other versions
- wheezy-backports 3.16.39-1+deb8u1~bpo70+1
- jessie 3.16.43-2
| SND_PCM_PLAYBACK_DAT(9) | Sound Devices | SND_PCM_PLAYBACK_DAT(9) |
NAME¶
snd_pcm_playback_data - check whether any data exists on the playback bufferSYNOPSIS¶
int
snd_pcm_playback_data(struct snd_pcm_substream * substream);
ARGUMENTS¶
substreamthe pcm substream instance
DESCRIPTION¶
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.COPYRIGHT¶
| February 2017 | Kernel Hackers Manual 3.16 |