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/input/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 argument 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 --disable-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="pattern" 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  --enable-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 calibration. 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 profile.

       --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-sendevents=[disabled|enabled|disabled-on-external-mouse]
               Set the given sendevents mode.  This  option  overrides  --disable-sendevents="pattern"  for  any
               devices it matches via the --apply-to="pattern" option.

       --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 1.28.1                                                                         libinput-debug-events(1)