ppriv_ptr0
scan_info = (ata_scan_bus_info *)work_ccb->ccb_h.ppriv_ptr0;
work_ccb->ccb_h.ppriv_ptr0 = scan_info;
#define saved_ccb_ptr ppriv_ptr0
#define io_ptr ppriv_ptr0
ccb->ccb_h.ppriv_ptr0 = periph;
work_ccb->ccb_h.ppriv_ptr0 = scan_info;
scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0;
request_ccb->ccb_h.ppriv_ptr0 = scan_info;
request_ccb->ccb_h.ppriv_ptr0 = scan_info;
#define ccb_buf ppriv_ptr0