tree 0a7139af51614d0f8d51ca0a042b4329bef257ba
parent 288b7224e9a3bd872eada9341d8dc76f6b41a293
author Hash.Hung <hash1.hung@lcfc.corp-partner.google.com> 1587133309 +0800
committer Commit Bot <commit-bot@chromium.org> 1588220271 +0000

Lick: Disable Zero Finger Click

Disable zero finger click to avoid mechanic issue around the touchpad:
Namely hold the device and shake it intensively, it would
generate false input events, which potentially causes an
involuntary UI event from user's perspective.

This patch disable "Zero Finger Clicks" to
mitigate ghost events; even click is reported physically,
the higher level gesture-interpreter will suppress it
so there will be no fingers action on the UI layer.

"Lick" has multiple possible touchpads, both Elan and Synaptics.

BUG=b:154311829
TEST=emerge and deploy, check conf install onto DUT,
     intensively shake device while watching stream video,
     make sure video won't suddenly stop playing while no fingers
     touch the touchpad.

Signed-off-by: Hash.Hung <hash1.hung@lcfc.corp-partner.google.com>
Change-Id: I0bc75dfb4a7694e328c90a8d5236279581a0fac5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/xorg-conf/+/2153529
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Tested-by: Henry Sun <henrysun@google.com>
Commit-Queue: Henry Sun <henrysun@google.com>
(cherry picked from commit d27c5288e848591a2ced53b21a2da6208425d280)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/xorg-conf/+/2169948
Tested-by: Julia Tsai <julia.tsai@lcfc.corp-partner.google.com>
Reviewed-by: Henry Sun <henrysun@google.com>