00:29:57 kentang kernel: [90607.829051]
rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
Sep 10 00:29:57 kentang kernel: [90607.829058] wlan1: Connection to AP
00:1f:9f:d5:a8:3b lost
Sep 10 00:29:57 kentang kernel: [90607.830086] cfg80211: Calling CRDA to update
world regulatory domain
We have to conclude that your interface has been shut down as we have gotten no
beacons or RX data packets received. Unfortunately, my restricting the output to
only your AP does not let me know if any data are being received. I hate to do
this, but the attached patch will dump all packets again with no limit. Once you
get a disconnect, then you can stop the run before the log gets too full.
Larry
[-- Attachment #2: rtl8192cu_dump_AP_off --]
[-- Type: text/plain, Size: 1709 bytes --]
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/usb.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/usb.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/usb.c
@@ -484,6 +484,8 @@ static void _rtl_usb_rx_process_agg(stru
if (unicast)
rtlpriv->link_info.num_rx_inperiod++;
}
+ /* static bcn for roaming */
+ rtl_beacon_statistic(hw, skb);
}
}
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/core.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/core.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/core.c
@@ -184,6 +184,7 @@ static int rtl_op_add_interface(struct i
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS]);
}
+ mac->link_state = MAC80211_LINKED;
break;
case NL80211_IFTYPE_ADHOC:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
Index: wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
===================================================================
--- wireless-testing-save.orig/drivers/net/wireless/rtlwifi/base.c
+++ wireless-testing-save/drivers/net/wireless/rtlwifi/base.c
@@ -1288,6 +1288,10 @@ void rtl_beacon_statistic(struct ieee802
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ pr_info("mode %d, state %d, is_beacon %d, is_probe_resp %d, length %d\n",
+ rtlpriv->mac80211.opmode, rtlpriv->mac80211.link_state, ieee80211_is_beacon(hdr->frame_control),
+ ieee80211_is_probe_resp(hdr->frame_control), skb->len);
+
if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
return;
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-10 2:52 ` Larry Finger
@ 2013-09-10 5:58 ` Mark Cave-Ayland
2013-09-10 15:14 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-10 5:58 UTC (permalink / raw)
To: Larry Finger; +Cc: Timothy Rundle, linux-wireless
On 10/09/13 03:52, Larry Finger wrote:
> We now know that the beacons are being lost. The last one was at
> 90600.642566 as shown below:
>
> Sep 10 00:29:48 kentang kernel: [90599.513526] rtlwifi: mode 2, state 2,
> is_beacon 1, is_probe_resp 0, length 153
> Sep 10 00:29:50 kentang kernel: [90600.642566] rtlwifi: mode 2, state 2,
> is_beacon 1, is_probe_resp 0, length 153
> Sep 10 00:29:57 kentang kernel: [90607.829051]
> rtlwifi:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
> Sep 10 00:29:57 kentang kernel: [90607.829058] wlan1: Connection to AP
> 00:1f:9f:d5:a8:3b lost
> Sep 10 00:29:57 kentang kernel: [90607.830086] cfg80211: Calling CRDA to
> update world regulatory domain
>
> We have to conclude that your interface has been shut down as we have
> gotten no beacons or RX data packets received. Unfortunately, my
> restricting the output to only your AP does not let me know if any data
> are being received. I hate to do this, but the attached patch will dump
> all packets again with no limit. Once you get a disconnect, then you can
> stop the run before the log gets too full.
No worries - disk space is reasonably cheap these days ;)
dmesg output:
http://www.ilande.co.uk/tmp/rtl8192cu_patch-4-dmesg.txt
wpa_supplicant output:
http://www.ilande.co.uk/tmp/rtl8192cu_patch-4-wpa_supplicant.txt
I noticed that I got several re-authentication attempts in the dmesg
output without the corresponding rtl_watchdog_wq_callback() line being
emitted - this is again something I don't see with zd1211rw and iwlwifi.
Once these drivers are associated, they seem to stay in that state for
hours.
