open_output        71 include/sound/mpu401.h 	int (*open_output) (struct snd_mpu401 * mpu);
open_output       296 sound/drivers/mpu401/mpu401_uart.c 	if (mpu->open_output && (err = mpu->open_output(mpu)) < 0)
open_output       307 sound/drivers/mpu401/mpu401_uart.c 	if (mpu->open_output && mpu->close_output)
open_output       820 sound/isa/sscape.c 		mpu->open_output = mpu401_open;