Hi all,
I'm trying to get sound to work on an embedded board. The boot says ALSA is present and sound chip is present. So I try to open the device with


if ((snd_pcm_open (&pcm_handle, device_name, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK)) < 0)
{
....

The hardware manufacturer assures me the device is hw:0,0 so I set device to
const char *device_name = "hw:0,0";

This gives me
ALSA lib pcm.c 2143snd_pcm_open_nonupdate) unknown PCM hw:0,0

So I'm presuming the advice that I use hw:0,0 must be wrong? So I need to find a way of working out what the device id is. I've tried default, no effect, then tried the command asoundconf list, which returns an error. I'm using a min linux build on an embedded system (busybox) so is there a way to find my sound device.

Not sure but maybe by browsing and cat'ing file(s) in "/proc/asound" directory?

Thank but that doesn't work, it gives me the full name of the device rather than the device handle I need to pass to the function. That's my problem I don't know how that's found :s