A ked to neni vadnym konektorom tak je to ID pinom, ktory podla normy ma byt not connected pre standardny USB kabel pre slave (ne OTG). Device ma pullup. Ked nieco skratuje ten pin na low, tak sa device prepne na USB host (OTG zariadenie). Tak to je podla normy. Co tam strkate vy netusim, ani kam to strkate.