uhci_frame_before_eq
if (!uhci_frame_before_eq(next, frame)) {
else if (!uhci_frame_before_eq(next,
if (uhci_frame_before_eq(uhci->last_iso_frame + UHCI_NUMFRAMES,
if (uhci_frame_before_eq(uhci->cur_iso_frame, qh->iso_frame))
if (uhci_frame_before_eq(urb->start_frame, uhci->frame_number))