>It has to be calibrated data. Android assumes it to be calibrated that means dirver should have hard coded XMAX,XMIN, YMAX, YMIN as per the touch screen calibrated earlier ?
On Sun, Feb 8, 2009 at 6:20 PM, vishal bhoj <[email protected]> wrote: > > It has to be calibrated data. Android assumes it to be calibrated > On Sun, Feb 8, 2009 at 12:39 AM, Dianne Hackborn <[email protected]>wrote: > >> 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. >> >> >> >> > > > -- > with regards vishal > > > > --~--~---------~--~----~------------~-------~--~----~ unsubscribe: [email protected] website: http://groups.google.com/group/android-porting -~----------~----~----~----~------~----~------~--~---
