Anyone out there know a good technique for getting an enumeration of all
available PCM devices? (This is using ALSA-0.9.0). Currently, I'm doing
something like:
for(i=0;i<MAX_CARDS;i++) {
for(j=0;j<MAX_DEVS;j++) {
sprintf(device,"plughw:%d,%d",i,j);
if(snd_pcm_open(&handle,device,SND_PCM_PLAYBACK,0)==0) {
printf("%s exists\n",device);
snd_pcm_close(handle);
}
}
}
This works, but alsa-lib sprews messages out on stderr for every call to
snd_pcm_open that fails. UGLY! There's got to be a better way. Or is there
a way to tell alsa-lib to suppress error messages to stderr?
Any ideas?
Cheers!
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