linux-kernel - Re: [PATCH 2/2] Input - synaptics: pin 3 touches when the firmware reports 3 fingers

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Date:	Sat, 25 Apr 2015 11:40:30 +0200
From:	Henrik Rydberg <rydberg@...math.org>
To:	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Peter Hutterer <peter.hutterer@...-t.net>,
	Hans de Goede <hdegoede@...hat.com>
Subject: Re: [PATCH 2/2] Input - synaptics: pin 3 touches when the firmware
 reports 3 fingers

Benjamin,

>>>> For old kernels this is not a problem because max_slots was 2 and libinput/
>>>> xorg-synaptics knew how to deal with that. Now that max_slot is 3, the
>>>> clients ignore BTN_TOOL_TRIPLETAP and count the actual used slots (so 2).
>>>> It then gets confused when receiving the BTN_TOOL_TRIPLETAP and DOUBLETAP
>>>> information, and goes wild.

Maybe the cr48 sensor should be classified as MT_SEMI instead.

Henrik

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