Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 >

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > > They are "pixels" or the touch controller, i.e. native unites in which > > device reports coordinates, as opposed to points per inch, or > > millimeters, or whatever. These "pixels" do not have to have 1:1 > > relation to the LCD pixels; in fact they rarely do. > > I wouldn't call this

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > > They are "pixels" or the touch controller, i.e. native unites in which > > device reports coordinates, as opposed to points per inch, or > > millimeters, or whatever. These "pixels" do not have to have 1:1 > > relation to the LCD pixels; in fact they rarely do. > > I wouldn't call this

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Tuesday 21 February 2017 07:36:17 H. Nikolaus Schaller wrote: > Hi, > > > Am 20.02.2017 um 22:50 schrieb Dmitry Torokhov : > > > > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > > wrote: > >> > >>> Am 20.02.2017 um 22:08 schrieb Pali

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Tuesday 21 February 2017 07:36:17 H. Nikolaus Schaller wrote: > Hi, > > > Am 20.02.2017 um 22:50 schrieb Dmitry Torokhov : > > > > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > > wrote: > >> > >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : > >>> > >>> On Monday 20 February 2017

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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_

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Tuesday 21 February 2017 07:42:17 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 22:54 schrieb Pali Rohár : > > > > On Monday 20 February 2017 22:24:31 H. Nikolaus Schaller wrote: > >> Hi Pali, > >> > >>> Am 20.02.2017 um 22:07 schrieb Pali Rohár

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Tuesday 21 February 2017 07:42:17 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 22:54 schrieb Pali Rohár : > > > > On Monday 20 February 2017 22:24:31 H. Nikolaus Schaller wrote: > >> Hi Pali, > >> > >>> Am 20.02.2017 um 22:07 schrieb Pali Rohár : > >>> > >>> On Monday 20

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! On Tuesday 21 February 2017 08:14:09 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > > > Hi Nikolaus! > > > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > >> Hi Dmitry, > >> > >>> Input driver may set

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! On Tuesday 21 February 2017 08:14:09 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > > > Hi Nikolaus! > > > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > >> Hi Dmitry, > >> > >>> Input driver may set resolution for given

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Petr and all, > Am 20.02.2017 um 23:26 schrieb Petr Cvek : > > Hi > > Dne 20.2.2017 v 17:50 H. Nikolaus Schaller napsal(a): >> Hi Pavel, >> >>> Am 19.02.2017 um 23:19 schrieb Pavel Machek : >>> >>> hi! >>> >> But as said I don't think we need float or

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Petr and all, > Am 20.02.2017 um 23:26 schrieb Petr Cvek : > > Hi > > Dne 20.2.2017 v 17:50 H. Nikolaus Schaller napsal(a): >> Hi Pavel, >> >>> Am 19.02.2017 um 23:19 schrieb Pavel Machek : >>> >>> hi! >>> >> But as said I don't think we need float or fixed point for practical >>

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > Hi Nikolaus! > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: >> Hi Dmitry, >> >>> Input driver may set resolution for given axis in units per mm (or >>> units per radian for rotational axis

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > Hi Nikolaus! > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: >> Hi Dmitry, >> >>> Input driver may set resolution for given axis in units per mm (or >>> units per radian for rotational axis ABS_RX, ABS_RY, ABS_RZ),

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Dmitry, > Am 20.02.2017 um 23:24 schrieb Dmitry Torokhov : > > On Mon, Feb 20, 2017 at 2:21 PM, Petr Cvek wrote: >> Hi, >> >> Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): >>> On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Dmitry, > Am 20.02.2017 um 23:24 schrieb Dmitry Torokhov : > > On Mon, Feb 20, 2017 at 2:21 PM, Petr Cvek wrote: >> Hi, >> >> Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): >>> On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller >>> wrote: > Am 20.02.2017 um 22:08 schrieb

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 23:04 schrieb Pali Rohár : > > On Monday 20 February 2017 22:27:39 H. Nikolaus Schaller wrote: >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 20:42:15 Pali Rohár wrote: While I'm

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 23:04 schrieb Pali Rohár : > > On Monday 20 February 2017 22:27:39 H. Nikolaus Schaller wrote: >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 20:42:15 Pali Rohár wrote: While I'm watching this discussion... in my opinion

