Re: Alsa-lib problem

[Lee Revell <rlrevell@joe-job.com>]

On Tue, 2005-08-09 at 17:57 -0400, Nambiar, Anil wrote:
> Hi,
> 
>             I am developing ALSA based sound driver for our arm based
> soc. The driver is built as part of the kernel rather than as a
> loadable module. If I run a simple wave player which has OSS based
> interface, it works fine. Even mplayer works fine in OSS emulation
> mode. But if I run any native alsa based player it gives error opening
> the device. For eg: running 'aplay -D default demo.wav" give the
> following error: 
> 
> ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM default
> 
> aplay: main:533: audio open error: No such file or directory

It looks like alsa-lib is not finding the default PCM config for your
chip.  Someone else developing a driver for ARM reported the same
problem.

Try stracing the aplay process, you will see alsa-lib trying to open the
various config files ~/.asoundrc, /etc/asound.conf, and (most
important) /usr/share/alsa/*, and compare the results to what you get
when you strace aplay on a known good driver like snd-intel8x0.

Lee



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