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linux_old1/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt

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Input: add common DT binding for touchscreens Add common DT binding documentation for touchscreen devices and implement input_parse_touchscreen_of_params, which parses the common properties and configures the input device accordingly. The method currently does not interpret the axis inversion properties, since there is no matching flag in the generic linux input device. Reviewed-by: Pavel Machek <pavel@ucw.cz> Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-29 14:51:53 +08:00
General Touchscreen Properties:
Optional properties for Touchscreens:
- touchscreen-size-x : horizontal resolution of touchscreen
(in pixels)
- touchscreen-size-y : vertical resolution of touchscreen
(in pixels)
- touchscreen-max-pressure : maximum reported pressure (arbitrary range
dependent on the controller)
- touchscreen-fuzz-x : horizontal noise value of the absolute input
device (in pixels)
- touchscreen-fuzz-y : vertical noise value of the absolute input
device (in pixels)
- touchscreen-fuzz-pressure : pressure noise value of the absolute input
device (arbitrary range dependent on the
controller)
- touchscreen-inverted-x : X axis is inverted (boolean)
- touchscreen-inverted-y : Y axis is inverted (boolean)
Input: touchscreen DT binding - add touchscreen-swapped-x-y property On devices with a native portrait screen a landscape touchscreen / digitizer may be used, this happens e.g. on ebook readers. In this case the X and Y axis of the touchscreen are swapped compared to the screen. Add a touchscreen-swapped-x-y property which drivers can use to see if they need to swap the axis to make the touchscreen coordinates match the screen coordinates. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-22 11:39:19 +08:00
- touchscreen-swapped-x-y : X and Y axis are swapped (boolean)
Swapping is done after inverting the axis
Input: add common DT binding for touchscreens Add common DT binding documentation for touchscreen devices and implement input_parse_touchscreen_of_params, which parses the common properties and configures the input device accordingly. The method currently does not interpret the axis inversion properties, since there is no matching flag in the generic linux input device. Reviewed-by: Pavel Machek <pavel@ucw.cz> Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-29 14:51:53 +08:00
Deprecated properties for Touchscreens:
- x-size : deprecated name for touchscreen-size-x
- y-size : deprecated name for touchscreen-size-y
- moving-threshold : deprecated name for a combination of
touchscreen-fuzz-x and touchscreen-fuzz-y
- contact-threshold : deprecated name for touchscreen-fuzz-pressure
- x-invert : deprecated name for touchscreen-inverted-x
- y-invert : deprecated name for touchscreen-inverted-y