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error when trying to monitor gpio events with `gpiomon gpiochip0 40` - `error waiting for events: No such device`

Krasi Georgiev

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trying to monitor a button press on GPIO19 which has an offset 40, but getting the error in the title.

Switched between kernels but made no difference.





After switching the kernel


Not sure if this is related, but might help with the troubleshooting


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This is my situation, but i am using gpios for driving relays with this simple script:

        [[ ! -d /sys/class/gpio/gpio${gp} ]] && echo ${gp} > /sys/class/gpio/export
        echo "out" > /sys/class/gpio/gpio${gp}/direction
        echo "0" > /sys/class/gpio/gpio${gp}/value
        sleep 10
        echo "1" > /sys/class/gpio/gpio${gp}/value


task "$1"



ls -l /sys/class/gpio 
total 0
--w------- 1 root root 4096 Jan  1  1970 export
lrwxrwxrwx 1 root root    0 Jan  1  1970 gpiochip0 -> ../../devices/platform/soc/1c20800.pinctrl/gpio/gpiochip0
lrwxrwxrwx 1 root root    0 Jan  1  1970 gpiochip352 -> ../../devices/platform/soc/1f02c00.pinctrl/gpio/gpiochip352
lrwxrwxrwx 1 root root    0 Oct 20 11:22 gpiochip412 -> ../../devices/platform/soc/1c1c000.usb/usb2/2-1/2-1.4/2-1.4.4/2-
--w------- 1 root root 4096 Jan  1  1970 unexport


If this can help you in some way ...

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