At Thu, 23 Aug 2007 11:44:56 -0700, stan wrote:
Hi,
I am unable to use plughw:0,0 as a device string while calling err = snd_pcm_open (&alsa_dev, hw_from_default, SND_PCM_STREAM_PLAYBACK, 0);
The same call works with hw_from_default == 'default', but fails when it is 'plughw:0,0'. The error is cannot open audio device "plughw:0,0" (Device or resource busy)
Maybe the devce is really in use? Try "fuser /dev/snd/*"
I am using the latest snapshot of alsa-lib, alsa-lib20070821. I tried debugging but I cannot trace through the macros. As near as I can tell there have been no changes to alsa.conf, and this worked just fine before the latest upgrade alsa package alsa-lib.1.0.14-3
Is this a deliberate change in alsa that is known about, and is there a way to still get the functionality?
The old library binary might still remain. Some distros install libasound in /lib (or /lib64), instead of /usr/lib (or /usr/lib64).
Takashi