1SND_PCM_PERIOD_ELAPS(9)             PCM API            SND_PCM_PERIOD_ELAPS(9)
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NAME

6       snd_pcm_period_elapsed - update the pcm status for the next period
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SYNOPSIS

9       void snd_pcm_period_elapsed(struct snd_pcm_substream * substream);
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ARGUMENTS

12       substream
13           the pcm substream instance
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DESCRIPTION

16       This function is called from the interrupt handler when the PCM has
17       processed the period size. It will update the current pointer, wake up
18       sleepers, etc.
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20       Even if more than one periods have elapsed since the last call, you
21       have to call this only once.
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24Kernel Hackers Manual 3.10         June 2019           SND_PCM_PERIOD_ELAPS(9)
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