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 22:54 schrieb Pali Rohár : > > On Monday 20 February 2017 22:24:31 H. Nikolaus Schaller wrote: >> Hi Pali, >> >>> Am 20.02.2017 um 22:07 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 22:54 schrieb Pali Rohár : > > On Monday 20 February 2017 22:24:31 H. Nikolaus Schaller wrote: >> Hi Pali, >> >>> Am 20.02.2017 um 22:07 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller wrote: Hi Pali, > Am

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, > Am 20.02.2017 um 22:50 schrieb Dmitry Torokhov : > > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > wrote: >> >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 20:42:15 Pali

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, > Am 20.02.2017 um 22:50 schrieb Dmitry Torokhov : > > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > wrote: >> >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 20:42:15 Pali Rohár wrote: Hi Nikolaus! On Monday 20 February 2017

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 23:21:37 Petr Cvek wrote: > Hi, > > Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): > > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > > wrote: > >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : > >>> > >>> On Monday

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 23:21:37 Petr Cvek wrote: > Hi, > > Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): > > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > > wrote: > >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : > >>> > >>> On Monday 20 February 2017 20:42:15 Pali Rohár

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > wrote: >> >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 20:42:15 Pali Rohár wrote: Hi Nikolaus!

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): > On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller > wrote: >> >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >>> >>> On Monday 20 February 2017 20:42:15 Pali Rohár wrote: Hi Nikolaus! On Monday 20 February 2017 17:50:04

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Dne 20.2.2017 v 17:50 H. Nikolaus Schaller napsal(a): > Hi Pavel, > >> Am 19.02.2017 um 23:19 schrieb Pavel Machek : >> >> 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

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Dne 20.2.2017 v 17:50 H. Nikolaus Schaller napsal(a): > Hi Pavel, > >> Am 19.02.2017 um 23:19 schrieb Pavel Machek : >> >> 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

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Mon, Feb 20, 2017 at 2:21 PM, Petr Cvek wrote: > Hi, > > Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): >> On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller >> wrote: >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár :

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Mon, Feb 20, 2017 at 2:21 PM, Petr Cvek wrote: > Hi, > > Dne 20.2.2017 v 22:50 Dmitry Torokhov napsal(a): >> On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller >> wrote: >>> Am 20.02.2017 um 22:08 schrieb Pali Rohár : On Monday 20 February 2017 20:42:15 Pali Rohár wrote:

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 22:27:39 H. Nikolaus Schaller wrote: > > Am 20.02.2017 um 22:08 schrieb Pali Rohár : > > > > On Monday 20 February 2017 20:42:15 Pali Rohár wrote: > >> While I'm watching this discussion... in my opinion kernel should > >> just invert input axes

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 22:27:39 H. Nikolaus Schaller wrote: > > Am 20.02.2017 um 22:08 schrieb Pali Rohár : > > > > On Monday 20 February 2017 20:42:15 Pali Rohár wrote: > >> While I'm watching this discussion... in my opinion kernel should > >> just invert input axes (when needed) > > It is

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 22:24:31 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 22:07 schrieb Pali Rohár : > > > > On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller wrote: > >> Hi Pali, > >> > >>> Am 20.02.2017 um 20:42 schrieb Pali Rohár

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 22:24:31 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 22:07 schrieb Pali Rohár : > > > > On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller wrote: > >> Hi Pali, > >> > >>> Am 20.02.2017 um 20:42 schrieb Pali Rohár : > >>> > >>> Hi Nikolaus! >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller wrote: > >> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >> >> On Monday 20 February 2017 20:42:15 Pali Rohár wrote: >>> Hi Nikolaus! >>> >>> On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Mon, Feb 20, 2017 at 1:27 PM, H. Nikolaus Schaller wrote: > >> Am 20.02.2017 um 22:08 schrieb Pali Rohár : >> >> On Monday 20 February 2017 20:42:15 Pali Rohár wrote: >>> Hi Nikolaus! >>> >>> On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: Hi Dmitry, > Input

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

> Am 20.02.2017 um 22:08 schrieb Pali Rohár : > > On Monday 20 February 2017 20:42:15 Pali Rohár wrote: >> Hi Nikolaus! >> >> On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: >>> Hi Dmitry, >>> Input driver may set resolution for given axis in units

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

> Am 20.02.2017 um 22:08 schrieb Pali Rohár : > > On Monday 20 February 2017 20:42:15 Pali Rohár wrote: >> Hi Nikolaus! >> >> On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: >>> Hi Dmitry, >>> Input driver may set resolution for given axis in units per mm (or units

