snd_pcm_playback_data9
Check whether any data exists on the playback buffer
Usage
int snd_pcm_playback_data(struct
snd_pcm_substream
*
substream);
Arguments
substream
the pcm substream instance
Overview
Checks whether any data exists on the playback buffer.
Return
Non-zero if any data exists, or zero if not. If stop_threshold is bigger or equal to boundary, then this function returns always non-zero.
Releases
6 releases since Debian 4.0 (Etch); the text changed 5 times.