From: Pavel Machek <pavel@ucw.cz>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: "Andreas Kemnade" <andreas@kemnade.info>,
"Mark Rutland" <mark.rutland@arm.com>,
"Andrey Gelman" <andrey.gelman@compulab.co.il>,
"Michel Verlaan" <michel.verl@gmail.com>,
"Nick Dyer" <nick@shmanahar.org>,
"Tony Lindgren" <tony@atomide.com>,
linux-kernel@vger.kernel.org,
"Benjamin Tissoires" <benjamin.tissoires@redhat.com>,
linux-omap@vger.kernel.org,
"Russell King" <linux@armlinux.org.uk>,
"Aaro Koskinen" <aaro.koskinen@nokia.com>,
"Javier Martinez Canillas" <javier@osg.samsung.com>,
"Igor Grinberg" <grinberg@compulab.co.il>,
"Hans Verkuil" <hans.verkuil@cisco.com>,
linux-input@vger.kernel.org, devicetree@vger.kernel.org,
"Pali Rohár" <pali.rohar@gmail.com>,
"Arnd Bergmann" <arnd@arndb.de>,
"Eric Engestrom" <eric@engestrom.ch>,
"Hans de Goede" <hdegoede@redhat.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Mika Penttilä" <mika.penttila@nextfour.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Petr Cvek" <petr.cvek@tul.cz>,
"Siebren Vroegindeweij" <siebren.vroegindeweij@hotmail.com>,
"Haibo Chen" <haibo.chen@freescale.com>,
"Dmitry Torokhov" <dmitry.torokhov@gmail.com>,
"Sebastian Reichel" <sre@kernel.org>,
linux-iio@vger.kernel.org, "Andrew F. Davis" <afd@ti.com>,
"Mark Brown" <broonie@kernel.org>,
"Benoît Cousson" <bcousson@baylibre.com>,
kernel@pyra-handheld.com, "Michael Welling" <mwelling@ieee.org>,
letux-kernel@openphoenux.org,
"Jonathan Cameron" <jic23@kernel.org>,
"Alexander Stein" <alexander.stein@systec-electronic.com>
Subject: Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation
Date: Mon, 20 Feb 2017 20:32:28 +0100 [thread overview]
Message-ID: <20170220193228.GB23745@amd> (raw)
In-Reply-To: <EE81034E-C10E-4E8B-B026-B3E92C0DAA19@goldelico.com>
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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; because of
per-device variations, that gives better precision.
You can pass default calibration data from device tree to kernel to
userland. But you can not force people to use that calibration.
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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WARNING: multiple messages have this Message-ID (diff)
From: Pavel Machek <pavel@ucw.cz>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: "Andreas Kemnade" <andreas@kemnade.info>,
"Mark Rutland" <mark.rutland@arm.com>,
"Andrey Gelman" <andrey.gelman@compulab.co.il>,
"Michel Verlaan" <michel.verl@gmail.com>,
"Nick Dyer" <nick@shmanahar.org>,
"Tony Lindgren" <tony@atomide.com>,
linux-kernel@vger.kernel.org,
"Benjamin Tissoires" <benjamin.tissoires@redhat.com>,
linux-omap@vger.kernel.org,
"Russell King" <linux@armlinux.org.uk>,
"Aaro Koskinen" <aaro.koskinen@nokia.com>,
"Javier Martinez Canillas" <javier@osg.samsung.com>,
"Igor Grinberg" <grinberg@compulab.co.il>,
"Hans Verkuil" <hans.verkuil@cisco.com>,
linux-input@vger.kernel.org, devicetree@vger.kernel.org,
"Pali Rohár" <pali.rohar@gmail.com>,
"Arnd Bergmann" <arnd@arndb.de>,
"Eric Engestrom" <eric@engestrom.ch>,
"Hans de Goede" <hdegoede@redhat.com>
Subject: Re: [Letux-kernel] [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation
Date: Mon, 20 Feb 2017 20:32:28 +0100 [thread overview]
Message-ID: <20170220193228.GB23745@amd> (raw)
In-Reply-To: <EE81034E-C10E-4E8B-B026-B3E92C0DAA19@goldelico.com>
[-- Attachment #1: Type: text/plain, Size: 671 bytes --]
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; because of
per-device variations, that gives better precision.
You can pass default calibration data from device tree to kernel to
userland. But you can not force people to use that calibration.
