`A LINUX CDROM standard`

David van Leeuwen david@tm.tno.nl Introduction Standardizing through another software level Open(kdev_t dev, int purpose) Release(kdev_t dev) Open_files(kdev_t dev) Drive_status(kdev_t dev) Disc_status(kdev_t dev) Media_changed (dev dev) Tray_move(kdev_t dev, int position) Lock_door(kdev_t dev, int lock) Select_speed (kdev_t dev, int speed ) Select_disc(kdev_t dev, int number) Get_last_session(kdev_t dev, struct cdrom_multisession*ms_info) Get_mcn(kdev_t dev, struct cdrom_mcn*mcn) Reset(kdev_tdev) Audio_ioctl (kdev_t dev, unsigned int cmd, void*arg) Dev_ioctl (kdev_t dev, unsigned int cmd, unsigned longI>arg) CDROM capabilities Options The need to know the purpose of opening And what about standards? The preferred strategy of open() Description of routines in cdrom.c struct file_operations cdrom_fops Int register_cdrom(int major, char*name, structI>cdrom_device_ops *cdo) Int unregister_cdrom(int major, char*name) Int cdrom_open(struct inode*ip, struct file*fp) Void cdrom_release(struct inode*ip, struct file*fp) Int cdrom_ioctl (struct inode*ip, struct file*fp, unsigned int cmd, unsigned long arg) Directly implemented ioctls Ioctls rooted through audio_ioctl () New ioctls in cdrom.c Device dependent iocts How to update your driver Thanks