Re: [alsa-devel] Is there a function I can call from my ISR to tell ALSA to abort playback?

On Wed, 14 Nov 2007, Timur Tabi wrote:

In my ISR, I call snd_pcm_period_elapsed() to tell it that a period has elapsed. 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

----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project