Input: define INPUT_PROP_ACCELEROMETER behavior (33096777) · Commits · 戴 / test

Spell out what this property means to userspace. If the property is set, all directional axes must be accelerometer axes, any other axes are left as-is. This allows an accelerometer device to e.g. have an ABS_WHEEL. It is not permitted to mix normal directional axes and accelerometer axes on the same device node. Signed-off-by:

Peter Hutterer <peter.hutterer@who-t.net> Acked-by:

Jiri Kosina <jkosina@suse.cz> Reviewed-by:

Bastien Nocera <hadess@hadess.net> Signed-off-by:

Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/input/event-codes.txt

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -294,6 +294,12 @@ accordingly. This property does not affect kernel behavior.
	The kernel does not provide button emulation for such devices but treats		The kernel does not provide button emulation for such devices but treats
	them as any other INPUT_PROP_BUTTONPAD device.		them as any other INPUT_PROP_BUTTONPAD device.

			INPUT_PROP_ACCELEROMETER
			-------------------------
			Directional axes on this device (absolute and/or relative x, y, z) represent
			accelerometer data. All other axes retain their meaning. A device must not mix
			regular directional axes and accelerometer axes on the same event node.

	Guidelines:		Guidelines:
	==========		==========
	The guidelines below ensure proper single-touch and multi-finger functionality.		The guidelines below ensure proper single-touch and multi-finger functionality.

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