Weird, I am pretty new to raspberry pi stuff so I don’t really know. I am assuming all of the previous steps worked for you? I had to install python 2.7 when I did a fresh install to be able to do some of the multiplexing setup. If you do ‘sudo -i’ then ‘cd /root/linux/drivers/tty’, then ‘ls’, what shows up in the list of files? (pic attached of what mine looks like)
