GPIO inputs and outputs

[Electro-Poleas]

I have a simple question, it probably awnsers itself but I want to be clear about it.

Are all the GPIO pins (no power pins) able to be set as inputs or outputs? Despite of the labeling, such as TXD, RXD, CS0, CS1...

[joan]

Yes.

[hampi]

This might be useful for the pullups and pulldowns using device tree:

https://github.com/fivdi/onoff/wiki/Ena ... spberry-Pi