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* [Bluez-users] BT headset doesn't work: SCO connection timeout
@ 2008-02-27 15:14 Andrea Bondavalli
  2008-02-27 15:52 ` Guillaume Bedot
  0 siblings, 1 reply; 5+ messages in thread
From: Andrea Bondavalli @ 2008-02-27 15:14 UTC (permalink / raw)
  To: Bluez-users


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Dear all,

 

I've got a linux kernel 2.4.20 with bluez libs/utils 3.23 on a ARM linux
platform.

 

I can successfully ping and pair my headset, but I am not able to
connect a SCO channel.

As soon as I try to connect a SCO channel (using the scotest utility,
and also other applications) the call always fails with a timeout error.

 

Here are some useful  traces:

 

# hciconfig
hci0:   Type: UART
        BD Address: 00:80:E1:00:AB:BA ACL MTU: 1021:4 SCO MTU: 64:0
        UP RUNNING PSCAN ISCAN
        RX bytes:10150 acl:204 sco:0 events:326 errors:0
        TX bytes:4097 acl:168 sco:0 commands:81 errors:0

 

# hciconfig hci0 revision

  STLC2500 R4.2 12102005 12:40:14 ZAV100012  A7
        HW Id= V440BAA

 

# hciconfig hci0 version
hci0:   Type: UART
        BD Address: 00:80:E1:00:AB:BA ACL MTU: 1021:4 SCO MTU: 64:0
        HCI Ver: 2.0 (0x3) HCI Rev: 0x402 LMP Ver: 2.0 (0x3) LMP Subver:
0x520
        Manufacturer: ST Microelectronics (48)  
--------------------------------------------------------------------

Ping output is OK:

 

# passkey-agent 0000 00:12:1C:BB:01:98 &
# l2ping 00:12:1C:BB:01:98
Passkey request for device 00:12:1C:BB:01:98
Passkey service has been released
Ping: 00:12:1C:BB:01:98 from 00:80:E1:00:AB:BA (data size 44) ...
0 bytes from 00:12:1C:BB:01:98 id 0 time 101.29ms
0 bytes from 00:12:1C:BB:01:98 id 1 time 48.42ms
0 bytes from 00:12:1C:BB:01:98 id 2 time 52.15ms
0 bytes from 00:12:1C:BB:01:98 id 3 time 36.95ms
0 bytes from 00:12:1C:BB:01:98 id 4 time 60.60ms
0 bytes from 00:12:1C:BB:01:98 id 5 time 43.05ms
0 bytes from 00:12:1C:BB:01:98 id 6 time 48.42ms
0 bytes from 00:12:1C:BB:01:98 id 7 time 96.63ms
0 bytes from 00:12:1C:BB:01:98 id 8 time 60.66ms
0 bytes from 00:12:1C:BB:01:98 id 9 time 62.69ms
0 bytes from 00:12:1C:BB:01:98 id 10 time 41.35ms
11 sent, 11 received, 0% loss

 

 

--------------------------------------------------------------------

scotest (from bluez-utils-3.23) output

 

# hcidump -X
HCI sniffer - Bluetooth packet analyzer ver 1.40
device: hci0 snap_len: 1028 filter: 0xffffffff

# passkey-agent 0000 00:12:1C:BB:01:98 &

# scotest -s 00:12:1C:BB:01:98 &

 

