Re: [driver] New life for Serial mice

John R Lenton
2001-06-08T18:29:34Z

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sorry I'm late, could you tell me where this driver/patch is?

also, my problem with USB mice on slow machines is that it takes
up too much CPU, and you get a jumpy mouse if your box is doing a
lot of work (like a heavy nfs server, say). Would this driver do
the same to that box?

On Fri, Jun 08, 2001 at 06:15:21PM +0200, Vojtech Pavlik wrote:
> On Wed, Jun 06, 2001 at 11:21:34PM +0000, Pavel Machek wrote:
>
> > > If you still have your 3-button MouseSystems (or any other serial) mouse
> > > somewhere in your driver, forgotten becase of the incredibly slow update
> > > rate causing so much jumping of the pointer on the screen that it is
> > > unusable, you may want to pull it out and give it a try.
> > >
> > > Or if you're still using it with some old 486 computer, this driver is
> > > for you.
> > >
> > > What it does is that it enhances the update rate from 24 (with current
> > > GPM and X drivers) to 96. This is almost what the best USB mice do.
> >
> > What's the "prediction" stuff? Does it mean you are guessing some values
> > by interpolation?
>
> Extrapolation, yes.
>
> > [If so, what kind of update rate would it do on USB?]
>
> It wouldn't make any difference - on USB you always get whole packets,
> while over serial port the data is processed byte by byte and thus we
> know a little of the information before the whole packet arrives.
>
> --
> Vojtech Pavlik
> SuSE Labs
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--
John Lenton (john@grulic.org.ar) -- Random fortune:
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