snd_opl3_key_press  134 sound/drivers/opl3/opl3_seq.c 	.key_press =		snd_opl3_key_press,
snd_opl3_key_press   20 sound/drivers/opl3/opl3_voice.h void snd_opl3_key_press(void *p, int note, int vel, struct snd_midi_channel *chan);