| Message ID | 1434576464-24391-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 29365c6..d259451 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -314,7 +314,7 @@ static void elantech_report_semi_mt_data(struct input_dev *dev, unsigned int x2, unsigned int y2) { elantech_set_slot(dev, 0, num_fingers != 0, x1, y1); - elantech_set_slot(dev, 1, num_fingers == 2, x2, y2); + elantech_set_slot(dev, 1, num_fingers >= 2, x2, y2); } /*
This is a note to let you know that I have just added a patch titled Input: elantech - fix semi-mt protocol for v3 HW to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11-ckt22. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.13.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 3bfb273ed3ad87994ca1d421887c6d8aed56d627 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires <benjamin.tissoires@redhat.com> Date: Thu, 23 Apr 2015 09:08:43 -0700 Subject: Input: elantech - fix semi-mt protocol for v3 HW commit 3c0213d17a09601e0c6c0ae0e27caf70d988290f upstream. When the v3 hardware sees more than one finger, it uses the semi-mt protocol to report the touches. However, it currently works when num_fingers is 0, 1 or 2, but when it is 3 and above, it sends only 1 finger as if num_fingers was 1. This confuses userspace which knows how to deal with extra fingers when all the slots are used, but not when some are missing. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=90101 Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/input/mouse/elantech.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1