I have a Lenovo z580. It has touch sensitive buttons at the top as you can see in the picture.

The mute, vol down and vol up buttons work properly in Ubuntu. The other 2 don't.
The camera is used to activate Dolby Home Theater in Windows 7 and the other one (moon like) is used to control fan speed.
Is there a way I can reassign the other 2 buttons to execute a command which I choose ?
BTW vol up, vol down and mute are detected in xev but the other 2 are not.