Re: well working usb wlan stick

Re: well working usb wlan stick

[Xose Vazquez Perez]

feldmann markus wrote:

hi,

> i am searching for a well supported usb wlan stick
> which works with open source driver and supports wpa2.

> Any hints ?

only buy ZyDAS/Atheros(zd1211rw driver),  Realtek(rtl8187 driver) or
Ralink(rt73usb driver) devices.

more info at:
http://linuxwireless.org/en/users/Drivers
http://en.wikipedia.org/wiki/Comparison_of_open_source_wireless_drivers
http://www.seattlewireless.net/index.cgi/LinuxDrivers

regards,
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Prestige, ...

Re: well working usb wlan stick

[Alina Friedrichsen]

Hi!

> only buy ZyDAS/Atheros(zd1211rw driver),  Realtek(rtl8187 driver) or
> Ralink(rt73usb driver) devices.

As far I have tested, the ar9170 driver works okay for G too, only Draf=
t-N is not supported at the moment.

Regards
Alina

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Re: well working usb wlan stick

[Luis R. Rodriguez]

On Mon, Mar 16, 2009 at 8:51 AM, Alina Friedrichsen <x-alina@gmx.net> w=
rote:
> Hi!
>
>> only buy ZyDAS/Atheros(zd1211rw driver), =C2=A0Realtek(rtl8187 drive=
r) or
>> Ralink(rt73usb driver) devices.
>
> As far I have tested, the ar9170 driver works okay for G too, only Dr=
aft-N is not supported at the moment.

11n does work but currently only in the the otus driver, which is also
open but it just doesn't use mac80211. ar9170 is the driver which will
eventually get merged.

http://wireless.kernel.org/en/users/Drivers/ar9170
http://wireless.kernel.org/en/users/Drivers/otus

  Luis
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Re: well working usb wlan stick

[Alina Friedrichsen]

Hi Luis!

> 11n does work but currently only in the the otus driver, which is als=
o
> open but it just doesn't use mac80211. ar9170 is the driver which wil=
l
> eventually get merged.

Yes, but the otus driver is currently less stable then the ar9170 drive=
r. After my patches I haven't discovered a kernel panic anymore with it=
=2E

[STA, IBSS, not AP - max. ca. 2,4 MByte/s]

Regards
Alina

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Re: well working usb wlan stick

[Luis R. Rodriguez]

On Mon, Mar 16, 2009 at 9:37 AM, Alina Friedrichsen <x-alina@gmx.net> wrote:
> Hi Luis!
>
>> 11n does work but currently only in the the otus driver, which is also
>> open but it just doesn't use mac80211. ar9170 is the driver which will
>> eventually get merged.
>
> Yes, but the otus driver is currently less stable then the ar9170 driver. After my patches I haven't discovered a kernel panic anymore with it.
>
> [STA, IBSS, not AP - max. ca. 2,4 MByte/s]

Oh I wouldn't doubt it :)

  Luis

Re: well working usb wlan stick

[Xose Vazquez Perez]

On Mon, Mar 16, 2009 at 16:51, Alina Friedrichsen <x-alina@gmx.net> wrote:

> As far I have tested, the ar9170 driver works okay for G too, only Draft-N is not supported at the moment.

feldmann markus requested "well supported wlan stick". And they are
missing in distribution kernels.

ar9170(ZyDAS/Atheros) or rt2800usb(Ralink) should be fine, *when they
hit mainline*


regards,
-- 
Polycommander, Erkowit, Urquiola, Andros Patria, Cason, Aegean Sea,
Prestige, ...

Re: well working usb wlan stick

[Alina Friedrichsen]

Hello!

> feldmann markus requested "well supported wlan stick". And they are
> missing in distribution kernels.
>=20
> ar9170(ZyDAS/Atheros) or rt2800usb(Ralink) should be fine, *when they
> hit mainline*

=46or my proposes this driver works better than the others. rt73usb cou=
ldn't transmit packages in IBSS until a short time ago and with zd1211r=
w I get a kernel panic when I remove the stick while the network is run=
ning.

Conclusion: There are no USB sticks that are really "well supported" at=
 the moment.

Regards
Alina

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Re: well working usb wlan stick

[Johannes Berg]

[-- Attachment #1: Type: text/plain, Size: 242 bytes --]

On Mon, 2009-03-16 at 18:33 +0100, Alina Friedrichsen wrote:
> with zd1211rw I get a kernel panic when I remove the stick while the
> network is running.

