snd_pcm_playback_rea(9)
NAME
snd_pcm_playback_ready - check whether the playback buffer is available
SYNOPSIS
int snd_pcm_playback_ready(struct snd_pcm_substream * substream);
ARGUMENTS
- substream
- the pcm substream instance
DESCRIPTION
Checks whether enough free space is available on the playback buffer.
Returns non-zero if available, or zero if not.