Lines Matching refs:mpu
305 static inline int verify_mpu401(const struct snd_mpu401 *mpu)
307 return ((inb(MPU401C(mpu)) & 0xc0) == 0x80);
313 static inline void initialise_mpu401(const struct snd_mpu401 *mpu)
315 outb(0, MPU401D(mpu));
794 static int mpu401_open(struct snd_mpu401 *mpu)
796 if (!verify_mpu401(mpu)) {
818 struct snd_mpu401 *mpu = rawmidi->private_data;
819 mpu->open_input = mpu401_open;
820 mpu->open_output = mpu401_open;
821 mpu->private_data = sscape;
823 initialise_mpu401(mpu);