I’ve been looking for a relatively straight-forward way of changing the setting of the GPIOs. I’ve come across a bunch of different posts and sites that describe how to check for these, most of which is looking in files located in:
`
/sys/kernel/debug/pinctrl/44e10800.pinmux
`
This page does a good job of explaining what everything means (such as the hex format of the data in files in the directory above).
But could someone point me in the direction of a simple command-line way of changing these values? Like if I want to change the direction of a pin, I simply do this:
`
echo out > /sys/class/gpio/gpioNUM/direction
`
Which means I can just open that file as a file descriptor in C, C++, or any other language and write to it. Is there something similar to the above for the internal pullups/pulldowns?