What is this?
It's a tool that can be used to control features of the "Lenovo ThinkPad USB Keyboard with TrackPoint". The official User Guide can be found here (PDF).
Requirements and Limitations
This tool uses the hidraw driver and needs at least Linux 2.6.30 in order
to work. It can only write settings, not read them, so you have to set
everything at the same same.
On some systems the hidraw devide files are readable only by root, so you might need to run this as root.
Usage
Usage: tpkbdctl [OPTIONS]
-h, --help show this
-V, --version show version
-d, --device=? set device. Autodiscovered if unset
-v increase verbosity
-s, --sensitivity=? set sensitivity, range 1-255
-S, --press-speed=? set press-speed, range 1-255
-p, --press-to-select enable press-to-select
-R, --press-right select with right button instead of left
-D, --dragging enable dragging
-r, --release-to-select enable release-to-select
Sensitivity
The higher the sensitivity, the less force you need to move the mouse cursor.
Press to select
If this is enabled, pressing down the trackpoint generates a click.
Press-speed
This setting determines how fast you have to press to generate a click if Press to select is enabled.
Dragging
By enabling this, you can not only click by pressing down the trackpoint, but also drag. This depends on Press to select being enabled.
Press right
This changes to Press to select feature to generate right-button clicks instead of left-button ones.
Release to select
This inappropriately named option (the name was adopted from the Windows driver) enables double-clicking when using Press to select.
Building and Installing
make
sudo make install
You need Linux headers installed, minimum version 2.6.30.
See also
There's a kernel patch that provides more functionality than this tool. Be aware though, the unstable branch will be rebased from time to time.
License
This tool is licensed under the GNU GPL v2.