I received my g55vw a while back... So now I have installed ubuntu on it

The only (currently) problem I have is the keyboard backlight. I have read some places that you can issue the command sudo sh -c "echo 1 > /sys/class/leds/asus\:\:kbd_backlight/brightness" to adjust the brightness. But the problem is that I can't find those files in /sys/class/leds.

So, does anybody know how to turn the keyboard backlight on in ubuntu?

Thanks in advance!