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libinput-m...chpad-size(1)  General Commands Manual libinput-m...chpad-size(1)

NAME
       libinput-measure-touchpad-size -	measure	the size of a touchpad

SYNOPSIS
       libinput	measure	touchpad-size [--help] WxH [/dev/input/event0]

DESCRIPTION
       The  libinput  measure touchpad-size tool measures the size of a	touch-
       pad. This is an interactive tool. When executed,	the tool  will	prompt
       the  user  to  interact	with  the  touchpad. The tool records the axis
       ranges and calculates the size and resolution based on those. On	termi-
       nation, the tool	 prints	 a  hwdb  entry	 that  can  be	added  to  the
       60-evdev.hwdb file provided by system.

       For   details   see   the   online   documentation  here:  https://way-
       land.freedesktop.org/libinput/doc/latest/absolute-coordinate-
       ranges.html

       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
       This tool must be provided the physical dimensions of the device	in mm.
       For example, if your touchpad is	100mm wide and	55mm  high,  run  this
       tool as libinput	measure	touchpad-size 100x55

       If a device node	is given, this tool opens that device node. Otherwise,
       this  tool  searches  for the first node	that looks like	a touchpad and
       uses that node.

       --help  Print help

LIBINPUT
       Part of the libinput(1) suite

						    libinput-m...chpad-size(1)

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