Block Driver Entry Points

	int xxopen(dev_t *devp, int flag, int otyp, cred_t *credp);
 	int xxclose(dev_t dev, int flag, int otyp, cred_t *credp);
 	int xxstrategy(struct buf *bp);
 	int xxprint(dev_t dev, char *str);
 	int xxdump(dev_t dev, caddr_t addr, daddr_t blkno, int nblk);
 	int xxprop_op(dev_t dev, dev_info_t *dip, ddi_prop_op_t prop_op,
 				   int mod_flags, char *name, caddr_t valuep,
 				   int *length);

For information on block driver entry points, see Chapter 10, Drivers for Block Devices.