Whilst checking various parts of my kernel, I noticed for the first time
during testing that my current kernel configuration doesn't have SMP
enabled. This got me thinking that perhaps there are other build options
which could have an effect on the driver. Hence I also uploaded a copy
of my .config file to http://www.ilande.co.uk/tmp/rtl8192cu-config in
the hope that maybe this can help you recreate the issue locally?
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-10 5:58 ` Mark Cave-Ayland
@ 2013-09-10 15:14 ` Larry Finger
2013-09-10 20:04 ` Mark Cave-Ayland
0 siblings, 1 reply; 27+ messages in thread
From: Larry Finger @ 2013-09-10 15:14 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Timothy Rundle, linux-wireless
On 09/10/2013 12:58 AM, Mark Cave-Ayland wrote:
>
> No worries - disk space is reasonably cheap these days ;)
>
> dmesg output:
> http://www.ilande.co.uk/tmp/rtl8192cu_patch-4-dmesg.txt
>
> wpa_supplicant output:
> http://www.ilande.co.uk/tmp/rtl8192cu_patch-4-wpa_supplicant.txt
>
> I noticed that I got several re-authentication attempts in the dmesg output
> without the corresponding rtl_watchdog_wq_callback() line being emitted - this
> is again something I don't see with zd1211rw and iwlwifi. Once these drivers are
> associated, they seem to stay in that state for hours.
Those disconnects do happen for reasons that I do not understand. They will be
worse on your system without a network manager as it appears that you need to
manually reconnect at that point, or at least it took a long time for the system
to react. With NetworkManager, that reconnect is automatic, and relatively quick.
> Whilst checking various parts of my kernel, I noticed for the first time during
> testing that my current kernel configuration doesn't have SMP enabled. This got
> me thinking that perhaps there are other build options which could have an
> effect on the driver. Hence I also uploaded a copy of my .config file to
> http://www.ilande.co.uk/tmp/rtl8192cu-config in the hope that maybe this can
> help you recreate the issue locally?
As I have a dual-core CPU, thus I always have SMP set. That should not be a
problem. In fact, the concurrent operation of 2 CPUs usually causes more
problems. I will review that configuration.
You can now disable the logging. When the watchdog reports that contact with the
AP has been lost, that is certainly true, and the watchdog is doing its job. In
addition, nothing was received from any AP, which leads me to conclude that the
receiver has locked up for some reason. I need to check to see what the code
does to recover. Perhaps that will help me understand the problem. In my current
run that has run for 20 hours, I have had two disconnects for Reason 3, but more
importantly, I have had two watchdog restarts. It does happen on my system, just
a lot less frequently. BTW, my ping loss rate is about 3%. That is too high, but
not as bad as yours.
Larry
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-10 15:14 ` Larry Finger
@ 2013-09-10 20:04 ` Mark Cave-Ayland
2013-09-11 20:09 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-10 20:04 UTC (permalink / raw)
To: Larry Finger; +Cc: Timothy Rundle, linux-wireless
On 10/09/13 16:14, Larry Finger wrote:
> Those disconnects do happen for reasons that I do not understand. They
> will be worse on your system without a network manager as it appears
> that you need to manually reconnect at that point, or at least it took a
> long time for the system to react. With NetworkManager, that reconnect
> is automatic, and relatively quick.
Okay - understood.
>> Whilst checking various parts of my kernel, I noticed for the first
>> time during
>> testing that my current kernel configuration doesn't have SMP enabled.
>> This got
>> me thinking that perhaps there are other build options which could
>> have an
>> effect on the driver. Hence I also uploaded a copy of my .config file to
>> http://www.ilande.co.uk/tmp/rtl8192cu-config in the hope that maybe
>> this can
>> help you recreate the issue locally?
>
> As I have a dual-core CPU, thus I always have SMP set. That should not
> be a problem. In fact, the concurrent operation of 2 CPUs usually causes
> more problems. I will review that configuration.
I'd definitely be interested to know if by duplicating that same
configuration, you see the same issues that I do.
> You can now disable the logging. When the watchdog reports that contact
> with the AP has been lost, that is certainly true, and the watchdog is
> doing its job. In addition, nothing was received from any AP, which
> leads me to conclude that the receiver has locked up for some reason. I
> need to check to see what the code does to recover. Perhaps that will
> help me understand the problem. In my current run that has run for 20
> hours, I have had two disconnects for Reason 3, but more importantly, I
> have had two watchdog restarts. It does happen on my system, just a lot
> less frequently. BTW, my ping loss rate is about 3%. That is too high,
> but not as bad as yours.
