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Message-ID: <d120d5000703270919y16ae3e56kb7d2fbd293213939@mail.gmail.com>
Date: Tue, 27 Mar 2007 12:19:10 -0400
From: "Dmitry Torokhov" <dmitry.torokhov@gmail.com>
To: "Chuck Ebbert" <cebbert@redhat.com>
Subject: Re: Fix sudden warps in mousedev
Cc: "Pete Zaitcev" <zaitcev@redhat.com>, linux-kernel@vger.kernel.org,
       linux-input@atrey.karlin.mff.cuni.cz,
       "Peter Osterlund" <petero2@telia.com>
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On 3/27/07, Chuck Ebbert <cebbert@redhat.com> wrote:
> Dmitry Torokhov wrote:
> >>
> >> And why did the mouse numbers all get rearranged in 2.6.20, e.g.
> >> mouse1 became mouse2 for many people?
> >
> > Input devices are not guaranteed to be stable.
> >
>
> So people with z-axis mice need to redo their X config for each
> kernel release when the device numbers change? Or should they
> be using some other configuration?
>
> People using this now have X crashes on kernel upgrade because
> event1 became event2:
>
>        Driver      "evdev"
>        Option      "Device" "/dev/input/event1"
>

I'd recommend matching on "phys" or individual capabilities bits
instead of device node. See "man evdev".

-- 
Dmitry