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.
Returns non-zero if empty, or zero if not.