@Curga
I've done some more extensive testing with TC3.8.4 & TC4
3.8.4 requires the pci-hotplug extension & hwmon extensions to be loaded. Loading hwmon results in the eeepc-laptop extension being loaded without any need for an additional modprobe of the module. All the eeepc function keys seem to work (wireless toggle etc) after this.
TC4 doesn't seem to need the hwmon extension, only the pci-hotplug one, plus 'modprobe eeepc-laptop' in bootlocal.sh to get the eeepc Function keys working.