Hi all, 
I'm attempting to get the keyboard backlight on my Lenovo Thinkpad working, 
using this c program:

https://gist.github.com/hadess/6847281#file-tmp-c

However, there's no /sys/kernel/debug/ec/ec0/io created with which to talk 
to ec_sys.
This is after loading the module, which I can confirm was loaded 
successfully.