snd_rawmidi_drain_input  180 include/sound/rawmidi.h int snd_rawmidi_drain_input(struct snd_rawmidi_substream *substream);
snd_rawmidi_drain_input  643 sound/core/rawmidi.c 	snd_rawmidi_drain_input(substream);
snd_rawmidi_drain_input  787 sound/core/rawmidi.c 			return snd_rawmidi_drain_input(rfile->input);