CCBDISP_WAIT
send_pdu(ccb, pdu, CCBDISP_WAIT, PDUDISP_FREE);
send_pdu(ccb, ppdu, (wait) ? CCBDISP_WAIT : CCBDISP_FREE, PDUDISP_FREE);
send_pdu(ccb, ppdu, (xs) ? CCBDISP_SCSIPI : CCBDISP_WAIT, PDUDISP_FREE);
send_command(ccb, CCBDISP_WAIT, TRUE, immed);
while (ccb->ccb_disp == CCBDISP_WAIT) {
send_pdu(ccb, pdu, CCBDISP_WAIT, PDUDISP_WAIT);
if (disp == CCBDISP_WAIT)
case CCBDISP_WAIT: