Hi, I'd like to detect a button press on an (old) Soekris net5501 (running i386 6.1) where the button (push switch) is physically connected to a GPIO pin.
Is there a proper way for edge detection, i.e., finding out when the button is pressed without extensive polling via gpioctl in a loop? E.g. a wait_for_edge() function? All ideas or experience reports are welcome. Thanks! Best regards, Ingo

