Re: [Bluez-devel] Mobidick BDU33A + SCO

[Warp <warp@adygtelecom.com>]

Hi, all.

I try lokalize problem and i find SIGSEGV into function
hci_usb_send_frame (hci_usb.c) structure skb has invalid pointer! Some
times adapter reinit or kernel going to Ooops... Next i try dont send
packets only receive and problem has gone. Look like problem in write
stream only. I use O_NONBLOCK streams.

Any comments?

Best Regards,
 Warp.




On Thu, 2006-08-03 at 16:22, Warp wrote:
> Hi,
> 
> I have problem with SCO link over Mobidick BDU33A , after 1-3 minutes
> established connection adapter may restart. 
> My configuration:
> 
> hciconfig hci0 -a
> hci0:   Type: USB
>         BD Address: xx:xx:xx:xx:xx:xx ACL MTU: 384:8 SCO MTU: 64:8
>         UP RUNNING PSCAN ISCAN
>         RX bytes:101 acl:0 sco:0 events:13 errors:0
>         TX bytes:300 acl:0 sco:0 commands:13 errors:0
>         Features: 0xff 0xff 0x8f 0xfe 0x9b 0xf9 0x00 0x80
>         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: 0x200404
>         Service Classes: Audio
>         Device Class: Audio/Video, Device conforms to the Headset
> profile
>         HCI Ver: 2.0 (0x3) HCI Rev: 0x6e6 LMP Ver: 2.0 (0x3) LMP Subver:
> 0x6e6
>         Manufacturer: Cambridge Silicon Radio (10)
> 
> # hciconfig hci0 revision
> hci0:   Type: USB
>         BD Address: xx:xx:xx:xx:xx:xx ACL MTU: 384:8 SCO MTU: 64:8
>         Build 1766
>         Chip version: BlueCore4-External
>         Max key size: 56 bit
>         SCO mapping:  HCI
> 
> # hciconfig hci0 voice
> hci0:   Type: USB
>         BD Address: xx:xx:xx:xx:xx:xx ACL MTU: 384:8 SCO MTU: 64:8
>         Voice setting: 0x0060 (Default Condition)
>         Input Coding: Linear
>         Input Data Format: 2's complement
>         Input Sample Size: 16 bit
>         # of bits padding at MSB: 0
>         Air Coding Format: CVSD
> 
> 
> Kernel 2.6.17.7 with patch from bluez.org
> 
> Latest libs & utils.
> 
> Howto fix this problem?
> 
> Best Reagrds,
>  Warp.
> 
> 
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