A straightforward library to interface with the NVIDIA Jetson TX1 Development Kit GPIO pins.
Based on Software by RidgeRun https://developer.ridgerun.com/wiki/index.php/Gpio-int-test.c
and ideas from Derek Malloy Copyright (c) 2012 https://github.com/derekmolloy/beaglebone
exampleGPIApp.cpp describes a simple usage case using a tactile button and LED as input and output.