
This file tells how to use gpm with the driver for event-devices
that use absolut coordiantes (evabs) like touchscreens. It was
desigened and tested for eGalax controllers, but should work with
others as well.


		CALIBRATION
		-----------

Calibration is done with a configfile. It consists of a single
line of 8 integers:

ex_min ex_max ey_min ey_max sx_min sx_max sy_min sy_max

The first four values (prefixed withe here) show the minimum and
maximum values of coordinates the event-device delivers for
x- and y-axis, respectivly. The last four values show range of 
coordinates to which the input should be scaled, for example your
screen resolution. This works for text-mode, too.

An example for an 800x600 screen would look like this:

50 1950 50 1950 0 799 0 599


		GPM OPERATION
		-------------

You need to use the evabs devicetype to use this feature, a
device that delivers the absolute coordinates a config-file
that describes how to scale these coordinates, and a repeater-
device used for output.
The pseudo-file /proc/bus/input/devices should tell you which
event-device to use.

Usage example:

gpm -t evabs  -m /dev/input/event2 -c /etc/gpm-calib.conf -R ps2
