Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug

NAME

       snd_pcm_period_elapsed - update the pcm status for the next period

SYNOPSIS

       void snd_pcm_period_elapsed  (snd_pcm_substream_t * 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,  set  up
       the tick, wake up sleepers, etc.

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