Interesting. Perhaps there is something different in the initial
programming of the radio that causes it to crash on my particular
hardware revision? As before, please let me know if there is anything
else you require.
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-10 20:04 ` Mark Cave-Ayland
@ 2013-09-11 20:09 ` Larry Finger
2013-09-12 23:02 ` Timothy Rundle
` (2 more replies)
0 siblings, 3 replies; 27+ messages in thread
From: Larry Finger @ 2013-09-11 20:09 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Timothy Rundle, linux-wireless
On 09/10/2013 03:04 PM, Mark Cave-Ayland wrote:
> Interesting. Perhaps there is something different in the initial programming of
> the radio that causes it to crash on my particular hardware revision? As before,
> please let me know if there is anything else you require.
From the log data, you have the same revision as I do.
I am now running a kernel built with your configuration. I needed to make a
couple of changes as it did not have one of the modules my disk system needs,
and nouveau caused kernel panics, but we are now operational. Outside of the
whole system being slow due to only one 2.0 GHz CPU, the wireless connection
seems to be stable. At least, there have been no disconnects in the first half hour.
Larry
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-11 20:09 ` Larry Finger
@ 2013-09-12 23:02 ` Timothy Rundle
2013-09-13 9:01 ` Mark Cave-Ayland
[not found] ` <CALa3VXbxQ1Z2J5weV7rQ16c53D1MQyDL1YGQrV6EkCJYfh=uYA@mail.gmail.com>
2 siblings, 0 replies; 27+ messages in thread
From: Timothy Rundle @ 2013-09-12 23:02 UTC (permalink / raw)
Cc: linux-wireless
I finally got some free time to go through all the patches. My results
were similar to Mark's, but I do not get the watchdog messages, though
I am pretty sure watchdog is disabled on my PC. I did even try
installing openSUSE 12.3, but did not have any success. It didn't
even find my wireless network. I manually configured the network via
network-manager, but still no luck.
Let me know if you need anything else from me.
On Wed, Sep 11, 2013 at 4:09 PM, Larry Finger <Larry.Finger@lwfinger.net> wrote:
> On 09/10/2013 03:04 PM, Mark Cave-Ayland wrote:
>
>> Interesting. Perhaps there is something different in the initial
>> programming of
>> the radio that causes it to crash on my particular hardware revision? As
>> before,
>> please let me know if there is anything else you require.
>
>
> From the log data, you have the same revision as I do.
>
> I am now running a kernel built with your configuration. I needed to make a
> couple of changes as it did not have one of the modules my disk system
> needs, and nouveau caused kernel panics, but we are now operational. Outside
> of the whole system being slow due to only one 2.0 GHz CPU, the wireless
> connection seems to be stable. At least, there have been no disconnects in
> the first half hour.
>
> Larry
>
>
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-11 20:09 ` Larry Finger
2013-09-12 23:02 ` Timothy Rundle
@ 2013-09-13 9:01 ` Mark Cave-Ayland
[not found] ` <CALa3VXbxQ1Z2J5weV7rQ16c53D1MQyDL1YGQrV6EkCJYfh=uYA@mail.gmail.com>
2 siblings, 0 replies; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-13 9:01 UTC (permalink / raw)
To: Larry Finger; +Cc: Timothy Rundle, linux-wireless
On 11/09/13 21:09, Larry Finger wrote:
> I am now running a kernel built with your configuration. I needed to
> make a couple of changes as it did not have one of the modules my disk
> system needs, and nouveau caused kernel panics, but we are now
> operational. Outside of the whole system being slow due to only one 2.0
> GHz CPU, the wireless connection seems to be stable. At least, there
> have been no disconnects in the first half hour.
Thanks for testing Larry. Last night I finished building an SMP-capable
kernel with the same configuration and I see no change in behaviour. So
I think we can rule this out as a possible cause.
