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 touchpad. 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 termination, 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://wayland.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-measure-touchpad-size(1)