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Date:	Sun, 1 Nov 2009 21:38:35 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Vojtech Pavlik <vojtech@...e.cz>
Subject: Re: ALPS touchpad with 4 directions button doesnt work as intended

Hi Maxim,

On Sat, Oct 31, 2009 at 04:10:18AM +0200, Maxim Levitsky wrote:
> I have a acer 5720G laptop, and its touchpad (ALPS) has three buttons,
> usual left/right, and middle button that can be pressed in 4 directions.
> Up/down direction work fine, but left/right doesn't. This means that
> left direction  produces middle button click, and right direction
> doesn't work at all.
> I took a look at source, and I see that driver doesn't even know about
> such configuration.
> 
> Now I am sure its very easy to figure out what is send when no working
> button is pressed, but I am a bit confused what BTN_* event to assign to
> it, so it will work as horizontal scroll as intended.
> And unassign middle button from other direction....
> 

Synaptics driver maps multi-button to BTN_0...BTN_8 and it looks like
synaptics X driver maps teh 4-button case by default to
up/down/left/right scroll so I'd map ALPS the same.

-- 
Dmitry
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