libinput-m...d-pressure(1)

📦
version 1.32.0 · 2 versions
, in alpine 3.24, arch rolling, centos-stream 10, fedora 43, fedora 44, nixos 26.05, nixpkgs unstable, ubuntu resolute, ubuntu stonking

💖 libinput-m...d-pressure(1) 💖

okay so bestie, welcome to the General Commands Manual page for libinput-measure-touchpad-pressure, which is genuinely one of the cutest little debugging tools in the whole libinput family. grab a snack, we're measuring vibes. 🎀

✨ NAME ✨

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

🌸 SYNOPSIS 🌸

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

🦋 DESCRIPTION 🦋

So the libinput measure touchpad-pressure tool measures the pressure of touches on a touchpad. it's an interactive tool, okay? like, not a "run it and walk away" situation. when you execute it, it will prompt you to interact with your touchpad — yes, that means you, bestie, touching the touchpad with your actual fingers. 💅

when it terminates, the tool prints a summary of the pressure values it saw. and like… this data? it should be attached to any pressure-related bug report. fr fr, do not skip this step, the maintainers need the receipts. 📋✨

if you want the full description of how libinput's pressure-to-click behavior works, go read the online documentation here:

⚠️ not me having to say this but: this is a debugging tool only. its output may change at any time. do not rely on the output. it's giving chaotic on purpose, periodt. 💀

also — this tool usually needs to be run as root so it can actually access the /dev/input/eventX nodes. no root, no touchy. 🙈

💅 OPTIONS 💅

okay so first thing, the device node situation:

  • if a device node is given, this tool opens that device node. straightforward, iconic.
  • otherwise, this tool searches for the first node that looks like a touchpad and uses that one. it just picks one, no cap. 🍓

here are your actual options:

  • --help — print help. the classic. your bestie in every situation. 🫶
  • --touch-thresholds="down:up" — set the logical touch pressure thresholds to down and up, respectively. so here's the tea: when a touch exceeds the pressure in down, it's considered logically down. and if a touch is logically down and then goes below the pressure in up, it's considered logically up. these thresholds have to be in device-specific pressure values, and it is required that down >= up. like, that's not optional, that's the rule. ⭐
  • --palm-threshold=N — assume a palm threshold of N. the threshold has to be in device-specific pressure values. 🌸
  • --thumb-threshold=N — assume a thumb threshold of N. the threshold has to be in device-specific pressure values. 🌈

and here's the little plot twist: 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. so like, it's got your back either way, bestie. 🧚

👑 LIBINPUT 👑

Part of the libinput(1) suite. iykyk. 💜

and that's the whole page!! mwah 💋 this one lives in the General Commands Manual, and the footer on the original was literally just libinput-m...d-pressure(1) all over again — so hey, consider yourself signed off, you absolute icon. go forth and measure those pressure values, main character. slay ✨

📦 where this page comes from