Re: [Bluez-users] Re: Motorola HS-850 and btsco

[Brad Midgley <bmidgley@xmission.com>]

Jan,

I have seen alsamixer fail to grok our audio device. I don't think we're 
doing anything wrong though. I know gnome-volume-control can deal with 
it properly.

I think the reason you haven't gotten a reply is because everything 
you've showed us looks right.

Brad

Jan Rychter wrote:
> I wrote:
> 
>>I've been trying to get my Motorola HS-850 headset to work with btsco,
>>using two different USB adapters.
>>
>>It seems I'm getting quite far: I can pair the devices, btsco can
>>connect, and it can detect button presses:
>>
>># btsco -v 00:07:A4:5C:39:F7 1
>>btsco v0.4
>>Device is 1:0
>>Voice setting: 0x0060
>>RFCOMM channel 1 connected
>>recieved AT+CKPD=200
>>recieved AT+CKPD=200
>>
>>The headset reports as:
>>
>># hcitool info 00:07:A4:5C:39:F7
>>Requesting information ...
>>        BD Address:  00:07:A4:5C:39:F7
>>        Device Name: Motorola HS850
>>        LMP Version: 1.2 (0x2) LMP Subversion: 0x5dd
>>        Manufacturer: Cambridge Silicon Radio (10)
>>        Features: 0xfc 0xff 0x8b 0xf8 0x18 0x18 0x00 0x80
>>                <encryption> <slot offset> <timing accuracy> <role switch> 
>>                <hold mode> <sniff mode> <park state> <RSSI> <channel quality> 
>>                <SCO link> <HV2 packets> <HV3 packets> <u-law log> <A-law log> 
>>                <CVSD> <paging scheme> <transparent SCO> <broadcast encrypt> 
>>                <enhanced iscan> <interlaced iscan> <interlaced pscan> 
>>                <inquiry with RSSI> <extended SCO> <AFH cap. slave> 
>>                <AFH class. slave> <AFH cap. master> <AFH class. master> 
>>                <extended features> 
>>
>>The problem is that I don't get audio. When I try audio playback or
>>recording, I do get a static hiss in the headset and lots of SCO packets
>>appear on the link (checked with hcidump).
>>
>>I also checked that the volumes are set to max using "alsamixer -c1 -V
>>all". Tried aplay/arecord, sox, xmms with output to plughw:Headset, all
>>produce exactly the same effect.
>>
>>Kernel 2.6.11, two different USB dongles (one BCM2033-based, one an
>>IOGear GBU-311 (thanks, Marcel!)). Same results.
>>
>>What else there is to try?
> 
> 
> [...several days of silence...]
> 
> Any other information I can provide, or should I just give up?
> 
> thanks,
> --J.
> 
> 
> 
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