USB_CDC_CONTROL_SIGNAL_STATE_DTR
control = (state & USB_CDC_CONTROL_SIGNAL_STATE_DTR) ? FTDI_SIO_SET_DTR_HIGH
fControlOut = enable ? USB_CDC_CONTROL_SIGNAL_STATE_DTR
(fControlOut & (USB_CDC_CONTROL_SIGNAL_STATE_DTR
uint8 bit = op == TTYSETDTR ? USB_CDC_CONTROL_SIGNAL_STATE_DTR
fControlOut = USB_CDC_CONTROL_SIGNAL_STATE_DTR
control |= (state & USB_CDC_CONTROL_SIGNAL_STATE_DTR) ? 1 : 0;
if (state & USB_CDC_CONTROL_SIGNAL_STATE_DTR)