Touchpad Switch

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http://forums.fedoraforum.org – Fedora 17 HP G60 laptop various fn-function key combinations do useful things (screen brightness, volume, media player controls etc) BUT there is a handy little button over the touchpad, for switching it on and off. Has a nice little white light cluster over it that changes to red when you press it but that is all it does, touchpad is unaffected. How do link this button up with a turn off touchpad control? (HowTos)