SND_PCM_PLAYBACK_DAT
Section: Sound Devices (9)
Updated: February 2011
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NAME
snd_pcm_playback_data - check whether any data exists on the playback buffer
SYNOPSIS
-
int snd_pcm_playback_data(struct snd_pcm_substream * substream);
ARGUMENTS
substream
-
- the pcm substream instance
DESCRIPTION
Checks whether any data exists on the playback buffer. If stop_threshold is bigger or equal to boundary, then this function returns always non-zero.
Returns non-zero if exists, or zero if not.
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