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
[not found] ` <CALa3VXbxQ1Z2J5weV7rQ16c53D1MQyDL1YGQrV6EkCJYfh=uYA@mail.gmail.com>
@ 2013-09-13 17:52 ` Larry Finger
2013-09-19 0:42 ` Timothy Rundle
0 siblings, 1 reply; 27+ messages in thread
From: Larry Finger @ 2013-09-13 17:52 UTC (permalink / raw)
To: Timothy Rundle; +Cc: Mark Cave-Ayland, linux-wireless
On 09/12/2013 05:24 PM, Timothy Rundle wrote:
>
> I finally got some free time to go through all the patches. My results were
> similar to Mark's, but I do not get the watchdog messages, though I am pretty
> sure watchdog is disabled on my PC. I did even try installing openSUSE 12.3, but
> did not have any success. It didn't even find my wireless network. I manually
> configured the network via network-manager, but still no luck.
>
> Let me know if you need anything else from me.
The watchdog in rtl8192cu has nothing to do with any kernel watchdog timers.
They are totally separate.
Larry
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-09 17:04 ` Larry Finger
[not found] ` <522E0573.4000804@ilande.co.uk>
@ 2013-09-15 8:17 ` Olivier Reuland
2013-09-15 13:50 ` Larry Finger
1 sibling, 1 reply; 27+ messages in thread
From: Olivier Reuland @ 2013-09-15 8:17 UTC (permalink / raw)
To: linux-wireless
Hi,
I'm facing the same issue with a slightly different device: "ID 0b05:17ab
ASUSTek Computer, Inc. USB-N13 802.11n Network Adapter (rev. B1) [Realtek
RTL8192CU]". I'm also using Ubuntu, Saucy: "Linux desktop 3.11.0-7-generic
#13-Ubuntu SMP Tue Sep 10 20:55:38 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux".
Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added 'ssid'
value 'MyWiFi'
Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added
'scan_ssid' value '1'
Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added 'key_mgmt'
value 'WPA-PSK'
Sep 15 19:59:07 desktop NetworkManager[791]: <info> Config: added 'psk'
value '<omitted>'
Disconnect/reconnect cycle every 20-30 seconds.
Disconnect to fail every few minutes.
Sep 15 20:07:18 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:07:19 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> completed
Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: completed -> disconnected
Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:07:50 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:07:51 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:07:51 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:07:52 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> completed
Sep 15 20:08:02 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: completed -> disconnected
Sep 15 20:08:02 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:08:02 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:08:03 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> disconnected
Sep 15 20:08:03 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:08:04 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:08:16 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> disconnected
Sep 15 20:08:16 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> inactive
[FAILED JUST HERE]
Sep 15 20:08:29 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: inactive -> scanning
Sep 15 20:08:29 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:08:30 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> completed
Sep 15 20:09:06 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: completed -> disconnected
Sep 15 20:09:06 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:09:07 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> completed
Sep 15 20:09:26 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: completed -> disconnected
Sep 15 20:09:26 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:09:27 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:09:27 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> disconnected
Sep 15 20:09:27 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:09:28 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:09:28 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> disconnected
Sep 15 20:09:28 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:09:35 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> completed
Sep 15 20:09:42 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: completed -> disconnected
Sep 15 20:09:42 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:09:43 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:09:43 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> disconnected
Sep 15 20:09:43 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:09:44 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> completed
Sep 15 20:09:58 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: completed -> disconnected
Sep 15 20:09:58 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:09:59 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:09:59 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> disconnected
Sep 15 20:09:59 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:10:00 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> completed
Sep 15 20:10:16 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: completed -> disconnected
Sep 15 20:10:16 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:10:17 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:10:17 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> disconnected
Sep 15 20:10:17 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> scanning
Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: scanning -> authenticating
Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: authenticating -> associating
Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associating -> associated
Sep 15 20:10:24 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: associated -> 4-way handshake
Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> disconnected
Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: disconnected -> inactive
[FAILS AGAIN HERE]
The interesting part is probably:
Sep 15 20:10:30 desktop kernel: [ 4778.434695] wlan0: Connection to AP
9c:c7:a6:1c:dc:a5 lost
Sep 15 20:10:30 desktop wpa_supplicant[6415]: wlan0: WPA: 4-Way Handshake
failed - pre-shared key may be incorrect
Sep 15 20:10:30 desktop wpa_supplicant[6415]: wlan0: CTRL-EVENT-DISCONNECTED
bssid=9c:c7:a6:1c:dc:a5 reason=4
Sep 15 20:10:30 desktop kernel: [ 4778.454580] cfg80211: Calling CRDA to
update world regulatory domain
Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): supplicant
interface state: 4-way handshake -> disconnected
Sep 15 20:10:30 desktop NetworkManager[791]: <info> Activation
(wlan0/wireless): disconnected during association, asking for new key.