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 22:07 schrieb Pali Rohár : > > On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller wrote: >> Hi Pali, >> >>> Am 20.02.2017 um 20:42 schrieb Pali Rohár : >>> >>> Hi Nikolaus! >>> >>> On Monday 20 February 2017

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 22:07 schrieb Pali Rohár : > > On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller wrote: >> Hi Pali, >> >>> Am 20.02.2017 um 20:42 schrieb Pali Rohár : >>> >>> Hi Nikolaus! >>> >>> On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: Hi

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 20:42:15 Pali Rohár wrote: > Hi Nikolaus! > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > > Hi Dmitry, > > > > > Input driver may set resolution for given axis in units per mm > > > (or units per radian for rotational axis ABS_RX, ABS_RY, > > >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 20:42:15 Pali Rohár wrote: > Hi Nikolaus! > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > > Hi Dmitry, > > > > > Input driver may set resolution for given axis in units per mm > > > (or units per radian for rotational axis ABS_RX, ABS_RY, > > >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > > > Hi Nikolaus! > > > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > >> Hi Dmitry, > >> > >>> Input driver may set

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

On Monday 20 February 2017 21:35:18 H. Nikolaus Schaller wrote: > Hi Pali, > > > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > > > Hi Nikolaus! > > > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > >> Hi Dmitry, > >> > >>> Input driver may set resolution for given axis in

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

> 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

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

> 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

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > Hi Nikolaus! > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: >> Hi Dmitry, >> >>> Input driver may set resolution for given axis in units per mm (or >>> units per radian for rotational axis

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pali, > Am 20.02.2017 um 20:42 schrieb Pali Rohár : > > Hi Nikolaus! > > On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: >> Hi Dmitry, >> >>> Input driver may set resolution for given axis in units per mm (or >>> units per radian for rotational axis ABS_RX, ABS_RY, ABS_RZ),

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 I.e. without need

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 I.e. without need for

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

HI Pavel, > Am 20.02.2017 um 20:29 schrieb Pavel Machek : > > Hi! > >> As long as it is small (I expect <1.01 = 1% error in scale) it is >> barely noticeable. >> >> Therefore, I asked before: how big in pixels is your finger or stylus? >> Does this effect matter? > > If I draw a

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

HI Pavel, > Am 20.02.2017 um 20:29 schrieb Pavel Machek : > > Hi! > >> As long as it is small (I expect <1.01 = 1% error in scale) it is >> barely noticeable. >> >> Therefore, I asked before: how big in pixels is your finger or stylus? >> Does this effect matter? > > If I draw a line in gimp,

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Nikolaus! On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > Hi Dmitry, > > > Input driver may set resolution for given axis in units per mm (or > > units per radian for rotational axis ABS_RX, ABS_RY, ABS_RZ), and > > if you check the binding, you can use "touchscreen-x-mm"

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Nikolaus! On Monday 20 February 2017 17:50:04 H. Nikolaus Schaller wrote: > Hi Dmitry, > > > Input driver may set resolution for given axis in units per mm (or > > units per radian for rotational axis ABS_RX, ABS_RY, ABS_RZ), and > > if you check the binding, you can use "touchscreen-x-mm"

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 I.e. without need for calibration. Some people prefer to calibrate their touchscreens; because

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 I.e. without need for calibration. Some people prefer to calibrate their touchscreens; because

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > As long as it is small (I expect <1.01 = 1% error in scale) it is > barely noticeable. > > Therefore, I asked before: how big in pixels is your finger or stylus? > Does this effect matter? If I draw a line in gimp, I don't expect it to have steps because of "barely noticeable" errors. >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > As long as it is small (I expect <1.01 = 1% error in scale) it is > barely noticeable. > > Therefore, I asked before: how big in pixels is your finger or stylus? > Does this effect matter? If I draw a line in gimp, I don't expect it to have steps because of "barely noticeable" errors. >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Dmitry, > Am 20.02.2017 um 02:07 schrieb Dmitry Torokhov : > > Hi Nikolaus, > > On Sat, Feb 18, 2017 at 12:32:48PM +0100, H. Nikolaus Schaller wrote: >> Hi Dmitry, >> >>> Am 17.02.2017 um 21:40 schrieb Dmitry Torokhov : >>> >>> Hi

