we remove gpio expanders,how can I do it?

We have customized the carrier board to remove gpio expanders, use tx2 gpio to control hdmi power and camera power, how do we modify the driver software?

hello webhack,

you may refer to [Jetson TX2 Platform Adaptation and Bring-Up Guide]
you’re able to access it via Jetson Download Center
thanks

Our carrier’s usb1 can’t work, USB_VBUS_EN1 is always low, usb1’s circuit is the same as p2597, whether we remove ina3221 affected?

hello webhack,

please check you’re using correct configuration.
could you please also refer to [USB Lane Mapping] chapter in Jetson TX2 Platform Adaptation and Bring-Up Guide
thanks

hi,JerryChang!
Thank you for your reply, I have solved this problem.