1libinput-measure-touch-size(1G)eneral Commands Manulailbinput-measure-touch-size(1)
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6 libinput-measure-touch-size - measure touch size and orientation of
7 devices
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10 libinput measure touch-size [--help] [options] [/dev/input/event0]
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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.
18 This is a debugging tool only, its output may change at any time. Do
20 not rely on the output.
21 This tool usually needs to be run as root to have access to the
23 /dev/input/eventX nodes.
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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.
29 --help Print help
31 --touch-thresholds="down:up"
33 Set the logical touch size thresholds to down and up, respec‐
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.
39 --palm-threshold=N
41 Assume a palm threshold of N. The threshold has to be in
42 device-specific pressure values.
43 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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49 Part of the libinput(1) suite
50 libinput-measure-touch-size(1)