libinput-measure-touchpad-pressure(1) General Commands Manual libinput-measure-touchpad-pressure(1)

# [NAME](#NAME)

libinput-measure-touchpad-pressure - measure pressure properties of devices

# [SYNOPSIS](#SYNOPSIS)

**libinput measure touchpad-pressure \[--help] \[options]** \[*/dev/input/event0]*

# [DESCRIPTION](#DESCRIPTION)

The **libinput measure touchpad-pressure** tool measures the pressure of touches on a touchpad. This is an interactive tool. When executed, the tool will prompt the user to interact with the touchpad. On termination, the tool prints a summary of the pressure values seen. This data should be attached to any pressure-related bug report.

For a full description on how libinput's pressure-to-click behavior works, see the online documentation here: *https://wayland.freedesktop.org/libinput/doc/latest/touchpad-pressure.html* and *https://wayland.freedesktop.org/libinput/doc/latest/palm-detection.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](#OPTIONS)

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**](#help)

Print help

[**--touch-thresholds=*"down:up"***](#touch)

Set the logical touch pressure thresholds to *down* and *up,* respectively. When a touch exceeds the pressure in *down* it is considered logically down. If a touch is logically down and goes below the pressure in *up,* it is considered logically up. The thresholds have to be in device-specific pressure values and it is required that *down* >= *up.*

[**--palm-threshold=*N***](#palm)

Assume a palm threshold of *N.* The threshold has to be in device-specific pressure values.

[**--thumb-threshold=*N***](#thumb)

Assume a thumb threshold of *N.* The threshold has to be in device-specific pressure values.

If the touch-thresholds or the palm-threshold are not provided, this tool uses the thresholds provided by the device quirks (if any) or the built-in defaults.

# [LIBINPUT](#LIBINPUT)

Part of the [**libinput(1)**](/man/os/libinput/libinput.1) suite

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Document: libinput-measure-touchpad-pressure(1) from libinput 1.32.0-r0 (Chainguard OS)
Source: https://gitlab.freedesktop.org/libinput/libinput