text: #ifndef _BDEV_TYPE_H
  #define _BDEV_TYPE_H
  
  typedef struct {
    bdev_id_t		id;		/* call ID */
    dev_t			dev;		/* target device number */
    message		msg;		/* request message */
    bdev_callback_t	callback;	/* callback function */
    bdev_param_t		param;		/* callback parameter */
    int			driver_tries;	/* times retried on driver restarts */
    int			transfer_tries;	/* times retried on transfer errors */
    iovec_t		*vec;		/* original vector */
    iovec_s_t		gvec[1];	/* grant vector */
  } bdev_call_t;
  
  #endif /* _BDEV_TYPE_H */
  