I am using CS331-C246/Q370 MicroATX Industrial Motherboard loaded with ubuntu 18.04. It has 8 GPIO PINS (DIO0 to DIO7), we are using switch to enable and disable the GPIO pin and we are trying to read the value by using "cat /sys/class/gpio/gpioN/value" but value is not changing by toggling the switch. we checked with all the GPIO pins from (148-511)
In /sys/class/gpio three files are there 1)export 2)gpiochip148 3)unexport
in /dev gpiochio0
1) GPIO pin numbers to read the value from /sys/class/gpio/gpioN/value in linux
Thank you for posting in the Intel Community.
I would recommend confirming the pin layout with the motherboard manufacturer and the appropriate steps to complete the test that you are running on the systems.
Intel Customer Support Technician