< HCI Command: Create Connection (0x01|0x0005) plen 13
  0000: 98 01 bb 1c 12 00 18 cc  02 00 00 00 01           .............
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 01 05 04                                       ....
> HCI Event: Role Change (0x12) plen 8
  0000: 00 98 01 bb 1c 12 00 01                           ........
> HCI Event: Link Key Request (0x17) plen 6
  0000: 98 01 bb 1c 12 00                                 ......
< HCI Command: Link Key Request Negative Reply (0x01|0x000c) plen 6
  0000: 98 01 bb 1c 12 00                                 ......
> HCI Event: Command Complete (0x0e) plen 10
  0000: 01 0c 04 00 98 01 bb 1c  12 00                    ..........
> HCI Event: PIN Code Request (0x16) plen 6
  0000: 98 01 bb 1c 12 00                                 ......
Passkey request for device 00:12:1C:BB:01:98
< HCI Command: PIN Code Request Reply (0x01|0x000d) plen 23
  0000: 98 01 bb 1c 12 00 04 30  30 30 30 00 00 00 00 00
.......0000.....
  0010: 00 00 00 00 00 00 00                              .......
Passkey service has been released
> HCI Event: Command Complete (0x0e) plen 10
  0000: 01 0d 04 00 98 01 bb 1c  12 00                    ..........
> HCI Event: Link Key Notification (0x18) plen 23
  0000: 98 01 bb 1c 12 00 11 a5  89 24 9a 6a 5b d8 44 07
.........$.j[.D.
  0010: 3a e8 13 4e 0f 06 00                              :..N...
> HCI Event: Connect Complete (0x03) plen 11
  0000: 00 01 00 98 01 bb 1c 12  00 01 00                 ...........
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 02 00 00                                       ....
< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
  0000: 01 00 0f 00                                       ....
> HCI Event: Max Slots Change (0x1b) plen 3
  0000: 01 00 05                                          ...
> HCI Event: Command Complete (0x0e) plen 6
  0000: 02 0d 08 00 01 00                                 ......
< HCI Command: Add SCO Connection (0x01|0x0007) plen 4
  0000: 01 00 a0 00                                       ....
> HCI Event: Command Complete (0x0e) plen 4
  0000: 02 07 04 01                                       ....
< HCI Command: Remote Name Request (0x01|0x0019) plen 10
  0000: 98 01 bb 1c 12 00 02 00  00 00                    ..........
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 01 19 04                                       ....
> HCI Event: Remote Name Req Complete (0x07) plen 255
  0000: 00 98 01 bb 1c 12 00 50  61 72 72 6f 74 20 4d 4b  .......Parrot
MK
  0010: 36 30 30 30 76 31 2e 30  31 63 00 00 00 00 00 00
6000v1.01c......
  0020: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  0030: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  0040: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  0050: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  0060: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  0070: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  0080: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  0090: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  00a0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  00b0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  00c0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  00d0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  00e0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
................
  00f0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00
...............
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 02 00 00                                       ....
< HCI Command: Read Remote Version Information (0x01|0x001d) plen 2
  0000: 01 00                                             ..
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 01 1d 04                                       ....
> HCI Event: Read Remote Ver Info Complete (0x0c) plen 8
  0000: 00 01 00 02 43 00 1c 01                           ....C...
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 02 00 00                                       ....
scotest[104]: Can't connect: Connection timed out (110)



It seems that the only reply to the Add SCO Connection command is an
unexpected Command Complete event and than the connect() system call
fails with a timeout (40sec) error.

As far as I know the only possible replies to the Add SCO Connection
command should be the Command Status event and the Command Complete
event.

 

Have you ever experienced this problem ? Any hints ?

 

Thank you a lot in advance,

Andrea Bondavalli

 

 


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^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: [Bluez-users] BT headset doesn't work: SCO connection timeout
@ 2008-02-28  3:24 pramod gurav
  2008-02-28 11:37 ` Guillaume Bedot
  0 siblings, 1 reply; 5+ messages in thread
From: pramod gurav @ 2008-02-28  3:24 UTC (permalink / raw)
  To: BlueZ users


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Hi andrea
Same problem used to occur with me.
My hciconfig also used to show this sco mtu 
SCO MTU: 64:0
whereas others on the list it was something SCO MTU: 64:8.
So i changed my dongle. and it simply worked.
I bought one new BT dongle which clamed it supports HS audio Gtaeway.
It is a product of ENTER multimedia.
this is it.
[root@localhost Pramod]# /usr/local/sbin/hciconfig -a
hci0:   Type: USB
        BD Address: 11:11:11:11:11:11 ACL MTU: 678:8 SCO MTU: 48:10
        UP RUNNING PSCAN ISCAN
        RX bytes:10283222 acl:386 sco:201151 events:719 errors:0
        TX bytes:10319322 acl:347 sco:202172 commands:192 errors:0
        Features: 0xbf 0xfe 0x8d 0x78 0x08 0x18 0x00 0x00
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: 'BlueZ (0)'
        Class: 0x080100
        Service Classes: Capturing
        Device Class: Computer, Uncategorized
        HCI Ver: 1.2 (0x2) HCI Rev: 0x1fe LMP Ver: 1.2 (0x2) LMP Subver: 0x1fe
        Manufacturer: Integrated System Solution Corp. (57)

I tried all option from list about sco but they never worked.
You too can try them. But before that try replacing your BT dongle.
It will save your time.


