AnsweredAssumed Answered

GPIO output value not changing.

Question asked by Kyle Johnson on Aug 7, 2013
Latest reply on Aug 1, 2016 by Namrata Nalawade

I am trying to setup up a output GPIO pin on my Nitrogen6X board, but I can't change the file value. I navigated to /sys/class/gpio/ and I exported my pin (GPIO18) with echo 18 > export. I was then able to change direction with the command echo out > direction and it seems like I should be able to change the value file the same way, with echo 1 > value, but this doesn't seem to be working. I am logged in as root and the permissions on both the direction file and the value file are the same: -rw-r--r-- 1 root root.


Does anyone have an idea why this would not be writing to this file?


Thanks so much for all of your help!