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
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next prev parent reply other threads:[~2017-02-20 19:32 UTC|newest]
Thread overview: 209+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-28 14:53 [PATCH v9 0/8] drivers: touchscreen: tsc2007 and ads7846/tsc2046 improvements (use common touchscreen bindings, pre-calibration, spi fix and provide iio raw values) H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2016-12-28 14:53 ` [PATCH v9 1/8] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2017-01-09 17:43 ` Rob Herring
2017-01-09 17:43 ` Rob Herring
2017-01-28 19:33 ` Dmitry Torokhov
2017-01-28 19:33 ` Dmitry Torokhov
2017-01-28 21:44 ` H. Nikolaus Schaller
2017-01-28 21:44 ` H. Nikolaus Schaller
2017-01-28 21:44 ` H. Nikolaus Schaller
2017-02-17 20:40 ` Dmitry Torokhov
2017-02-17 20:40 ` Dmitry Torokhov
2017-02-18 3:22 ` Sebastian Reichel
2017-02-18 3:22 ` Sebastian Reichel
2017-02-18 11:33 ` H. Nikolaus Schaller
2017-02-18 11:33 ` H. Nikolaus Schaller
2017-02-18 23:44 ` Sebastian Reichel
2017-02-18 23:44 ` Sebastian Reichel
2017-02-19 12:07 ` H. Nikolaus Schaller
2017-02-19 12:07 ` H. Nikolaus Schaller
2017-02-19 20:15 ` Sebastian Reichel
2017-02-19 20:15 ` Sebastian Reichel
2017-02-20 16:49 ` H. Nikolaus Schaller
2017-02-20 16:49 ` H. Nikolaus Schaller
2017-02-18 7:45 ` [Letux-kernel] " Andreas Kemnade
2017-02-18 7:45 ` Andreas Kemnade
2017-02-18 9:15 ` Pavel Machek
2017-02-18 9:15 ` Pavel Machek
2017-02-18 11:33 ` H. Nikolaus Schaller
2017-02-18 11:33 ` H. Nikolaus Schaller
2017-02-18 18:08 ` Pavel Machek
2017-02-18 18:08 ` Pavel Machek
2017-02-18 19:17 ` H. Nikolaus Schaller
2017-02-18 19:17 ` H. Nikolaus Schaller
2017-02-18 22:54 ` Pavel Machek
2017-02-18 22:54 ` Pavel Machek
2017-02-19 12:05 ` H. Nikolaus Schaller
2017-02-19 12:05 ` H. Nikolaus Schaller
2017-02-19 14:17 ` Pavel Machek
2017-02-19 14:17 ` Pavel Machek
2017-02-19 17:04 ` H. Nikolaus Schaller
2017-02-19 17:04 ` H. Nikolaus Schaller
2017-02-19 17:15 ` Pavel Machek
2017-02-19 17:15 ` Pavel Machek
2017-02-19 17:51 ` H. Nikolaus Schaller
2017-02-19 17:51 ` H. Nikolaus Schaller
2017-02-19 19:05 ` Pavel Machek
2017-02-19 19:05 ` Pavel Machek
2017-02-19 19:31 ` H. Nikolaus Schaller
2017-02-19 19:31 ` H. Nikolaus Schaller
2017-02-19 20:57 ` Pavel Machek
2017-02-19 20:57 ` Pavel Machek
2017-02-19 22:01 ` H. Nikolaus Schaller
2017-02-19 22:01 ` H. Nikolaus Schaller
2017-02-19 22:19 ` Pavel Machek
2017-02-19 22:19 ` Pavel Machek
2017-02-20 16:50 ` H. Nikolaus Schaller
2017-02-20 16:50 ` H. Nikolaus Schaller
2017-02-20 19:29 ` Pavel Machek
2017-02-20 19:29 ` Pavel Machek
2017-02-20 20:20 ` H. Nikolaus Schaller
2017-02-20 20:20 ` H. Nikolaus Schaller
2017-02-20 22:26 ` Petr Cvek
2017-02-20 22:26 ` Petr Cvek
2017-02-21 8:29 ` H. Nikolaus Schaller
2017-02-21 8:29 ` H. Nikolaus Schaller
2017-02-21 8:29 ` H. Nikolaus Schaller
2017-02-19 22:29 ` [Letux-kernel] " Andreas Kemnade
2017-02-19 22:29 ` Andreas Kemnade
