Linux on a Fujitsu U810, U820 - keyboard lights

short story: it's working !! - keep reading

Some readers of this blog where still missing this feature, so I engaged the daunting task of finding some time and energy to solve this issue. After 5 hours of googling, reading documentation about acpi, linux kernel, reading c code for the linux kernel drivers, googling for ubuntu file repository source files, ... I found the solution, which is very easy:

=> keyboard lights can be easily controlled by accessing the sysfs <=

Since the sysfs is root-only, I have created a small c program, with automatic compile and install, that makes keyboard-lights accessible for any user.

Installation

1 download the fujitsu-kbdlights-0.1.0.tar.gz to any directory in your computer


2 decompress the package (it will create another directory, fujitsu-kbdlights-0.1.0/)
tar zxvf fujitsu-kbdlights-0.1.0.tar.gz


3 compile and install
cd fujitsu-kbdlights-0.1.0
make
sudo make install


4 and in a command shell, you can type

fujitsu_kbdlights on

fujitsu_kbdlights off

fujitsu_kbdlights toggle

fujitsu_kbdlights


5 if you want, you can bind any of the previous commands to a hot-key using any keyboard setup utility

Enjoy typing at night !!