Me too, were you ever able to capture it? It scrolls off my screen :(

johannes

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Re: well working usb wlan stick

[Alina Friedrichsen]

Hello Johannes!

> Me too, were you ever able to capture it? It scrolls off my screen :(

Try "vga=3D9" as kernel command line option. On i386 and amd64 you shou=
ld get a bigger text resolution with it.

Regards
Alina

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Re: well working usb wlan stick

[Johannes Berg]

[-- Attachment #1: Type: text/plain, Size: 322 bytes --]

On Mon, 2009-03-16 at 19:03 +0100, Alina Friedrichsen wrote:
> Hello Johannes!
> 
> > Me too, were you ever able to capture it? It scrolls off my screen :(
> 
> Try "vga=9" as kernel command line option. On i386 and amd64 you
> should get a bigger text resolution with it.

I already use vga=0x361 :)

johannes

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Re: zd1211rw panuc (was: well working usb wlan stick)

[Jouni Malinen]

On Mon, Mar 16, 2009 at 07:12:06PM +0100, Johannes Berg wrote:
> On Mon, 2009-03-16 at 19:03 +0100, Alina Friedrichsen wrote:

> > > Me too, were you ever able to capture it? It scrolls off my screen :(
> > 
> > Try "vga=9" as kernel command line option. On i386 and amd64 you
> > should get a bigger text resolution with it.
> 
> I already use vga=0x361 :)

Which is nothing compared to the buffer provided with netconsole.. ;-)

I would assume this skb_under_panic is the crash you are seeing. Though,
for some reason, I managed to get two interfaces (wlan2 and
wlan1_rename) when I first tried to reproduce the problem be ejecting
the device and then re-inserting it, so this could be something else,
too, or USB on that laptop does not always behave nicely.. ;-)

