Elantech PS/2 protocol extension

configname: CONFIG_MOUSE_PS2_ELANTECH

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Mice
└─>Elantech PS/2 protocol extension
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
Say Y here if you have an Elantech PS/2 touchpad connected
to your system.

Note that if you enable this driver you will need an updated
X.org Synaptics driver that does not require ABS_PRESSURE
reports from the touchpad (i.e. post 1.5.0 version). You can
grab a patch for the driver here:

http://userweb.kernel.org/~dtor/synaptics-no-abspressure.patch

If unsure, say N.

This driver exposes some configuration registers via sysfs
entries. For further information,
see Documentation/input/elantech.txt.