#ifndef _SCSI_SCSI_DRIVER_H
  #define _SCSI_SCSI_DRIVER_H
  
  #include <linux/device.h>
  
  struct module;
  struct scsi_cmnd;

  struct scsi_device;
  struct request;
  struct request_queue;

  
  
  struct scsi_driver {
  	struct module		*owner;
  	struct device_driver	gendrv;

  	void (*rescan)(struct device *);

  	int (*done)(struct scsi_cmnd *);

  };
  #define to_scsi_driver(drv) \
  	container_of((drv), struct scsi_driver, gendrv)
  
  extern int scsi_register_driver(struct device_driver *);
  #define scsi_unregister_driver(drv) \
  	driver_unregister(drv);
  
  extern int scsi_register_interface(struct class_interface *);
  #define scsi_unregister_interface(intf) \
  	class_interface_unregister(intf)

  int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req);
  int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req);
  int scsi_prep_state_check(struct scsi_device *sdev, struct request *req);
  int scsi_prep_return(struct request_queue *q, struct request *req, int ret);

  int scsi_prep_fn(struct request_queue *, struct request *);

  #endif /* _SCSI_SCSI_DRIVER_H */