Sep 15 20:10:30 desktop NetworkManager[791]: <info> (wlan0): device state
change: activated -> need-auth (reason 'supplicant-disconnect') [100 60 8]
Let me know if there is anything I can do to help
Olivier
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-15 8:17 ` Olivier Reuland
@ 2013-09-15 13:50 ` Larry Finger
2013-09-15 17:48 ` Mark Cave-Ayland
0 siblings, 1 reply; 27+ messages in thread
From: Larry Finger @ 2013-09-15 13:50 UTC (permalink / raw)
To: Olivier Reuland; +Cc: linux-wireless
On 09/15/2013 03:17 AM, Olivier Reuland wrote:
> Hi,
>
> I'm facing the same issue with a slightly different device: "ID 0b05:17ab
> ASUSTek Computer, Inc. USB-N13 802.11n Network Adapter (rev. B1) [Realtek
> RTL8192CU]". I'm also using Ubuntu, Saucy: "Linux desktop 3.11.0-7-generic
> #13-Ubuntu SMP Tue Sep 10 20:55:38 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux".
--snip--
>
> Let me know if there is anything I can do to help
There is a known problem with the dynamic power management code for this chip.
Unfortunately, the problem does not affect my system. At the moment, my device
that uses rtl8192cu has been connected for 12 hours with no disconnects. The
only evidence of a bug here is poor performance.
Please describe your setup. What AP are you using? Is it an 802.11n or an
802.11g connection? How far is your station from the AP? Are there any obstacles
such as walls in the way? What is the signal strength as shown by iwconfig?
Larry
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-15 13:50 ` Larry Finger
@ 2013-09-15 17:48 ` Mark Cave-Ayland
2013-09-15 20:26 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-15 17:48 UTC (permalink / raw)
To: Larry Finger; +Cc: Olivier Reuland, linux-wireless
On 15/09/13 14:50, Larry Finger wrote:
> There is a known problem with the dynamic power management code for this
> chip. Unfortunately, the problem does not affect my system. At the
> moment, my device that uses rtl8192cu has been connected for 12 hours
> with no disconnects. The only evidence of a bug here is poor performance.
Did my email to the list yesterday provide any further clues at all? I
know that you're looking at re-working the power code, but if there is
any chance of a stop-gap fix for 3.12 then I know it would be greatly
appreciated :)
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-15 17:48 ` Mark Cave-Ayland
@ 2013-09-15 20:26 ` Larry Finger
0 siblings, 0 replies; 27+ messages in thread
From: Larry Finger @ 2013-09-15 20:26 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Olivier Reuland, linux-wireless
On 09/15/2013 12:48 PM, Mark Cave-Ayland wrote:
> On 15/09/13 14:50, Larry Finger wrote:
>
>> There is a known problem with the dynamic power management code for this
>> chip. Unfortunately, the problem does not affect my system. At the
>> moment, my device that uses rtl8192cu has been connected for 12 hours
>> with no disconnects. The only evidence of a bug here is poor performance.
>
> Did my email to the list yesterday provide any further clues at all? I know that
> you're looking at re-working the power code, but if there is any chance of a
> stop-gap fix for 3.12 then I know it would be greatly appreciated :)
Yes, you provided some clues, but as I have no knowledge of the internal
workings of the chips, I dare not set parameters willy-nilly as that might cause
chips to burn out and fail.
The vendor driver provides better performance for my device than does rtl8192cu.
