* all css_drivers have the css_bus_type
*/
extern struct bus_type css_bus_type;
-extern struct css_driver io_subchannel_driver;
-extern int css_probe_device(struct subchannel_id);
-extern int css_sch_device_register(struct subchannel *);
extern void css_sch_device_unregister(struct subchannel *);
extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
extern int css_init_done;