snd_pcm_playback_data man page on OpenSuSE

snd_pcm_playback_data man page on OpenSuSE

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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
       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.

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
Kernel Hackers Manual 3.11	 November 2013	       SND_PCM_PLAYBACK_DAT(9)

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