scsi_scan_bus
work_ccb->ccb_h.cbfcnp = scsi_scan_bus;
request_ccb->ccb_h.cbfcnp = scsi_scan_bus;
request_ccb->ccb_h.cbfcnp = scsi_scan_bus;
scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb);
static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb);