Input: add driver for Synaptics I2C touchpad

This driver supports Synaptics I2C touchpad controller on eXeda
mobile device. Unfortunaltely it only works in relative mode and
thus is not comaptible with Xorg Synaptics driver.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index c66cc3d08c2f..8a2c5b14c8d8 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -303,4 +303,22 @@ config MOUSE_MAPLE
           To compile this driver as a module choose M here: the module will be
           called maplemouse.
 
+config MOUSE_SYNAPTICS_I2C
+        tristate "Synaptics I2C Touchpad support"
+        depends on I2C
+        help
+          This driver supports Synaptics I2C touchpad controller on eXeda
+          mobile device.
+          The device will not work the synaptics X11 driver because
+          (i) it  reports only relative coordinates and has no capabilities
+          to report absolute coordinates
+          (ii) the eXeda device itself uses Xfbdev as X Server and it does
+          not allow using xf86-input-* drivers.
+
+          Say y here if you have eXeda device and want to use a Synaptics
+          I2C Touchpad.
+
+          To compile this driver as a module, choose M here: the
+          module will be called synaptics_i2c.
+
 endif