Hi,
[...]
> > Hm. Why not touching pixel (0,0) on the touch is always pixel (0,0)
> > on the screen and touching pixel (639,479) is always (639,479)?
>
> Important is that there is no 1:1 mapping between input evdev device
> and drm/fb output device. These are two independent devices. There is
>
Hi all,
On Tue, Feb 21, 2017 at 9:47 AM, Pali Rohár wrote:
> But it really make sense to set input_abs_set_res() from DT.
And _not_ add the 1 or two lines of code that checks some DT variable,
and then fixes _everybody's_ userland?
That means those lines of code need to go into _every_ userland
> Am 20.02.2017 um 21:22 schrieb H. Nikolaus Schaller :
>
> Hi,
>
>> Am 20.02.2017 um 20:32 schrieb Pavel Machek :
>>
>> Hi!
>>
But if you have userspace that depends on touchscreen to be
calibrated... that _is_ wrong.
>>>
>>> User-space people and real users have the opposite opini
Hi,
> Am 20.02.2017 um 20:32 schrieb Pavel Machek :
>
> Hi!
>
>>> But if you have userspace that depends on touchscreen to be
>>> calibrated... that _is_ wrong.
>>
>> User-space people and real users have the opposite opinion. They
>> prefer if a touch is plug&play. I.e. without need for calibr
Hi!
> > But if you have userspace that depends on touchscreen to be
> > calibrated... that _is_ wrong.
>
> User-space people and real users have the opposite opinion. They
> prefer if a touch is plug&play. I.e. without need for calibration.
Some people prefer to calibrate their touchscreens; bec
Hi Pavel,
> Am 19.02.2017 um 23:39 schrieb Pavel Machek :
>
> Hi!
>
And note that I am not making things different from others in tree,
I am making the tsc2007 right (incl. following the touchscreen
bindings which define the touchscreen size in "Pixels").
>>>
>>> Your touch scree
Hi!
> > > And note that I am not making things different from others in tree,
> > > I am making the tsc2007 right (incl. following the touchscreen
> > > bindings which define the touchscreen size in "Pixels").
> >
> > Your touch screen is not in any way special, so it has to behave in
> > the sam
Hi,
On Sun, 19 Feb 2017 21:57:08 +0100
Pavel Machek wrote:
> Hi!
>
>
> > But as said I don't think we need float or fixed point for
> > practical systems at all.
>
> So you are going to loose precision. And if userspace decides to
> calibrate it slightly differently from kernel, lost precisio
Hi Dmitry,
On Fri, 17 Feb 2017 12:40:41 -0800
Dmitry Torokhov wrote:
[...]
> > Let me cite myself:
> >
> > >> This makes it possible to pre-calibrate the touch so that is
> > >> (almost)
>
> Yes, it allows you to pre-calibrate, I get it. But you still do
> properly calibrate later, right? So
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