Во даже функция така есть CyclePort (The effect of this function is the same as disconnecting then reconnecting the device from USB. Possible use of this function is situations where a fatal error has occurred and it is difficult, or not possible, http://www.ftdichip.com/Support/Documents/ProgramGuides/D2XX_Programmer%27s_Guide%28FT_000071%29.pdf to recover without unplugging and replugging the USB cable.)