Cannot find GPIO chip 3160000.i2c/i2c-0/0-0074

I am trying to control my stepper motor with Jetson TX2.
I had this problem. How can I solve?

hello mskilic46,

may I know which pin you’re using,
please examine your available GPIOs, for example, $ sudo cat /sys/kernel/debug/gpio
thanks

Hello JerryChang, Thanks for reply. It seems it is not related with GPIO pins because the problem occurs while importing the library. Our Jetson TX2 was used on carrier board previusly. Now I am using on it’s own developer board. So can the problem be about this?

hello mskilic46,

may I know which JetPack release you’re working with?
you may check release tag for confirmation, i.e. $ cat /etc/nv_tegra_release

you should also refer to Jetson TX2 Series MB1 Platform Configuration, you may have pinmux configuration updates since you’re having your customize board,
thanks