UCDC_BREAK_OFF
USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
uint8_t brk = onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF;