DS_OFF
(void) USBSER_DS_BREAK_CTL(pp, DS_OFF);
if (USBSER_DS_BREAK_CTL(pp, DS_OFF) != USB_SUCCESS)
if (USBSER_DS_LOOPBACK(pp, DS_OFF) == USB_SUCCESS)
(void) USBSER_DS_BREAK_CTL(pp, DS_OFF);
ASSERT(ctl == DS_ON || ctl == DS_OFF);
if ((ctl == DS_OFF) && is_break) {
ASSERT(ctl == DS_ON || ctl == DS_OFF);
} else if ((ctl == DS_OFF) && is_loop) {