2017-02-19 22:39 ` Pavel Machek
2017-02-19 22:39 ` Pavel Machek
2017-02-20 16:50 ` H. Nikolaus Schaller
2017-02-20 16:50 ` H. Nikolaus Schaller
2017-02-20 19:32 ` Pavel Machek [this message]
2017-02-20 19:32 ` Pavel Machek
2017-02-20 20:22 ` H. Nikolaus Schaller
2017-02-20 20:22 ` H. Nikolaus Schaller
2017-02-20 20:50 ` H. Nikolaus Schaller
2017-02-20 20:50 ` H. Nikolaus Schaller
2017-02-18 11:32 ` H. Nikolaus Schaller
2017-02-18 11:32 ` H. Nikolaus Schaller
2017-02-18 11:32 ` H. Nikolaus Schaller
2017-02-20 1:07 ` Dmitry Torokhov
2017-02-20 1:07 ` Dmitry Torokhov
2017-02-20 16:50 ` H. Nikolaus Schaller
2017-02-20 16:50 ` H. Nikolaus Schaller
2017-02-20 16:50 ` H. Nikolaus Schaller
2017-02-20 19:42 ` Pali Rohár
2017-02-20 19:42 ` Pali Rohár
2017-02-20 20:35 ` H. Nikolaus Schaller
2017-02-20 20:35 ` H. Nikolaus Schaller
2017-02-20 21:07 ` Pali Rohár
2017-02-20 21:07 ` Pali Rohár
2017-02-20 21:24 ` H. Nikolaus Schaller
2017-02-20 21:24 ` H. Nikolaus Schaller
2017-02-20 21:54 ` Pali Rohár
2017-02-20 21:54 ` Pali Rohár
2017-02-21 6:42 ` H. Nikolaus Schaller
2017-02-21 6:42 ` H. Nikolaus Schaller
2017-02-21 8:53 ` Pali Rohár
2017-02-21 8:53 ` Pali Rohár
2017-02-20 21:08 ` Pali Rohár
2017-02-20 21:08 ` Pali Rohár
2017-02-20 21:27 ` H. Nikolaus Schaller
2017-02-20 21:27 ` H. Nikolaus Schaller
2017-02-20 21:50 ` Dmitry Torokhov
2017-02-20 21:50 ` Dmitry Torokhov
2017-02-20 21:50 ` Dmitry Torokhov
2017-02-20 22:21 ` Petr Cvek
2017-02-20 22:21 ` Petr Cvek
2017-02-20 22:24 ` Dmitry Torokhov
2017-02-20 22:24 ` Dmitry Torokhov
2017-02-20 22:24 ` Dmitry Torokhov
2017-02-21 6:56 ` H. Nikolaus Schaller
2017-02-21 6:56 ` H. Nikolaus Schaller
2017-02-21 6:56 ` H. Nikolaus Schaller
2017-02-20 22:45 ` Pali Rohár
2017-02-20 22:45 ` Pali Rohár
2017-02-21 6:36 ` H. Nikolaus Schaller
2017-02-21 6:36 ` H. Nikolaus Schaller
2017-02-21 6:36 ` H. Nikolaus Schaller
2017-02-21 9:09 ` Pali Rohár
2017-02-21 9:09 ` Pali Rohár
2017-02-21 17:07 ` [Letux-kernel] " Andreas Kemnade
2017-02-21 17:07 ` Andreas Kemnade
2017-02-20 22:04 ` Pali Rohár
2017-02-20 22:04 ` Pali Rohár
2017-02-21 6:49 ` H. Nikolaus Schaller
2017-02-21 6:49 ` H. Nikolaus Schaller
2017-02-21 7:14 ` H. Nikolaus Schaller
2017-02-21 7:14 ` H. Nikolaus Schaller
2017-02-21 8:47 ` Pali Rohár
2017-02-21 8:47 ` Pali Rohár
2017-02-21 8:57 ` [Letux-kernel] " Christ van Willegen
2017-02-21 8:57 ` Christ van Willegen
2017-02-21 8:57 ` Christ van Willegen
2017-02-21 11:07 ` Pavel Machek
2017-02-21 11:07 ` Pavel Machek
2016-12-28 14:53 ` [PATCH v9 2/8] drivers:input:tsc2007: check for presence and power down tsc2007 during probe H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2017-02-17 20:52 ` Dmitry Torokhov
2017-02-17 20:52 ` Dmitry Torokhov
2016-12-28 14:53 ` [PATCH v9 3/8] DT:omap3+tsc2007: use new common touchscreen bindings H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2016-12-28 14:53 ` [PATCH v9 4/8] drivers:input:ads7846(+tsc2046): add new common binding names, pre-calibration and flipping H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2016-12-28 14:53 ` [PATCH v9 5/8] dt-bindings: input: move ads7846 bindings to touchscreen subdirectory H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2017-02-23 9:54 ` H. Nikolaus Schaller
