USBSER_DS_BREAK_CTL
(void) USBSER_DS_BREAK_CTL(pp, DS_OFF);
if (USBSER_DS_BREAK_CTL(pp, DS_ON) != USB_SUCCESS) {
if (USBSER_DS_BREAK_CTL(pp, DS_ON) != USB_SUCCESS)
if (USBSER_DS_BREAK_CTL(pp, DS_OFF) != USB_SUCCESS)
rval = USBSER_DS_BREAK_CTL(pp, DS_ON);
(void) USBSER_DS_BREAK_CTL(pp, DS_OFF);