This is a note to let you know that I've just added the patch titled
Input: elantech - deal with clickpads reporting right button events
to the 3.4-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-deal-with-clickpads-reporting-right-button-events.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From cd9e83e2754465856097f31c7ab933ce74c473f8 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Sat, 7 Jun 2014 22:35:07 -0700
Subject: Input: elantech - deal with clickpads reporting right button events
From: Hans de Goede <hdegoede@xxxxxxxxxx>
commit cd9e83e2754465856097f31c7ab933ce74c473f8 upstream.
At least the Dell Vostro 5470 elantech *clickpad* reports right button
clicks when clicked in the right bottom area:
https://bugzilla.redhat.com/show_bug.cgi?id=1103528
This is different from how (elantech) clickpads normally operate, normally
no matter where the user clicks on the pad the pad always reports a left
button event, since there is only 1 hardware button beneath the path.
It looks like Dell has put 2 buttons under the pad, one under each bottom
corner, causing this.
Since this however still clearly is a real clickpad hardware-wise, we still
want to report it as such to userspace, so that things like finger movement
in the bottom area can be properly ignored as it should be on clickpads.
So deal with this weirdness by simply mapping a right click to a left click
on elantech clickpads. As an added advantage this is something which we can
simply do on all elantech clickpads, so no need to add special quirks for
this weird model.
Reported-and-tested-by: Elder Marco <eldermarco@xxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/mouse/elantech.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -472,8 +472,15 @@ static void elantech_report_absolute_v3(
input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
- input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
- input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+
+ /* For clickpads map both buttons to BTN_LEFT */
+ if (etd->fw_version & 0x001000) {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
+ } else {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ }
+
input_report_abs(dev, ABS_PRESSURE, pres);
input_report_abs(dev, ABS_TOOL_WIDTH, width);
@@ -483,10 +490,17 @@ static void elantech_report_absolute_v3(
static void elantech_input_sync_v4(struct psmouse *psmouse)
{
struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
unsigned char *packet = psmouse->packet;
- input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
- input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ /* For clickpads map both buttons to BTN_LEFT */
+ if (etd->fw_version & 0x001000) {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
+ } else {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ }
+
input_mt_report_pointer_emulation(dev, true);
input_sync(dev);
}
Patches currently in stable-queue which might be from hdegoede@xxxxxxxxxx are
queue-3.4/input-elantech-deal-with-clickpads-reporting-right-button-events.patch
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