[  253.620359] usb 4-3: new high speed USB device using ehci_hcd and address 4
[  253.757698] usb 4-3: configuration #1 chosen from 1 choice
[  253.873681] usb 4-3: reset high speed USB device using ehci_hcd and address 4
[  254.036528] phy3: Selected rate control algorithm 'pid'
[  254.037063] zd1211rw 4-3:1.0: phy3
[  260.302033] usb 4-3: firmware: requesting zd1211/zd1211b_ub
[  260.317397] usb 4-3: firmware: requesting zd1211/zd1211b_uphr
[  260.371225] zd1211rw 4-3:1.0: firmware version 4725
[  260.411261] zd1211rw 4-3:1.0: zd1211b chip 0586:340f v4810 high 00-13-49 AL2230_RF pa0 g---S
[  260.438306] ADDRCONF(NETDEV_UP): wlan1_rename: link is not ready
[  278.345028] wlan1_rename: authenticate with AP 00:1a:9f:c9:60:96
[  278.349033] wlan1_rename: authenticated
[  278.349056] wlan1_rename: associate with AP 00:1a:9f:c9:60:96
[  278.357029] wlan1_rename: RX AssocResp from 00:1a:9f:c9:60:96 (capab=0x471 status=0 aid=1)
[  278.357029] wlan1_rename: associated
[  278.357029] phy3: Allocated STA 00:1a:9f:c9:60:96
[  278.357029] phy3: Inserted STA 00:1a:9f:c9:60:96
[  278.357029] wlan1_rename: switched to short barker preamble (BSSID=00:1a:9f:c9:60:96)
[  278.357029] wlan1_rename: switched to short slot time (BSSID=00:1a:9f:c9:60:96)
[  278.392780] ADDRCONF(NETDEV_CHANGE): wlan1_rename: link becomes ready
[  286.660675] usb 4-3: USB disconnect, address 4
[  286.682479] wlan1_rename: deauthenticating by local choice (reason=3)
[  286.683540] skb_under_panic: text:ffffffffa03936da len:59 put:11 head:ffff88012cf59400 data:ffff88012cf593fa tail:0x35 end:0x80 dev:wmaster2
[  286.683672] ------------[ cut here ]------------
[  286.683709] kernel BUG at net/core/skbuff.c:143!
[  286.683744] invalid opcode: 0000 [#1] SMP 
[  286.683829] last sysfs file: /sys/class/power_supply/BAT0/charge_full
[  286.683867] CPU 1 
[  286.683915] Modules linked in: aes_x86_64 aes_generic zd1211rw netconsole configfs af_packet ipv6 powernow_k8 cpufreq_powersave cpufreq_conservative cpufreq_ondemand freq_table cpufreq_userspace sbs sbshc fan container iptable_filter ip_tables x_tables sbp2 fuse dvb_usb_af9015 tda18271 af9013 dvb_pll snd_hda_codec_atihdmi mt2060 mxl5005s dvb_usb dvb_core qt1010 snd_hda_codec_idt arc4 snd_hda_intel ecb snd_hda_codec snd_pcm_oss snd_mixer_oss snd_seq_midi ath9k snd_pcm snd_rawmidi snd_seq_midi_event mac80211 snd_seq snd_timer snd_seq_device rfkill ohci1394 snd cfg80211 i2c_piix4 ehci_hcd sr_mod ohci_hcd ieee1394 r8169 mii soundcore led_class thermal pcspkr psmouse atiixp i2c_core cdrom sg usbcore snd_page_alloc video output rtc_cmos battery button ac processor thermal_sys shpchp pci_hotplug evdev
[  286.685066] Pid: 2133, comm: khubd Not tainted 2.6.29-rc7-wl #1 HP Pavilion dv5 Notebook PC
[  286.685066] RIP: 0010:[<ffffffff8043a3fa>]  [<ffffffff8043a3fa>] skb_push+0x7a/0x80
[  286.685066] RSP: 0018:ffff88013b1f9800  EFLAGS: 00010286
[  286.685066] RAX: 0000000000000093 RBX: ffff880123407600 RCX: 0000000000000001
[  286.685066] RDX: ffff8800a79a7000 RSI: 0000000000000001 RDI: ffffffff804cf808
[  286.685066] RBP: ffff88013b1f9820 R08: 0000000000000002 R09: 0000000000000001
[  286.685066] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000034
[  286.685066] R13: ffff880123407600 R14: ffff880123407638 R15: ffff880135ed1760
[  286.685066] FS:  00007fc515e73770(0000) GS:ffff88013f802a00(0000) knlGS:0000000000000000
[  286.685066] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[  286.685066] CR2: 00007fc514ea8098 CR3: 000000013e834000 CR4: 00000000000006e0
[  286.685066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  286.685066] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  286.685066] Process khubd (pid: 2133, threadinfo ffff88013b1f8000, task ffff88013b1ebb00)
[  286.685066] Stack:
[  286.685066]  0000000000000035 0000000000000080 ffff880123520000 ffff880135ed1760
[  286.685066]  ffff88013b1f9870 ffffffffa03936da ffff88013b1f9860 ffff880135ed0460
[  286.685066]  ffff88012cf59405 ffff880123407600 ffff880135ed0460 ffff88013b1f98d0
[  286.685066] Call Trace:
