snd_pcm_playback_data

Langue: en

Autres versions - même langue

Version: May 2009 (fedora - 06/07/09)

Section: 9 (Appels noyau Linux)

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.