SND_PCM_PERIOD_ELAPS(9)                      PCM API                      SND_PCM_PERIOD_ELAPS(9)



NAME
       snd_pcm_period_elapsed - update the pcm status for the next period

SYNOPSIS
       void snd_pcm_period_elapsed(struct snd_pcm_substream * substream);

ARGUMENTS
       substream
           the pcm substream instance

DESCRIPTION
       This function is called from the interrupt handler when the PCM has processed the period
       size. It will update the current pointer, wake up sleepers, etc.

       Even if more than one periods have elapsed since the last call, you have to call this only
       once.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   SND_PCM_PERIOD_ELAPS(9)