Thanks and Best regards

Pramod

----- Original Message ----
From: Andrea Bondavalli <Andrea.Bondavalli@qtm.it>
To: Bluez-users@lists.sourceforge.net
Sent: Wednesday, 27 February, 2008 8:44:09 PM
Subject: [Bluez-users] BT headset doesn't work: SCO connection timeout

    
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Dear all,
   
 I’ve got a linux kernel 2.4.20 with bluez
libs/utils 3.23 on a ARM linux platform.
   
 I can successfully ping and pair my headset, but I am
not able to connect a SCO channel.
 As soon as I try to connect a SCO channel (using the
scotest utility, and also other applications) the call always fails with a timeout
error.
   
 Here are some useful  traces:
   
 # hciconfig
hci0:   Type: UART
        BD Address: 00:80:E1:00:AB:BA ACLMTU: 1021:4 SCO MTU: 64:0
        UP RUNNING PSCAN ISCAN
        RX bytes:10150 acl:204 sco:0events:326 errors:0
        TX bytes:4097 acl:168 sco:0commands:81 errors:0
   
 # hciconfig hci0
revision
   STLC2500 R4.212102005 12:40:14 ZAV100012  A7
        HW Id= V440BAA
   
 # hciconfig hci0
version
hci0:   Type: UART
        BD Address: 00:80:E1:00:AB:BA ACLMTU: 1021:4 SCO MTU: 64:0
        HCI Ver: 2.0 (0x3) HCI Rev: 0x402LMP Ver: 2.0 (0x3) LMP Subver: 0x520
        Manufacturer: ST Microelectronics(48)  
--------------------------------------------------------------------
 Ping
output is OK:
   
 # passkey-agent0000 00:12:1C:BB:01:98 &
# l2ping 00:12:1C:BB:01:98
Passkey request for device 00:12:1C:BB:01:98
Passkey service has been released
 Ping : 00:12:1C:BB:01:98 from 00:80:E1:00:AB:BA(data size 44) ...
0 bytes from 00:12:1C:BB:01:98 id 0 time 101.29ms
0 bytes from 00:12:1C:BB:01:98 id 1 time 48.42ms
0 bytes from 00:12:1C:BB:01:98 id 2 time 52.15ms
0 bytes from 00:12:1C:BB:01:98 id 3 time 36.95ms
0 bytes from 00:12:1C:BB:01:98 id 4 time 60.60ms
0 bytes from 00:12:1C:BB:01:98 id 5 time 43.05ms
0 bytes from 00:12:1C:BB:01:98 id 6 time 48.42ms
0 bytes from 00:12:1C:BB:01:98 id 7 time 96.63ms
0 bytes from 00:12:1C:BB:01:98 id 8 time 60.66ms
0 bytes from 00:12:1C:BB:01:98 id 9 time 62.69ms
0 bytes from 00:12:1C:BB:01:98 id 10 time 41.35ms
11 sent, 11 received, 0% loss
   
   
 --------------------------------------------------------------------
 scotest (from bluez-utils-3.23) output
   
 # hcidump -X
HCI sniffer - Bluetooth packet analyzer ver 1.40
device: hci0 snap_len: 1028 filter: 0xffffffff
 # passkey-agent
0000 00:12:1C:BB:01:98 &
 # scotest -s
00:12:1C:BB:01:98 &
  
