linux-kernel - Re: 2.6.31.4, ps2-to-usb adapter: fourth mouse button not working

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Message-ID: <20091024211045.GB15297@core.coreip.homeip.net>
Date:	Sat, 24 Oct 2009 14:10:46 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Harald Dunkel <harald.dunkel@...nline.de>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>, linux-kernel@...r.kernel.org
Subject: Re: 2.6.31.4, ps2-to-usb adapter: fourth mouse button not working

Hi Harald,

On Sat, Oct 24, 2009 at 11:14:26AM +0200, Harald Dunkel wrote:
> On 10/23/09 09:37, Matthew Garrett wrote:
>> Sorry, just noticed that you said it was an active one. Does it generate
>> wheel events for any other PS/2 mice? It may simply be a limitation of
>> the hardware.
>>
>
> Using a regular mouse with 3 buttons and a wheel there is no problem.
> All work fine. But it just got 3 buttons. I've got problems with a
> fourth button, so the PS/2 mouse doesn't show.
>
> Is there a hardwired limit to 3 buttons somewhere in the code?

No, but the 4th button of your TackMan requires Logitech's PS/2++
protocol extension which your USB converter is not likely to support.

I believe most of them speak bare, Intellimouse and Expolorer PS/2
protocols...

-- 
Dmitry
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