mixer_ioctl       118 dev/audio.c    int	mixer_ioctl(dev_t, u_long, caddr_t, int, struct proc *);
mixer_ioctl       707 dev/audio.c    		error = mixer_ioctl(dev, cmd, addr, flag, p);
mixer_ioctl      3118 dev/audio.c    		error = mixer_ioctl(MIXER_DEVICE,