[alsa-devel] Is there a function I can call from my ISR to tell ALSA to abort playback?
perex at perex.cz
Thu Nov 15 09:34:05 CET 2007
On Wed, 14 Nov 2007, Timur Tabi wrote:
> In my ISR, I call snd_pcm_period_elapsed() to tell it that a period has
> I can also detect if playback has aborted for some reason (e.g. DMA
> controller has died). Is there a function I can call in my ISR to tell
> ALSA to abort playback or capture?
Yes, call snd_pcm_stop() function. The call must be protected with
snd_pcm_stream_lock... See to i2c/other/ak4117.c for an example.
Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
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