[  286.685066]  [<ffffffffa03936da>] zd_op_tx+0x4a/0x1f0 [zd1211rw]
[  286.685066]  [<ffffffffa01c4abd>] __ieee80211_tx+0x4d/0x140 [mac80211]
[  286.685066]  [<ffffffffa01c5c0f>] ieee80211_master_start_xmit+0x2ff/0x6d0 [mac80211]
[  286.685066]  [<ffffffffa01c5b97>] ?  ieee80211_master_start_xmit+0x287/0x6d0 [mac80211]
[  286.685392]  [<ffffffff80443a65>] dev_hard_start_xmit+0x285/0x300
[  286.685392]  [<ffffffff804577f6>] __qdisc_run+0x236/0x280
[  286.685392]  [<ffffffff80443f18>] dev_queue_xmit+0x308/0x620
[  286.685392]  [<ffffffff80443c62>] ? dev_queue_xmit+0x52/0x620
[  286.685392]  [<ffffffffa01c7a11>] ieee80211_tx_skb+0x61/0x70 [mac80211]
[  286.685392]  [<ffffffffa01b662f>] ieee80211_send_deauth_disassoc+0x12f/0x170 [mac80211]
[  286.685392]  [<ffffffffa01b6b7f>] ieee80211_set_disassoc+0x21f/0x2f0 [mac80211]
[  286.685392]  [<ffffffffa01b6960>] ? ieee80211_set_disassoc+0x0/0x2f0 [mac80211]
[  286.685392]  [<ffffffffa01b351d>] ?  __ieee80211_stop_tx_ba_session+0x4d/0xa0 [mac80211]
[  286.685392]  [<ffffffffa01b6d1d>] ieee80211_sta_deauthenticate+0x5d/0x70 [mac80211]
[  286.685392]  [<ffffffffa01ba57c>] ieee80211_stop+0x37c/0x630 [mac80211]
[  286.685392]  [<ffffffffa01ba279>] ? ieee80211_stop+0x79/0x630 [mac80211]
[  286.685392]  [<ffffffff804cf75f>] ? _spin_unlock_bh+0x2f/0x40
[  286.685392]  [<ffffffff8045711f>] ? dev_deactivate+0x18f/0x1d0
[  286.685392]  [<ffffffff8045713a>] ? dev_deactivate+0x1aa/0x1d0
[  286.685392]  [<ffffffff80444ae4>] dev_close+0x74/0xc0
[  286.685392]  [<ffffffff80444b75>] rollback_registered+0x45/0x250
[  286.685392]  [<ffffffff80444d9d>] unregister_netdevice+0x1d/0x70
[  286.685392]  [<ffffffffa01b9c9e>] ieee80211_remove_interfaces+0x7e/0xc0 [mac80211]
[  286.685392]  [<ffffffffa01ac0c1>] ieee80211_unregister_hw+0x31/0xf0 [mac80211]
[  286.685392]  [<ffffffffa0396e50>] disconnect+0x30/0x80 [zd1211rw]
[  286.685392]  [<ffffffffa0084155>] usb_unbind_interface+0x65/0x170 [usbcore]
[  286.685392]  [<ffffffff803d96c8>] __device_release_driver+0x78/0xc0
[  286.685392]  [<ffffffff803d980b>] device_release_driver+0x2b/0x40
[  286.685392]  [<ffffffff803d8b3d>] bus_remove_device+0xbd/0x100
[  286.685392]  [<ffffffff803d6ec0>] device_del+0x130/0x190
[  286.685392]  [<ffffffffa0080e18>] usb_disable_device+0xa8/0x130 [usbcore]
[  286.685392]  [<ffffffffa007b9b3>] usb_disconnect+0xb3/0x130 [usbcore]
[  286.685392]  [<ffffffffa007c92f>] hub_thread+0x4cf/0x13d0 [usbcore]
[  286.685392]  [<ffffffff80264bed>] ? trace_hardirqs_on+0xd/0x10
[  286.685392]  [<ffffffff80254dd0>] ? autoremove_wake_function+0x0/0x40
[  286.685392]  [<ffffffffa007c460>] ? hub_thread+0x0/0x13d0 [usbcore]
[  286.685392]  [<ffffffff80254a29>] kthread+0x49/0x80
[  286.685392]  [<ffffffff8020cafa>] child_rip+0xa/0x20
[  286.685392]  [<ffffffff8020c4fc>] ? restore_args+0x0/0x30
[  286.685392]  [<ffffffff802549e0>] ? kthread+0x0/0x80
[  286.685392]  [<ffffffff8020caf0>] ? child_rip+0x0/0x20
[  286.685392] Code: 8b 57 68 48 89 44 24 10 8b 87 c8 00 00 00 48 89 44 24 08 8b bf c4 00 00 00 31 c0 48 89 3c 24 48 c7 c7 c8 e4 5d 80 e8 7a 1c 09 00 <0f> 0b eb fe 66 90 55 89 f1 48 89 e5 48 83 ec 20 44 8b 4f 6c 4c 
[  286.685392] RIP  [<ffffffff8043a3fa>] skb_push+0x7a/0x80
[  286.685392]  RSP <ffff88013b1f9800>
[  286.688534] ---[ end trace c004fb5735d74053 ]---
[  286.688569] Kernel panic - not syncing: Fatal exception in interrupt

-- 
Jouni Malinen                                            PGP id EFC895FA

well working usb wlan stick

[feldmaus]

Hi All,

i am searching for a well supported usb wlan stick
which works with open source driver and supports wpa2.

Any hints ?

Regards Markus

Re: well working usb wlan stick

[Gábor Stefanik]

On Sun, Mar 15, 2009 at 8:22 PM, feldmaus <feldmann_markus@gmx.de> wrote:
> Hi All,
>
> i am searching for a well supported usb wlan stick
> which works with open source driver and supports wpa2.
>
> Any hints ?
>
> Regards Markus
>

I can recommend the Alfa AWUS036H, or any Ralink RT73.

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