commit 024311c04dd12fa5992811202c177e49bd5e4264
author Andrew Duggan <aduggan@synaptics.com> Wed May 27 22:27:13 2015
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> Wed Jun 03 19:46:32 2015
tree e89bffa281831c6c889e6ce90de10a76fbfdd82b
parent 2bd4b18b700d6860d84d58714ed6fca8ef5e643a

Default configuration for Synaptics toucpads

Without calibration values palm rejection works poorly because the
default palm pressure value is too large for the range of pressure
values which we report. We came up with some default calibration values
which are better suited for the pressure values which we report. These
values will be used in development until the final calibration is done.

BUG=chrome-os-partner:40694
TEST=tested on lulu and jerry.

Change-Id: Iee36dbb4fbdd7ff54b2b3c0585b4b9e3c6509b57
Reviewed-on: https://chromium-review.googlesource.com/273598
Reviewed-by: Charlie Mooney <charliemooney@chromium.org>
Commit-Queue: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Andrew Duggan <aduggan@synaptics.com>

40-touchpad-cmt.conf

diff --git a/40-touchpad-cmt.conf b/40-touchpad-cmt.conf
index ae9cc6e..eca6f2c 100644
--- a/40-touchpad-cmt.conf
+++ b/40-touchpad-cmt.conf
@@ -19,6 +19,17 @@
 EndSection
 
 Section "InputClass"
+    Identifier      "CMT for Synaptics Touchpad"
+    MatchUSBID      "06cb:*"
+    MatchIsTouchpad "on"
+    MatchDevicePath "/dev/input/event*"
+
+    # default calibration values for Synaptics firmware
+    Option          "Pressure Calibration Offset" "-51.1766"
+    Option          "Pressure Calibration Slope"  "1.7716"
+EndSection
+
+Section "InputClass"
     Identifier      "CMT for Apple Magic Trackpad"
     MatchUSBID      "05ac:030e"
     MatchDevicePath "/dev/input/event*"