Vojtech Pavlik <[EMAIL PROTECTED]> writes:
> On Fri, Feb 04, 2005 at 07:40:43AM +0100, Peter Osterlund wrote:
> > Vojtech Pavlik <[EMAIL PROTECTED]> writes:
> >
> > > On Thu, Feb 03, 2005 at 10:54:51PM +0100, Peter Osterlund wrote:
> > >
> > > > * Removes the xres/yres scaling so that you get the same speed in the
> > > > X and Y directions even if your screen is not square.
> > >
> > > The old code assumed that both the pad and the screen are 4:3, not
> > > square. It was wrong still.
>
> > alps.c currently contains:
> >
> > psmouse->dev.evbit[LONG(EV_ABS)] |= BIT(EV_ABS);
> > input_set_abs_params(&psmouse->dev, ABS_X, 0, 1023, 0, 0);
> > input_set_abs_params(&psmouse->dev, ABS_Y, 0, 1023, 0, 0);
> > input_set_abs_params(&psmouse->dev, ABS_PRESSURE, 0, 127, 0, 0);
> >
> > Maybe it should set the ABS_Y max value to 767 in that case.
>
> Yes, and no. It could have been 1023, if it was 3:4 in size, but not in
> maximum values. See the real values below, though, it seems the
> resolution in X and Y is indeed the same.
...
> My ALPS gives values:
>
> X: 90-1019
> Y: 100-749
> Pressure: 0,34-108
I get similar values:
X: 40 - 984
Y: 97 - 732
Z: 0, 19 - 127
> So 0-1024, 0-768, 0-127 are probably the maximum theoretical ranges, and
> the rest are likely the mechanical mounting limitations of the notebook
> (the ridge around the pad is not rectangular).
--
Peter Osterlund - [EMAIL PROTECTED]
http://web.telia.com/~u89404340
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