From: Brad Midgley <bmidgley@xmission.com>
To: bluez-devel@lists.sourceforge.net
Subject: Re: [Bluez-devel] "playback drain error" with snd-bt-sco
Date: Thu, 25 Nov 2004 09:34:38 -0700 [thread overview]
Message-ID: <41A6099E.2080300@xmission.com> (raw)
In-Reply-To: <200411250023.28429.mailsp@sebastian-eichner.de>
Sebastian,
I'll second Marcel's suggestion you try a newer kernel. Maybe you
already have...
It's unfortunate that the module api is changing across *stable*
versions of the kernel. The reality is we don't have the volunteers
required to maintain for multiple kernels.
Brad
Sebastian Eichner wrote:
> Hi all,
>
> i would love to get my new Bluetooth headset (Bluetake BT420) running
> with linux. So i compiled and installed the alsa-bluetooth cvs code
> (btw: i had to add "-lsdp" to the libs in the Makefile to make it
> compile).
>
> I can load the kernel module and start btsco:
> /usr/local/bin/btsco 00:08:F4:30:03:71
> Device is 1:0
> Voice setting: 0x0060
> RFCOMM channel 5 connected
>
> But when i play a wav-file via aplay or play/dsp1, i do not hear
> anything but get an error message in the system log:
>
> Nov 25 00:12:34 linux kernel: snd-bt-sco: playback_open
> Nov 25 00:12:34 linux kernel: snd-bt-sco: prepare ok bps: 16000 size:
> 16002 count: 4000
> Nov 25 00:12:34 linux kernel: snd-bt-sco: playback_trigger 1
> Nov 25 00:12:34 linux kernel: snd-bt-sco: setting playback to bspcm
> Nov 25 00:12:44 linux kernel: ALSA sound/core/pcm_native.c:1316:
> playback drain error (DMA or IRQ trouble?)
> Nov 25 00:12:44 linux kernel: snd-bt-sco: playback_trigger 0
> Nov 25 00:12:44 linux kernel: snd-bt-sco: setting playback to NULL
>
>
> I am using kernel 2.6.5 from SuSE-linux, so i replaced the kalloc()
> statements with the old ones (found in cvs and did some merging).
> Compiled and loaded fine without any errors.
>
> Do you have an idea whats going wrong? Or doesnt it work with 2.6.5
> anymore at all?
>
> Thanks!
> Sebastian
>
>
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prev parent reply other threads:[~2004-11-25 16:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-24 23:23 [Bluez-devel] "playback drain error" with snd-bt-sco Sebastian Eichner
2004-11-25 2:51 ` Marcel Holtmann
2004-11-25 16:34 ` Brad Midgley [this message]
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