Patch "Input: elantech - fix semi-mt protocol for v3 HW" has been added to the 3.10-stable tree

This is a note to let you know that I've just added the patch titled

Input: elantech - fix semi-mt protocol for v3 HW

to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
input-elantech-fix-semi-mt-protocol-for-v3-hw.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Benjamin Tissoires <[email protected]>
Date: Thu, 23 Apr 2015 09:08:43 -0700
Subject: Input: elantech - fix semi-mt protocol for v3 HW

From: Benjamin Tissoires <[email protected]>

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.

---
 drivers/input/mouse/elantech.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -314,7 +314,7 @@ static void elantech_report_semi_mt_data
 					 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);
 }
 
 /*

Patches currently in stable-queue which might be from [email protected] are

queue-3.10/input-elantech-fix-semi-mt-protocol-for-v3-hw.patch