SND_PCM_PLAYBACK_EMP(9)                      PCM API                      SND_PCM_PLAYBACK_EMP(9)



NAME
       snd_pcm_playback_empty - check whether the playback buffer is empty

SYNOPSIS
       int snd_pcm_playback_empty(struct snd_pcm_substream * substream);

ARGUMENTS
       substream
           the pcm substream instance

DESCRIPTION
       Checks whether the playback buffer is empty.

RETURN
       Non-zero if empty, or zero if not.

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