lsmod
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lsmod got a reaction from DevDrake in WiringPi can't work for H5 CPU (OrangePi PC 2)
The question remains why PA20 cannot be used?
# echo 20 > /sys/class/gpio/export -bash: echo: Schreibfehler: Das Gerät oder die Ressource ist belegt. # cat /sys/kernel/debug/gpio gpiochip1: GPIOs 0-223, parent: platform/1c20800.pinctrl, 1c20800.pinctrl: gpio-10 ( |sysfs ) out hi gpio-20 ( |orangepi:red:status ) out lo I should take the time to test the other ways to access the GPIO ...