__SIOW
#define SNDCTL_DSP_SETTRIGGER __SIOW ('P',16, int)
#define SNDCTL_DSP_PROFILE __SIOW ('P', 23, int) /* OBSOLETE */
#define SNDCTL_DSP_SYNCSTART __SIOW ('P', 29, int)
#define SNDCTL_DSP_COOKEDMODE __SIOW ('P', 30, int)
#define SNDCTL_DSP_LOW_WATER __SIOW ('P', 34, int)
#define SNDCTL_SEQ_PERCMODE __SIOW ('Q', 6, int)
#define SNDCTL_FM_LOAD_INSTR __SIOW ('Q', 7, struct sbi_instrument) /* Obsolete. Don't use!!!!!! */
#define SNDCTL_DSP_POLICY __SIOW('P', 45, int) /* See the manual */
#define SNDCTL_SEQ_TESTMIDI __SIOW ('Q', 8, int)
#define SNDCTL_SEQ_RESETSAMPLES __SIOW ('Q', 9, int)
#define SNDCTL_SEQ_THRESHOLD __SIOW ('Q',13, int)
#define SNDCTL_FM_4OP_ENABLE __SIOW ('Q',15, int) /* in=dev# */
#define SNDCTL_SEQ_OUTOFBAND __SIOW ('Q',18, struct seq_event_rec)
#define SNDCTL_TMR_METRONOME __SIOW ('T', 7, int)
#define SNDCTL_TMR_SELECT __SIOW ('T', 8, int)
#define SNDCTL_SETSONG __SIOW ('Y', 2, oss_longname_t)
#define SNDCTL_SETNAME __SIOW ('Y', 3, oss_longname_t)
#define SNDCTL_SETLABEL __SIOW ('Y', 4, oss_label_t)
#define SNDCTL_MIDI_SET_LATENCY __SIOW ('m', 9, int)