 < HCI Command: Create Connection (0x01|0x0005)plen 13
  0000: 98 01 bb 1c 12 00 18 cc  02 00 00 0001           .............
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 01 0504                                      ....
> HCI Event: Role Change (0x12) plen 8
  0000: 00 98 01 bb 1c 12 0001                          ........
> HCI Event: Link Key Request (0x17) plen 6
  0000: 98 01 bb 1c 1200                                ......
< HCI Command: Link Key Request Negative Reply (0x01|0x000c) plen 6
  0000: 98 01 bb 1c 1200                                ......
> HCI Event: Command Complete (0x0e) plen 10
  0000: 01 0c 04 00 98 01 bb 1c  1200                   ..........
> HCI Event: PIN Code Request (0x16) plen 6
  0000: 98 01 bb 1c 1200                                ......
Passkey request for device 00:12:1C:BB:01:98
< HCI Command: PIN Code Request Reply (0x01|0x000d) plen 23
  0000: 98 01 bb 1c 12 00 04 30  30 30 30 00 00 00 00 00 .......0000.....
  0010: 00 00 00 00 00 0000                             .......
Passkey service has been released
> HCI Event: Command Complete (0x0e) plen 10
  0000: 01 0d 04 00 98 01 bb 1c  1200                   ..........
> HCI Event: Link Key Notification (0x18) plen 23
  0000: 98 01 bb 1c 12 00 11 a5  89 24 9a 6a 5b d8 44 07 .........$.j[.D.
  0010: 3a e8 13 4e 0f 0600                             :..N...
> HCI Event: Connect Complete (0x03) plen 11
  0000: 00 01 00 98 01 bb 1c 12  00 0100                ...........
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 02 0000                                      ....
< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
  0000: 01 00 0f 00                                      ....
> HCI Event: Max Slots Change (0x1b) plen 3
  0000: 01 0005                                         ...
> HCI Event: Command Complete (0x0e) plen 6
  0000: 02 0d 08 00 0100                                .......
< HCI Command: Add SCO Connection(0x01|0x0007) plen 4
  0000: 01 00 a000                                      ....
> HCI Event: Command Complete (0x0e) plen 4
  0000: 02 07 0401                                      ....
< HCI Command: Remote Name Request (0x01|0x0019) plen 10
  0000: 98 01 bb 1c 12 00 02 00  00 00                   ..........
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 01 1904                                      ....
> HCI Event: Remote Name Req Complete (0x07) plen 255
  0000: 00 98 01 bb 1c 12 00 50  61 72 72 6f 74 20 4d 4b  .......ParrotMK
  0010: 36 30 30 30 76 31 2e 30  31 63 00 00 00 00 00 00 6000v1.01c.......
  0020: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  0030: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  0040: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  0050: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  0060: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  0070: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  0080: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  0090: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  00a0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  00b0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  00c0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  00d0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  00e0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 .................
  00f0: 00 00 00 00 00 00 00 00  00 00 00 00 00 0000     ................
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 02 0000                                      ....
< HCI Command: Read Remote Version Information (0x01|0x001d) plen 2
  0000: 0100                                            ..
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 01 1d04                                      ....
> HCI Event: Read Remote Ver Info Complete (0x0c) plen 8
  0000: 00 01 00 02 43 00 1c01                          ....C...
> HCI Event: Command Status (0x0f) plen 4
  0000: 00 02 0000                                      ....
scotest[104]: Can't connect: Connection timed
out (110)


 It seems that the only reply to the Add SCO
Connection command is an unexpected Command Complete event and than the
connect() system call fails with a timeout (40sec) error.
 As far as I know the only possible replies to the Add
SCO Connection  command should be the Command Status event and the Command Complete
event.
   
 Have you ever experienced this problem ? Any hints ?
   
 Thank you a lot in advance,
 Andrea Bondavalli
   
   
 


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^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2008-02-28 11:37 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-02-27 15:14 [Bluez-users] BT headset doesn't work: SCO connection timeout Andrea Bondavalli
2008-02-27 15:52 ` Guillaume Bedot
2008-02-27 16:48   ` Guillaume Bedot
  -- strict thread matches above, loose matches on Subject: below --
2008-02-28  3:24 pramod gurav
2008-02-28 11:37 ` Guillaume Bedot

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