1libinput-measure-touch-size(1G)eneral Commands Manulailbinput-measure-touch-size(1)
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NAME

6       libinput-measure-touch-size  -  measure  touch  size and orientation of
7       devices
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SYNOPSIS

10       libinput measure touch-size [--help] [options] [/dev/input/event0]
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DESCRIPTION

13       The libinput measure touch-size tool measures the size and  orientation
14       of  a  touch  as  provided by the kernel.  This is an interactive tool.
15       When executed, the tool will prompt the user to interact with the touch
16       device.  On  termination, the tool prints a summary of the values seen.
17       This data should be attached to any touch-size-related bug report.
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19       This is a debugging tool only, its output may change at  any  time.  Do
20       not rely on the output.
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22       This  tool  usually  needs  to  be  run  as  root to have access to the
23       /dev/input/eventX nodes.
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OPTIONS

26       If a device node is given, this tool opens that device node. Otherwise,
27       this  tool  searches for the first node that looks like a touch-capable
28       device and uses that node.
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30       --help  Print help
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32       --touch-thresholds="down:up"
33               Set the logical touch size thresholds to down and  up,  respecā€
34               tively.  When a touch exceeds the size in down it is considered
35               logically down. If a touch is logically down and goes below the
36               size  in up, it is considered logically up. The thresholds have
37               to be in device-specific pressure values  and  it  is  required
38               that down >= up.
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40       --palm-threshold=N
41               Assume  a  palm  threshold  of  N.   The threshold has to be in
42               device-specific pressure values.
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44       If the touch-thresholds or the palm-threshold are  not  provided,  this
45       tool  uses the thresholds provided by the device quirks (if any) or the
46       built-in defaults.
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LIBINPUT

49       Part of the libinput(1) suite
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53                                                libinput-measure-touch-size(1)
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