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Dmitry, > Am 20.02.2017 um 02:07 schrieb Dmitry Torokhov : > > Hi Nikolaus, > > On Sat, Feb 18, 2017 at 12:32:48PM +0100, H. Nikolaus Schaller wrote: >> Hi Dmitry, >> >>> Am 17.02.2017 um 21:40 schrieb Dmitry Torokhov : >>> >>> Hi Nikolaus, >>> >>> On Sat, Jan 28, 2017 at 10:44:35PM

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Sebastian, > Am 19.02.2017 um 21:15 schrieb Sebastian Reichel : > > Hi, > > On Sun, Feb 19, 2017 at 01:07:26PM +0100, H. Nikolaus Schaller wrote: >> I don't really remember when we noticed it first. Maybe it was >> back in tslib times some years ago where setting the

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Sebastian, > Am 19.02.2017 um 21:15 schrieb Sebastian Reichel : > > Hi, > > On Sun, Feb 19, 2017 at 01:07:26PM +0100, H. Nikolaus Schaller wrote: >> I don't really remember when we noticed it first. Maybe it was >> back in tslib times some years ago where setting the sensitivity >> threshold

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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"). >>> >>>

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 19.02.2017 um 23:19 schrieb Pavel Machek : > > 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

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 19.02.2017 um 23:19 schrieb Pavel Machek : > > 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,

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Nikolaus, On Sat, Feb 18, 2017 at 12:32:48PM +0100, H. Nikolaus Schaller wrote: > Hi Dmitry, > > > Am 17.02.2017 um 21:40 schrieb Dmitry Torokhov : > > > > Hi Nikolaus, > > > > On Sat, Jan 28, 2017 at 10:44:35PM +0100, H. Nikolaus Schaller wrote: > >> Hi Dmitry, >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Nikolaus, On Sat, Feb 18, 2017 at 12:32:48PM +0100, H. Nikolaus Schaller wrote: > Hi Dmitry, > > > Am 17.02.2017 um 21:40 schrieb Dmitry Torokhov : > > > > Hi Nikolaus, > > > > On Sat, Jan 28, 2017 at 10:44:35PM +0100, H. Nikolaus Schaller wrote: > >> Hi Dmitry, > >> > >>> Am 28.01.2017 um

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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

Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 precision will > > matter. > > Really? Really. > Example: >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 precision will > > matter. > > Really? Really. > Example: >

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 19.02.2017 um 21:57 schrieb Pavel Machek : > > 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,

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 19.02.2017 um 21:57 schrieb Pavel Machek : > > 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 precision

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 precision will matter. > >>> and floating point in kernel is hard. Also > >>> you'd

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

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 precision will matter. > >>> and floating point in kernel is hard. Also > >>> you'd

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, On Sun, Feb 19, 2017 at 01:07:26PM +0100, H. Nikolaus Schaller wrote: > I don't really remember when we noticed it first. Maybe it was > back in tslib times some years ago where setting the sensitivity > threshold made problems. We then carried along our patch for a > long time in our local

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, On Sun, Feb 19, 2017 at 01:07:26PM +0100, H. Nikolaus Schaller wrote: > I don't really remember when we noticed it first. Maybe it was > back in tslib times some years ago where setting the sensitivity > threshold made problems. We then carried along our patch for a > long time in our local

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 19.02.2017 um 20:05 schrieb Pavel Machek : > > Hi! > >> Hi Pavel, >> I love discussions with you :) > > Unfortunately I can't say the same. > >>> Am 19.02.2017 um 18:15 schrieb Pavel Machek : >>> >>> > Solve it properly. That means passing

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 19.02.2017 um 20:05 schrieb Pavel Machek : > > Hi! > >> Hi Pavel, >> I love discussions with you :) > > Unfortunately I can't say the same. > >>> Am 19.02.2017 um 18:15 schrieb Pavel Machek : >>> >>> > Solve it properly. That means passing calibration > data from

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > Hi Pavel, > I love discussions with you :) Unfortunately I can't say the same. > > Am 19.02.2017 um 18:15 schrieb Pavel Machek : > > > > > >>> Solve it properly. That means passing calibration > >>> data from kernel to userland. > >> > >> As written before, the really

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > Hi Pavel, > I love discussions with you :) Unfortunately I can't say the same. > > Am 19.02.2017 um 18:15 schrieb Pavel Machek : > > > > > >>> Solve it properly. That means passing calibration > >>> data from kernel to userland. > >> > >> As written before, the really proper solution

