eBeam tools ebeam_calibrator is a program for calibrating your ebeam device, when using the native ebeam kernel module and X Window System. ebeam_state is a program for saving or restoring calibration data for a ebeam device, when using the native ebeam kernel module. Compilation and installation: Install the following devel packages, see your linux distribution's documentation. x11 x11-proto xinput gnu gsl Unpack the ebeam_tools archive, enter the directory, and : ./configure make make install Usage: Launch ebeam_calibrator, point the red targets in turn, et voila. You can save the current calibration data with : ebeam_state --save /path/to/your/file You can later restore the calibration data with ebeam_state --restore /path/to/your/file