Re: [Gumstix-users] Configuring gumstix for audio with roboaudio

[Mark Y. <mya...@gm...>]

Craig,

If I recompile the filesystem enabling the following packages: aumix and
bplay will i simply be able to use them when I flash the new file system. I
suppose getting nitty gritty, my real question is about how one uses the
menuconfig in the buildroot.

Mark


On 6/20/06, Engel, Nick <nic...@do...> wrote:
>
>
> > You'll want to use the OSS emulation layer though, which is much,
> > much lighter weight than the ALSA userspace libraries & utils.
>
> Has anyone had success using native ALSA?  i.e. not using OSS emulation?
>
> I'm using the latest SVN build 1005 and can't get any apps to open the
> ALSA device.
>
> Using http://alsa.opensrc.org/faq/#FAQ007 as an 'Is ALSA working?'
> reference, I find that the modules are correctly loaded and /dev/snd and
> /proc/asound all appear to list and say the right things.
>
> amixer outputs:
> ALSA lib control.c:817:(snd_ctl_open_noupdate) Invalid CTL default
> amixer: Mixer attach default error: No such file or directory
>
> aplay outputs:
> ALSA lib pcm.c:2099:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:547: audio open error: No such file or directory
>
> I'm wondering if the PXA2XX drivers do things a little differently.
> There is no /dev/snd/hw* like my PC.
>
> Both the kernel and userland libs are the same version (1.0.11rc2).
>
> I also figured I should be able to do something like this (as I'm
> assuming pcmC0d0c is a character device):
> # cat /dev/urandom > /dev/snd/pcmC0D0c
> It returns:
> cat: Write Error: Invalid argument
>
> Am I missing something?  Anyone have any ideas?
>
> Thanks,
> Nick
>
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