by private mail manjunathreddy boreddy wrote:

I am unable to access under /dev/gpio*.

Please post to the debian user mailing list rather than to me :-)

I do not myself use GPIO devices so I am not able to offer a truely sensible advice but I would begin with what the gpiodetect command (gpiod package) tells

here is an introduction to GPIO access from bash:
https://developer.technexion.com/docs/using-gpio-from-a-linux-shell

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