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EGALAX(4x)							      EGALAX(4x)

NAME
     egalax - eGalax touch screen input driver

SYNOPSIS
     Section "InputDevice"
       Identifier "idevname"
       Driver "egalax"
       Option "Device"	 "devpath"
       ...
     EndSection

DESCRIPTION
     egalax is an XLibre input driver for eGalax touchscreen devices...

     The  egalax  driver functions as a pointer input device, and may be used as
     the X server's core pointer.

     It is obvious that a touch panel  with  a	stylus/finger  is  a  one-button
     mouse.   However,	the egalax tries to overcome this limitation.  If a user
     keeps stylus in one point for a certain time, then driver emulates  release
     of left mouse button and then pressure on the right mouse button.	The area
     where the stylus should be kept and time are configurable.

SUPPORTED HARDWARE
     The driver has been written for CarTFT CTF1020-S on screen touch panel, and
     is supposed to work with other similar touch panels based on eGalax.

     The egalax driver requires the uep(4) kernel driver.

CONFIGURATION DETAILS
     The following driver Options are supported:

     Option "Device" "string"
	    Usually "/dev/uep0" .

     Option "MinX" "integer"

     Option "MaxX" "integer"

     Option "MinY" "integer"

     Option "MaxY" "integer"
	    These values configure calibration of the touch panel.

	    The  touchscreen resolution is 2048 points in both directions.  How-
	    ever, the onscreen part of the panel is usually  smaller.	So,  the
	    panel  needs  to  be calibrated.  Initial values for calibration are
	    quite conservative, and the driver autocalibrates itself  when  user
	    touches  areas  near edge of screen.  After each autocalibration the
	    driver writes suggested calibration values to the Xorg  log.   These
	    values  should  be	written to the Xorg configuration file, to avoid
	    bad calibration on next run.

     Option "ReverseY" "boolean"
	    Invert the Y axis.	Default: off.

     Option "SwapAxes" "boolean"
	    Some eGalax touch screen units are assembled incorrectly and have  X
	    and  Y  axes  swapped.   This configuration knob allows to swap them
	    back.  Default: off.

     Option "RightClickEmulArea" "integer"
	    Size of the area where a stylus should be  held  still,  before  the
	    driver emulates right button click.  The default is 5 pixels.

     Option "RightClickEmulPause" "integer"
	    Time  the  driver  waits befor emulating right button pressure.  The
	    default is 1 second.

SEE ALSO
     Xorg(1), xorg.conf(5), xorgconfig(1), Xserver(1), X(7).

AUTHORS
     The driver has been written by Gleb Smirnoff

X Version 11		 xlibre-xf86-input-egalax 25.0.0	      EGALAX(4x)

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<https://man.freebsd.org/cgi/man.cgi?query=egalax&sektion=4&manpath=FreeBSD+15.1-RELEASE+and+Ports>

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