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, I love discussions with you :) > Am 19.02.2017 um 18:15 schrieb Pavel Machek : > > >>> Solve it properly. That means passing calibration >>> data from kernel to userland. >> >> As written before, the really proper solution would be to provide floating >> or fixed point

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, I love discussions with you :) > Am 19.02.2017 um 18:15 schrieb Pavel Machek : > > >>> Solve it properly. That means passing calibration >>> data from kernel to userland. >> >> As written before, the really proper solution would be to provide floating >> or fixed point subpixel input

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

> > Solve it properly. That means passing calibration > > data from kernel to userland. > > As written before, the really proper solution would be to provide floating > or fixed point subpixel input events. Not arbitrarily scaling up in kernel > and leaving downscaling to user space (where

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

> > Solve it properly. That means passing calibration > > data from kernel to userland. > > As written before, the really proper solution would be to provide floating > or fixed point subpixel input events. Not arbitrarily scaling up in kernel > and leaving downscaling to user space (where

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

HI Pavel, > Am 19.02.2017 um 15:17 schrieb Pavel Machek : > > Hi! > >> About loosing precision: there is already noise (jitter) in >> real-world devices so that you can't achieve subpixel precision >> anyways (unless your panel has a very low resolution). Please see my >> answer

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

HI Pavel, > Am 19.02.2017 um 15:17 schrieb Pavel Machek : > > Hi! > >> About loosing precision: there is already noise (jitter) in >> real-world devices so that you can't achieve subpixel precision >> anyways (unless your panel has a very low resolution). Please see my >> answer to Dmitry some

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > About loosing precision: there is already noise (jitter) in > real-world devices so that you can't achieve subpixel precision > anyways (unless your panel has a very low resolution). Please see my > answer to Dmitry some mails ago. Maybe you can achieve better precision with averaging.

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi! > About loosing precision: there is already noise (jitter) in > real-world devices so that you can't achieve subpixel precision > anyways (unless your panel has a very low resolution). Please see my > answer to Dmitry some mails ago. Maybe you can achieve better precision with averaging.

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Sebastian, > Am 19.02.2017 um 00:44 schrieb Sebastian Reichel : > > Hi, > > On Sat, Feb 18, 2017 at 12:33:34PM +0100, H. Nikolaus Schaller wrote: >> Hi Sebastian, >> >>> Am 18.02.2017 um 04:22 schrieb Sebastian Reichel : >>> >>> Hi, >>> >>> On Fri, Feb

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Sebastian, > Am 19.02.2017 um 00:44 schrieb Sebastian Reichel : > > Hi, > > On Sat, Feb 18, 2017 at 12:33:34PM +0100, H. Nikolaus Schaller wrote: >> Hi Sebastian, >> >>> Am 18.02.2017 um 04:22 schrieb Sebastian Reichel : >>> >>> Hi, >>> >>> On Fri, Feb 17, 2017 at 12:40:41PM -0800, Dmitry

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 18.02.2017 um 23:54 schrieb Pavel Machek : > > On Sat 2017-02-18 20:17:09, H. Nikolaus Schaller wrote: >> >>> Am 18.02.2017 um 19:08 schrieb Pavel Machek : >>> > And I agree that kernel should _not_ attempt rescaling itself, as it > would lose

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi Pavel, > Am 18.02.2017 um 23:54 schrieb Pavel Machek : > > On Sat 2017-02-18 20:17:09, H. Nikolaus Schaller wrote: >> >>> Am 18.02.2017 um 19:08 schrieb Pavel Machek : >>> > And I agree that kernel should _not_ attempt rescaling itself, as it > would lose precision. With

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, On Sat, Feb 18, 2017 at 12:33:34PM +0100, H. Nikolaus Schaller wrote: > Hi Sebastian, > > > Am 18.02.2017 um 04:22 schrieb Sebastian Reichel : > > > > Hi, > > > > On Fri, Feb 17, 2017 at 12:40:41PM -0800, Dmitry Torokhov wrote: > >>> AFAIK there is no mainline board using

Re: [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation

Hi, On Sat, Feb 18, 2017 at 12:33:34PM +0100, H. Nikolaus Schaller wrote: > Hi Sebastian, > > > Am 18.02.2017 um 04:22 schrieb Sebastian Reichel : > > > > Hi, > > > > On Fri, Feb 17, 2017 at 12:40:41PM -0800, Dmitry Torokhov wrote: > >>> AFAIK there is no mainline board using the DT except

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