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Commit 7eb5ca09 authored by Peter Hutterer's avatar Peter Hutterer Committed by Dmitry Torokhov
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Input: clarify we want BTN_TOOL_<name> on proximity 



This explicitly states behavior we already use for some touchpads and
tablet devices.

Signed-off-by: default avatarPeter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent d63b0f0c

Documentation/input/event-codes.txt

+4 −0
Original line number Original line Diff line number Diff line
@@ -173,6 +173,10 @@ A few EV_ABS codes have special meanings: 
    proximity of the device and while the value of the BTN_TOUCH code is 0. If

    proximity of the device and while the value of the BTN_TOUCH code is 0. If

    the input device may be used freely in three dimensions, consider ABS_Z

    the input device may be used freely in three dimensions, consider ABS_Z

    instead.

    instead.

  - BTN_TOOL_<name> should be set to 1 when the tool comes into detectable

    proximity and set to 0 when the tool leaves detectable proximity.

    BTN_TOOL_<name> signals the type of tool that is currently detected by the

    hardware and is otherwise independent of ABS_DISTANCE and/or BTN_TOUCH.





* ABS_MT_<name>:

* ABS_MT_<name>:

  - Used to describe multitouch input events. Please see

  - Used to describe multitouch input events. Please see