Hi and thanks for your short instructions.

I tried it on a Oriange Pi PC Plus, but at the ent of compilation I get some warnings and the GPIO commands do not work.

GPIO Utility
[Compile] gpio.c
[Compile] readall.c
gpio.c: In function ‘doUsbP’:
gpio.c:944:25: warning: unused parameter ‘argc’ [-Wunused-parameter]
944 | static void doUsbP (int argc, char *argv [])
| ~~~~^~~~
gpio.c:944:37: warning: unused parameter ‘argv’ [-Wunused-parameter]
944 | static void doUsbP (int argc, char *argv [])
| ~~~~~~^~~~~~~
readall.c:1616:13: warning: ‘piPlusReadall’ defined but not used [-Wunused-function]
1616 | static void piPlusReadall (int model)
| ^~~~~~~~~~~~~
[Link]
[Install]
chown: warning: '.' should be ':': „root.root“

All Done.

NOTE: To compile programs with wiringPi, you need to add:
-lwiringPi
to your compile line(s) To use the Gertboard, MaxDetect, etc.
code (the devLib), you need to also add:
-lwiringPiDev
to your compile line(s).

pi@orangepipcplus:$ sudo gpio readall
wiringPiSetup: mmap (PWM) failed: Invalid argument
pi@orangepipcplus:$

Any ideas?

Hey,
just curious. You mentioned

⚠️❗ Delete all comments (lines starting with #) and all empty lines!

Why is this necessary? Did this cause trouble?

Cheers