It is all handled in the kernel and/or screen firmware.  I don't know for
sure, I basically know that all that needs to be done with the data coming
out of the driver is to scale the coordinates to the pixel size of the
screen.

On Sat, Feb 7, 2009 at 9:19 PM, chueh8 <[email protected]> wrote:

>
> Perhaps no need for the user, but needed for the manufacturer...
> I just like to know the data send from kernel need to be the one
> calibrated or just the raw data..
> For other Linux touch screen driver support,, usually there is a tslib
> like run for calibrated the raw data from kernel..
> so what does the Android do?
>
> On Feb 7, 11:20 am, Dianne Hackborn <[email protected]> wrote:
> > They don't by the user.  You'll notice that neither the G1 nor the iPhone
> > require the user to calibrate their screen like you usually see on
> resistive
> > screens such have traditionally been in Palm and Windows Mobile devices.
> >
> >
> >
> > On Fri, Feb 6, 2009 at 3:00 PM, Billy Maron <[email protected]>
> wrote:
> >
> > > On 2/6/09, Dianne Hackborn <[email protected]> wrote:
> > > > Er which part of that is surprising? :}
> >
> > > I thought you were claiming that capacitive touch screens don't need
> > > calibration. That surprised me.
> >
> > > > On Thu, Feb 5, 2009 at 10:07 PM, Billy Maron <[email protected]>
> > > wrote:
> >
> > > > > On Fri, Feb 6, 2009 at 12:38 AM, Dianne Hackborn <
> [email protected]>
> > > > wrote:
> >
> > > > > > All our devices at this point use capacitive touch screens, which
> > > don't
> > > > need calibration.
> >
> > > > > whoa? what?
> >
> > > > --
> > > > Dianne Hackborn
> > > > Android framework engineer
> > > > [email protected]
> >
> > > > Note: please don't send private questions to me, as I don't have time
> to
> > > > provide private support.  All such questions should be posted on
> public
> > > > forums, where I and others can see and answer them.
> >
> > --
> > Dianne Hackborn
> > Android framework engineer
> > [email protected]
> >
> > Note: please don't send private questions to me, as I don't have time to
> > provide private support.  All such questions should be posted on public
> > forums, where I and others can see and answer them.
> >
>


-- 
Dianne Hackborn
Android framework engineer
[email protected]

Note: please don't send private questions to me, as I don't have time to
provide private support.  All such questions should be posted on public
forums, where I and others can see and answer them.

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