Both the TrackPoint and the TouchPad work with the standard ps2/psaux driver of linux kernels.
To get advanced configurability for the touchpad working there are several drivers for Synaptics TouchPads available for X:
- Synaptics TouchPad driver for X is an X input driver
- tpconfig is a tool to configure the TouchPad device before the actual input driver takes over
To get advanced configurability for the TrackPoint, look at the TrackPoint kernel patch.