318 static inline int verify_mpu401(const struct snd_mpu401 *mpu)  in verify_mpu401()  argument
320 	return ((inb(MPU401C(mpu)) & 0xc0) == 0x80);  in verify_mpu401()
326 static inline void initialise_mpu401(const struct snd_mpu401 *mpu)  in initialise_mpu401()  argument
328 	outb(0, MPU401D(mpu));  in initialise_mpu401()
807 static int mpu401_open(struct snd_mpu401 *mpu)  in mpu401_open()  argument
809 	if (!verify_mpu401(mpu)) {  in mpu401_open()
831 		struct snd_mpu401 *mpu = rawmidi->private_data;  in create_mpu401()  local
832 		mpu->open_input = mpu401_open;  in create_mpu401()
833 		mpu->open_output = mpu401_open;  in create_mpu401()
834 		mpu->private_data = sscape;  in create_mpu401()
836 		initialise_mpu401(mpu);  in create_mpu401()