932 struct cdrom_device_info {  struct
934 	struct cdrom_device_info *next; /* next device_info for this major */  argument
954 	int (*exit)(struct cdrom_device_info *);  argument
960 	int (*open) (struct cdrom_device_info *, int);  argument
961 	void (*release) (struct cdrom_device_info *);
962 	int (*drive_status) (struct cdrom_device_info *, int);
963 	int (*media_changed) (struct cdrom_device_info *, int);
964 	int (*tray_move) (struct cdrom_device_info *, int);
965 	int (*lock_door) (struct cdrom_device_info *, int);
966 	int (*select_speed) (struct cdrom_device_info *, int);
967 	int (*select_disc) (struct cdrom_device_info *, int);
968 	int (*get_last_session) (struct cdrom_device_info *,
970 	int (*get_mcn) (struct cdrom_device_info *,
973 	int (*reset) (struct cdrom_device_info *);
975 	int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
981 	int (*generic_packet) (struct cdrom_device_info *,
986 extern int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip,
988 extern int cdrom_release(struct cdrom_device_info *cdi, struct file *fp);
989 extern int cdrom_ioctl(struct file *file, struct cdrom_device_info *cdi,
991 extern int cdrom_media_changed(struct cdrom_device_info *);
993 extern int register_cdrom(struct cdrom_device_info *cdi);
994 extern int unregister_cdrom(struct cdrom_device_info *cdi);
1004 extern int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written);
1005 extern int cdrom_number_of_slots(struct cdrom_device_info *cdi);
1006 extern int cdrom_mode_select(struct cdrom_device_info *cdi,
1008 extern int cdrom_mode_sense(struct cdrom_device_info *cdi,
1185 extern int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med);