GPIO initialization file path

At present, the initialization value of gpio389 is 1. I want to know the file path and code location of the initialization of gpio389.

hello 1481453418,

please refer to http://www.jetsonhacks.com/nvidia-jetson-tx2-j21-header-pinout/
also, please download [NVIDIA Tegra Linux Driver Package] and checking the [Release 28.2 Development Guide]–>[TX2 Configuring Pinmux GPIO and PAD] for more details.
thanks

I want to change the default value of gpio389 to 0. How can I modify it?What are the specific steps?Where is the path to operation?