I would provide the patches needed to compile it on a modern kernel; however, it
causes a kernel panic whenever you try to unload it. I have no time nor
inclination to debug that. Thus no one should use it unless you want to fix that
problem.
I am trying to change the in-kernel dm code to match the vendor driver. That is
difficult as nearly every variable is renamed.
Any patches will be pushed when they are ready, and not before. I will, however,
provide them for testing. It remains to be seen if any such patches will be
suitable for 3.12 and backporting to 3.11.
Larry
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-13 17:52 ` Larry Finger
@ 2013-09-19 0:42 ` Timothy Rundle
2013-09-19 6:48 ` Mark Cave-Ayland
0 siblings, 1 reply; 27+ messages in thread
From: Timothy Rundle @ 2013-09-19 0:42 UTC (permalink / raw)
To: Larry Finger; +Cc: Mark Cave-Ayland, linux-wireless
I found that if I setup a old wireless router as a repeater and keep
it within 10-12 feet I have a stable connection. If I move it back to
12-15 the connection becomes less reliable. Anything past 15 feet is
unusable.
I see there have been lots of conversations on the topic and you are
working on some power management changes. If you need me to do any
testing let me know.
Timothy
On Fri, Sep 13, 2013 at 1:52 PM, Larry Finger <Larry.Finger@lwfinger.net> wrote:
> On 09/12/2013 05:24 PM, Timothy Rundle wrote:
>>
>>
>> I finally got some free time to go through all the patches. My results
>> were
>> similar to Mark's, but I do not get the watchdog messages, though I am
>> pretty
>> sure watchdog is disabled on my PC. I did even try installing openSUSE
>> 12.3, but
>> did not have any success. It didn't even find my wireless network. I
>> manually
>> configured the network via network-manager, but still no luck.
>>
>> Let me know if you need anything else from me.
>
>
> The watchdog in rtl8192cu has nothing to do with any kernel watchdog timers.
> They are totally separate.
>
> Larry
>
>
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-19 0:42 ` Timothy Rundle
@ 2013-09-19 6:48 ` Mark Cave-Ayland
2013-09-19 10:45 ` Timothy Rundle
0 siblings, 1 reply; 27+ messages in thread
From: Mark Cave-Ayland @ 2013-09-19 6:48 UTC (permalink / raw)
To: Timothy Rundle; +Cc: Larry Finger, linux-wireless
On 19/09/13 01:42, Timothy Rundle wrote:
> I found that if I setup a old wireless router as a repeater and keep
> it within 10-12 feet I have a stable connection. If I move it back to
> 12-15 the connection becomes less reliable. Anything past 15 feet is
> unusable.
>
> I see there have been lots of conversations on the topic and you are
> working on some power management changes. If you need me to do any
> testing let me know.
Hi Timothy,
Thanks for the information. It's just a hunch at the moment, but is your
wireless router 802.11b/g only, i.e. it either doesn't have 802.11n
enabled or doesn't support 802.11n at all?
ATB,
Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-19 6:48 ` Mark Cave-Ayland
@ 2013-09-19 10:45 ` Timothy Rundle
2013-09-19 14:24 ` Larry Finger
0 siblings, 1 reply; 27+ messages in thread
From: Timothy Rundle @ 2013-09-19 10:45 UTC (permalink / raw)
To: Mark Cave-Ayland; +Cc: Larry Finger, linux-wireless
@Larry,
The patch/firmware seemed to help a little with the range (increased
from 12 to about 20), but I still can't connect to the mail router
about 30 feet away.
@Mike,
Yes my routers are 802.11b/g only. Been meaning to upgrade, but
things have been working well so I have been putting off.
Timothy
On Thu, Sep 19, 2013 at 2:48 AM, Mark Cave-Ayland
<mark.cave-ayland@ilande.co.uk> wrote:
> On 19/09/13 01:42, Timothy Rundle wrote:
>
>> I found that if I setup a old wireless router as a repeater and keep
>> it within 10-12 feet I have a stable connection. If I move it back to
>> 12-15 the connection becomes less reliable. Anything past 15 feet is
>> unusable.
>>
>> I see there have been lots of conversations on the topic and you are
>> working on some power management changes. If you need me to do any
>> testing let me know.
