NVIDIA Jetson TX1 J26 Header Pinout

Does anyone know where I can find NVIDIA Jetson TX1 J26 Header Pinout. I have looked online and have not been able to find it. Also how do I get access to these GPIO pin.

This URL contains many documents (a login is probably required, but is free):
https://developer.nvidia.com/embedded/downloads

On the left, select “Jetson TX1” under product. On the right, find “Jetson TX1 Developer Kit Carrier Board Design Files”. Download this and J26 is described in the OrCAD schematics (it’s actually PDF format).