2017-02-23 9:54 ` H. Nikolaus Schaller
2017-02-23 9:54 ` H. Nikolaus Schaller
2016-12-28 14:53 ` [PATCH v9 6/8] drivers:input:ads7846(+tsc2046): fix spi module table H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2017-01-28 19:35 ` Dmitry Torokhov
2017-01-28 19:35 ` Dmitry Torokhov
2017-01-29 8:39 ` H. Nikolaus Schaller
2017-01-29 8:39 ` H. Nikolaus Schaller
2017-01-29 18:01 ` Dmitry Torokhov
2017-01-29 18:01 ` Dmitry Torokhov
2017-01-29 18:25 ` H. Nikolaus Schaller
2017-01-29 18:25 ` H. Nikolaus Schaller
2017-01-29 18:25 ` H. Nikolaus Schaller
2017-02-01 20:20 ` H. Nikolaus Schaller
2017-02-01 20:20 ` H. Nikolaus Schaller
2017-02-01 20:20 ` H. Nikolaus Schaller
2017-02-01 21:14 ` Javier Martinez Canillas
2017-02-01 21:14 ` Javier Martinez Canillas
2017-02-01 22:28 ` Dmitry Torokhov
2017-02-01 22:28 ` Dmitry Torokhov
2017-02-01 22:50 ` Javier Martinez Canillas
2017-02-01 22:50 ` Javier Martinez Canillas
2017-02-02 5:47 ` H. Nikolaus Schaller
2017-02-02 5:47 ` H. Nikolaus Schaller
2017-02-02 5:47 ` H. Nikolaus Schaller
2016-12-28 14:53 ` [PATCH v9 7/8] DT:omap3+ads7846: use new common touchscreen bindings H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2016-12-28 14:53 ` [PATCH v9 8/8] drivers:input:tsc2007: add iio interface to read external ADC input and temperature H. Nikolaus Schaller
2016-12-28 14:53 ` H. Nikolaus Schaller
2016-12-30 20:36 ` Jonathan Cameron
2016-12-30 20:36 ` Jonathan Cameron
2017-02-17 21:27 ` Dmitry Torokhov
2017-02-17 21:27 ` Dmitry Torokhov
2017-02-18 11:35 ` H. Nikolaus Schaller
2017-02-18 11:35 ` H. Nikolaus Schaller
2017-02-18 11:35 ` H. Nikolaus Schaller
2017-01-16 6:34 ` [PATCH v9 0/8] drivers: touchscreen: tsc2007 and ads7846/tsc2046 improvements (use common touchscreen bindings, pre-calibration, spi fix and provide iio raw values) H. Nikolaus Schaller
2017-01-16 6:34 ` H. Nikolaus Schaller
2017-01-16 6:34 ` H. Nikolaus Schaller
2017-01-21 13:08 ` Jonathan Cameron
2017-01-21 13:08 ` Jonathan Cameron
2017-01-21 13:17 ` H. Nikolaus Schaller
2017-01-21 13:17 ` H. Nikolaus Schaller
2017-01-21 13:17 ` H. Nikolaus Schaller
2017-01-28 18:16 ` [Letux-kernel] " H. Nikolaus Schaller
2017-01-28 18:16 ` H. Nikolaus Schaller
2017-01-28 18:16 ` H. Nikolaus Schaller
2017-02-12 15:18 ` H. Nikolaus Schaller
2017-02-12 15:18 ` H. Nikolaus Schaller
2017-02-12 15:18 ` H. Nikolaus Schaller
2017-02-15 14:03 ` H. Nikolaus Schaller
2017-02-15 14:03 ` H. Nikolaus Schaller
2017-02-15 14:03 ` H. Nikolaus Schaller
2017-02-17 20:43 ` Dmitry Torokhov
2017-02-17 20:43 ` Dmitry Torokhov
2017-02-17 20:43 ` Dmitry Torokhov
2017-02-18 11:30 ` H. Nikolaus Schaller
2017-02-18 11:30 ` H. Nikolaus Schaller
2017-02-18 11:30 ` H. Nikolaus Schaller
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