------
aplay -f cd -D default audio.wav
ALSA lib pcm_hw.c:324:(snd_pcm_hw_hw_params) SNDRV_PCM_IOCTL_HW_PARAMS failed: Device or resource busy
ALSA lib pcm_direct.c:712:(snd_pcm_direct_initialize_slave) unable to install hw params
ALSA lib pcm_dmix.c:827:(snd_pcm_dmix_open) unable to initialize slave
aplay: main:502: audio open error: Device or resource busy
hmm, it's wierd. -ENODEV ?
Old thread, but I missed it then. Indeed the dmix plugin doesn't play nicely with the hdsp.
The above give -ENODEV because if you don't specify 'channels 18' (for a multiface) in the dmix slave definition, the way the hw param settings is done tries to switch the card to double speed mode (there are less channels then, I guess it's closer to the 2 channels requested).
You should have the following in your logs :
cannot change speed mode (capture PID = -1, playback PID = 3888)
Now if you do specify 'channels 18' in the dmix slave definition, the error is as follows :
aplay: set_params:827: Sample format non available
I have 'format S32_LE' set in the dmix slave definition, but it doesn't seem to be taken into account.
Thomas
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