ebeam_state(1)

NAME
ebeam_state - command-line ebeam calibration save and restore program

SYNOPSIS
ebeam_state -h, --help
ebeam_state [OPTION] --list
ebeam_state [OPTIONS] --save <file>
ebeam_state [OPTIONS] --restore <file>

DESCRIPTION
ebeam_state is a program for saving or restoring calibration data for a ebeam device, when using the native ebeam kernel module.

It currently features:
- works for any ebeam kernel driver supported devices
- dynamically recalibrates the kernel driver and the X evdev driver, restoring active zone (see below)

see http://ebeam.tuxfamily.org

OPTIONS

-v, --verbose
    Print debug messages during the process.

--device device_name_or_id
    Select a specific ebeam device to calibrate; Use ebeam_state --list to list the ebeam input devices.

USAGE
Once the ebeam device is calibrated with ebeam_calibrator, use ebeam-state to store the calibration data to a file.
You can later (after a reboot for example) restore the previous calibration data.

EXAMPLES
To save the current calibration data, type in your terminal:

    ebeam_state --save ~/ebeam.calib

To restore calibration data:

    ebeam_state --restore ~/ebeam.calib

TROUBLESHOOTING
Validity: The ebeam devices are designed to be movable. Calibration data are only valid for a precise location of the sensor. If you move it, even lightly, you'll have to redo the calibration with ebeam_calibrator. Active zone: Active zone is only relevant to the screen resolution at calibration time. If you change the screen resolution, you'll have to redo the calibration with ebeam_calibrator. In general, Run ebeam_state with the -v option, it will tell you what happens and what goes wrong. Version: You should restore calibration data saved by the same version of ebeam_state.

SEE ALSO
ebeam_calibrator(1)

AUTHORS
Yann Cantin <yann.cantin@laposte.net>