Comment 9 for bug 641320

The lp641220-maverick kernel restores the touchpad to a functional state, but it is now functions as a ImPS/2 Generic Wheel Mouse ( as per Chase Douglas above). The touchpad tab no longer appears under Pointing Devices. But as least it's working, somewhat.

$ xinput -list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ImPS/2 Generic Wheel Mouse id=11 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
    ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
    ↳ Sony Vaio Keys id=6 [slave keyboard (3)]
    ↳ Video Bus id=7 [slave keyboard (3)]
    ↳ Power Button id=8 [slave keyboard (3)]
    ↳ USB 2.0 Camera id=9 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=10 [slave keyboard (3)]