>
>
> Hi Timothy,
>
> Thanks for the information. It's just a hunch at the moment, but is your
> wireless router 802.11b/g only, i.e. it either doesn't have 802.11n enabled
> or doesn't support 802.11n at all?
>
>
> ATB,
>
> Mark.
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: RTL8192CU continually reconnecting
2013-09-19 10:45 ` Timothy Rundle
@ 2013-09-19 14:24 ` Larry Finger
0 siblings, 0 replies; 27+ messages in thread
From: Larry Finger @ 2013-09-19 14:24 UTC (permalink / raw)
To: Timothy Rundle; +Cc: Mark Cave-Ayland, linux-wireless
On 09/19/2013 05:45 AM, Timothy Rundle wrote:
> @Larry,
>
> The patch/firmware seemed to help a little with the range (increased
> from 12 to about 20), but I still can't connect to the mail router
> about 30 feet away.
>
> @Mike,
>
> Yes my routers are 802.11b/g only. Been meaning to upgrade, but
> things have been working well so I have been putting off.
>
> Timothy
>
> On Thu, Sep 19, 2013 at 2:48 AM, Mark Cave-Ayland
> <mark.cave-ayland@ilande.co.uk> wrote:
>> On 19/09/13 01:42, Timothy Rundle wrote:
>>
>>> I found that if I setup a old wireless router as a repeater and keep
>>> it within 10-12 feet I have a stable connection. If I move it back to
>>> 12-15 the connection becomes less reliable. Anything past 15 feet is
>>> unusable.
>>>
>>> I see there have been lots of conversations on the topic and you are
>>> working on some power management changes. If you need me to do any
>>> testing let me know.
>>
>>
>> Hi Timothy,
>>
>> Thanks for the information. It's just a hunch at the moment, but is your
>> wireless router 802.11b/g only, i.e. it either doesn't have 802.11n enabled
>> or doesn't support 802.11n at all?
My device connects equally well with 802.11n and 802.11b/g routers.
Mark: 802.11b is restricted to the CCK rates, which are 1, 2, 5.5, and 11 Mbps.
In 802.11g, rates 6, 12, 18, 24, 36, and 54 Mbps are all OFDM encoded.
Larry
^ permalink raw reply [flat|nested] 27+ messages in thread
end of thread, other threads:[~2013-09-19 14:24 UTC | newest]
Thread overview: 27+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-09-08 11:53 RTL8192CU continually reconnecting Timothy Rundle
2013-09-08 23:16 ` Larry Finger
2013-09-09 14:16 ` Mark Cave-Ayland
2013-09-09 14:57 ` Larry Finger
2013-09-09 15:08 ` Oleksij Rempel
2013-09-09 15:27 ` Mark Cave-Ayland
2013-09-09 17:04 ` Larry Finger
[not found] ` <522E0573.4000804@ilande.co.uk>
2013-09-09 19:03 ` Larry Finger
2013-09-09 22:05 ` Mark Cave-Ayland
2013-09-09 23:04 ` Larry Finger
2013-09-09 23:45 ` Mark Cave-Ayland
2013-09-10 2:52 ` Larry Finger
2013-09-10 5:58 ` Mark Cave-Ayland
2013-09-10 15:14 ` Larry Finger
2013-09-10 20:04 ` Mark Cave-Ayland
2013-09-11 20:09 ` Larry Finger
2013-09-12 23:02 ` Timothy Rundle
2013-09-13 9:01 ` Mark Cave-Ayland
[not found] ` <CALa3VXbxQ1Z2J5weV7rQ16c53D1MQyDL1YGQrV6EkCJYfh=uYA@mail.gmail.com>
2013-09-13 17:52 ` Larry Finger
2013-09-19 0:42 ` Timothy Rundle
2013-09-19 6:48 ` Mark Cave-Ayland
2013-09-19 10:45 ` Timothy Rundle
2013-09-19 14:24 ` Larry Finger
2013-09-15 8:17 ` Olivier Reuland
2013-09-15 13:50 ` Larry Finger
2013-09-15 17:48 ` Mark Cave-Ayland
2013-09-15 20:26 ` Larry Finger
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