Invalid gpio pin in fex configuration : -1

[sufialhussaini]

I get this message in dmesg:

[    7.584329] invalid gpio pin in fex configuration : -1

 

How can I check what line in the fex file is causing this problem?

 

# cat /etc/armbian-release
# PLEASE DO NOT EDIT THIS FILE
BOARD=micro
BOARD_NAME="Micro"
VERSION=5.25
LINUXFAMILY=sun7i
BRANCH=default
ARCH=arm
IMAGE_TYPE=stable

 

Thanks.