From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Mon, 9 Mar 2015 05:30:43 +0000 (-0700)
Subject: Input: synaptics - fix middle button on Lenovo 2015 products
X-Git-Tag: v3.2.69~110
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=479e286fb6e54aa95f90cdb92efa9c8a0a188808;p=pandora-kernel.git

Input: synaptics - fix middle button on Lenovo 2015 products

commit dc5465dc8a6d5cae8a0e1d8826bdcb2e4cb261ab upstream.

On the X1 Carbon 3rd gen (with a 2015 broadwell cpu), the physical middle
button of the trackstick (attached to the touchpad serio device, of course)
seems to get lost.

Actually, the touchpads reports 3 extra buttons, which falls in the switch
below to the '2' case. Let's handle the case of odd numbers also, so that
the middle button finds its way back.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[bwh: Backported to 3.2: open-code GENMASK()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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