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libinput-debug-events(1)	libinput Manual	      libinput-debug-events(1)

NAME
       libinput-debug-events - debug helper for	libinput

SYNOPSIS
       libinput	debug-events [options]

       libinput	debug-events [options] --udev <seat>

       libinput	 debug-events [options]	[--device] /dev/input/event0 [/dev/in-
       put/event1...]

DESCRIPTION
       The libinput debug-events tool creates a	libinput  context  and	prints
       all events from these devices.

       This  is	 a  debugging tool only, its output may	change at any time. Do
       not rely	on the output.

       This tool usually needs to be  run  as  root  to	 have  access  to  the
       /dev/input/eventX nodes.

OPTIONS
       --device	/dev/input/event0
	       Use the given device(s) with the	path backend. The --device ar-
	       gument may be omitted.

       --grab  Exclusively  grab  all opened devices. This will	prevent	events
	       from being delivered to the host	system.

       --help  Print help

       --quiet Only print libinput messages, don't print  anything  from  this
	       tool. This is useful in combination with	--verbose for internal
	       state debugging.

       --show-keycodes
	       Key events shown	by this	tool are partially obfuscated to avoid
	       passwords  and  other  sensitive	 information showing up	in the
	       output. Use the --show-keycodes argument	to make	 all  keycodes
	       visible.

       --udev <seat>
	       Use  the	udev backend to	listen for device notifications	on the
	       given seat.  The	 default  behavior  is	equivalent  to	--udev
	       "seat0".

       --verbose
	       Use verbose output

   libinput configuration options
       --apply-to="pattern"
	       Configuration  options  are  only applied where the device name
	       matches the pattern. This pattern has no	effect on  the	--dis-
	       able-sendevents option.

       --disable-sendevents="pattern"
	       Set the send-events option to disabled for the devices matching
	       patterns.   This	option is not affected by the --apply-to="pat-
	       tern" option.

       --enable-drag|--disable-drag
	       Enable or disable tap-and-drag

       --enable-drag-lock|--disable-drag-lock
	       Enable  (in  timeout   mode)   or   disable   drag-lock	 --en-
	       able-drag-lock=[sticky|timeout]	Enable	drag-lock in sticky or
	       timeout mode

       --enable-dwt|--disable-dwt
	       Enable or disable disable-while-typing

       --enable-dwtp|--disable-dwtp
	       Enable or disable disable-while-trackpointing

       --enable-left-handed|--disable-left-handed
	       Enable or disable left handed button configuration

       --enable-middlebutton|--disable-middlebutton
	       Enable or disable middle	button emulation

       --enable-natural-scrolling|--disable-natural-scrolling
	       Enable or disable natural scrolling

       --enable-scroll-button-lock|--disable-scroll-button-lock
	       Enable or disable the scroll button lock

       --enable-tap|--disable-tap
	       Enable or disable tap-to-click

       --set-area="x1/y1 x2/y2"
	       Set the tablet area to  the  rectangle  described  by  the  two
	       points  x1/y1  and  x2/y2. All coordinates must be in the range
	       [0.0, 1.0].

       --set-calibration="1.0 0.0 0.0 0.0 1.0 0.0"
	       Set the first 6 elements	of a 3x3 matrix	to  use	 for  calibra-
	       tion. The third row of the matrix is always "0.0	0.0 0.1".

       --set-click-method=[none|clickfinger|buttonareas]
	       Set the desired click method

       --set-clickfinger-map=[lrm|lmr]
	       Set button mapping for clickfinger

       --set-custom-points="<value>;...;<value>"
	       Sets  the  n points defining a custom acceleration function The
	       points are defined in a semicolon-separated  list  of  floating
	       point  non-negative  numbers. Defaults to "0.0;1.0".  This only
	       applies to the custom profile.

       --set-custom-step=<value>
	       Sets the	distance along the x-axis between each point, starting
	       from 0.	Defaults to 1.0.  This only applies to the custom pro-
	       file.

       --set-custom-type=[fallback|motion|scroll]
	       Sets the	type of	the custom acceleration	function.  Defaults to
	       fallback.  This only applies to the custom profile.

       --set-pressure-range=<min>:<max>
	       Set the tablet tool pressure range to min:max. min and max must
	       be in range [0.0, 1.0].

       --set-profile=[adaptive|flat|custom]
	       Set pointer acceleration	profile

       --set-rotation-angle=<degrees>
	       Set the rotation	angle in degrees (0 to 360).

       --set-scroll-button=BTN_MIDDLE
	       Set the button to the given button code

       --set-scroll-method=[none|twofinger|edge|button]
	       Set the desired scroll method

       --set-speed=<value>
	       Set pointer acceleration	speed. The allowed range is  [-1,  1].
	       This only applies to the	flat or	adaptive profile.

       --set-tap-map=[lrm|lmr]
	       Set button mapping for tapping

NOTES
       Events  shown  by  this tool may	not correspond to the events seen by a
       different user of libinput. This	tool initializes a separate context.

LIBINPUT
       Part of the libinput(1) suite

libinput 1.27.1					      libinput-debug-events(1)

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