dvd_struct
dvd_struct ll_ds;
static int dvd_read_physical(struct cd_softc *, dvd_struct *);
static int dvd_read_copyright(struct cd_softc *, dvd_struct *);
static int dvd_read_disckey(struct cd_softc *, dvd_struct *);
static int dvd_read_bca(struct cd_softc *, dvd_struct *);
static int dvd_read_manufact(struct cd_softc *, dvd_struct *);
static int dvd_read_struct(struct cd_softc *, dvd_struct *);
dvd_read_physical(struct cd_softc *cd, dvd_struct *s)
dvd_read_copyright(struct cd_softc *cd, dvd_struct *s)
dvd_read_disckey(struct cd_softc *cd, dvd_struct *s)
dvd_read_bca(struct cd_softc *cd, dvd_struct *s)
dvd_read_manufact(struct cd_softc *cd, dvd_struct *s)
dvd_read_struct(struct cd_softc *cd, dvd_struct *s)
#define DVD_READ_STRUCT _IOWR('d', 0, dvd_struct)
#define DVD_WRITE_STRUCT _IOWR('d', 1, dvd_struct)