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 3.10 June 2014 SND_PCM_PERIOD_ELAPS(9)
