Input Devices

USB input devices support installation :
1- USB keyboard and USB mouse are supported via hid, usbmouse, usbkbd, mousedev, keybdev kernel modules. Of course, USB chipset is driven by usb-uhci and ehci-hcd kernel modules (for USB 2.0).

Installation of XFree 4.3.0-r3 (and touchpad support) :
2- emerge x11-base/xfree/xfree-4.3.0-r3.ebuild
look at my XF86Config-4 for more information.