[alsa-devel] Why is ALSA sending STOP/START commands to my driver during MP3 playback?
timur at freescale.com
Fri Sep 7 17:09:38 CEST 2007
I'm developing an ASoC driver, and when I play an MP3 with mpg123, my driver's
trigger() function is called with the SNDRV_PCM_TRIGGER_STOP command and then
is immediately called again with SNDRV_PCM_TRIGGER_START.
Can someone tell me why ALSA would do this?
This only happens when playing an MP3. When I use aplay to play a regular
Wave file, I don't see this behavior.
My driver does not have the SNDRV_PCM_INFO_PAUSE bit set, because I haven't
gotten around to testing that capability. I suspect that if I did have that
bit set, I would be getting SNDRV_PCM_TRIGGER_PAUSE_PUSH and
SNDRV_PCM_TRIGGER_PAUSE_RELEASE calls instead.
Linux Kernel Developer @ Freescale
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