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

From: Dmitry Torokhov
Date: Sat Oct 24 2009 - 17:16:56 EST


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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