>>> + priv->gc.ngpio = 4; >> >> Shouldn't this be handled the other way round? IIRC there are two FTX >> device types with four pins, and one type where only one pin is >> accessible. > > There are 4 devices with 1 GPIO, 1 device with 2 GPIOs, 2 devices with 4 GPIOs, > and 1 device with 6 GPIOs. Source: http://www.ftdichip.com/FT-X.htm (2nd table) > Do you still want me turn this over? > Aaah, but those other devices are not UART bridges. I see what you mean now. The point for me when developing th original patch