Calculate the memory offset for a specifc GPIO to be used with busybox memset

I am trying to find a way to do this but I cant find a pinmux.cfg file that seems to describe it. Maybe that was only for older SDKs?

If i use the excel tool it only outputs pin names and numbering which get compiled later so it is not useful in this case.

For example I am trying to figure out the memory address of gpio3 on the jetson orin nano.

Please refer to the document:
https://docs.nvidia.com/jetson/archives/r35.4.1/DeveloperGuide/text/HR/JetsonModuleAdaptationAndBringUp/JetsonOrinNxNanoSeries.html#changing-the-pinmux

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