1libinput-measure-touchpad-preGsesnuerrea(l1)CommanldisbiMnapnuuta-lmeasure-touchpad-pressure(1)
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NAME

6       libinput-measure-touchpad-pressure  -  measure  pressure  properties of
7       devices
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SYNOPSIS

10       libinput     measure     touchpad-pressure      [--help]      [options]
11       [/dev/input/event0]
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DESCRIPTION

14       The  libinput  measure  touchpad-pressure tool measures the pressure of
15       touches on a touchpad. This is an interactive tool. When executed,  the
16       tool  will  prompt  the user to interact with the touchpad. On termina‐
17       tion, the tool prints a summary of the pressure values seen. This  data
18       should be attached to any pressure-related bug report.
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20       For  a  full  description  on how libinput's pressure-to-click behavior
21       works, see the  online  documentation  here:  https://wayland.freedesk‐
22       top.org/libinput/doc/latest/touchpad_pressure.html   and   https://way‐
23       land.freedesktop.org/libinput/doc/latest/palm_detection.html
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25       This is a debugging tool only, its output may change at  any  time.  Do
26       not rely on the output.
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28       This  tool  usually  needs  to  be  run  as  root to have access to the
29       /dev/input/eventX nodes.
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OPTIONS

32       If a device node is given, this tool opens that device node. Otherwise,
33       this  tool  searches  for the first node that looks like a touchpad and
34       uses that node.
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36       --help  Print help
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38       --touch-thresholds="down:up"
39               Set the logical touch  pressure  thresholds  to  down  and  up,
40               respectively.  When  a touch exceeds the pressure in down it is
41               considered logically down. If a touch  is  logically  down  and
42               goes  below  the pressure in up, it is considered logically up.
43               The thresholds have to be in  device-specific  pressure  values
44               and it is required that down >= up.
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46       --palm-threshold=N
47               Assume  a  palm  threshold  of  N.   The threshold has to be in
48               device-specific pressure values.
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50       --thumb-threshold=N
51               Assume a thumb threshold of N.  The  threshold  has  to  be  in
52               device-specific pressure values.
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54       If  the  touch-thresholds  or the palm-threshold are not provided, this
55       tool uses the thresholds provided by the device quirks (if any) or  the
56       built-in defaults.
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LIBINPUT

59       Part of the libinput(1) suite
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63                                         libinput-measure-touchpad-pressure(1)