lkml.org 
[lkml]   [2009]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] hx4700: fix hx4700 touchscreen pressure values
    On Wed, Nov 18, 2009 at 06:28:49PM +0100, Pavel Machek wrote:
    > On Wed 2009-11-18 00:22:41, Paul Parsons wrote:
    > > > Does pressure actually work as expected -- that is not inverted?
    > > > Because I need this patch on spitz... but it may break your
    > > > machine...
    > >
    > > You are right, the pressure values were being inverted on my hx4700.
    > > Pressing hard generates somewhat lower Rt values than pressing lightly.
    > >
    > > Since typical hx4700 Rt values are close to (pressure_max/2) anyway,
    > > the inverted and non-inverted values were not very different.
    > > For example:
    > >
    > > Rt ts->pressure_max-Rt
    > > 599 425
    > > 562 462
    > > 588 436
    > > 570 454
    > >
    > > So by all means submit your ads7846.c patch; it will not break hx4700.
    >
    > Dmitry, those pressure values are reverted on more than one machine,
    > and we do not have anyone reporting it works ok for them. Can we
    > perhaps just.... fix it?

    OK, so we have 4 instances where pressure is inverted and nobody wants
    to come out with a non-inverted example... I'll queue for .33 then - .32
    it too close to the release.

    --
    Dmitry


    \
     
     \ /
      Last update: 2009-11-18 18:43    [W:0.039 / U:208.164 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site