Files
RedBear-OS/local/recipes/libs/libinput/source/tools/libinput-measure-touchpad-pressure.man
T
vasilito f31522130f fix: comprehensive boot warnings and exceptions — fixable silenced, unfixable diagnosed
Build system (5 gaps hardened):
- COOKBOOK_OFFLINE defaults to true (fork-mode)
- normalize_patch handles diff -ruN format
- New 'repo validate-patches' command (25/25 relibc patches)
- 14 patched Qt/Wayland/display recipes added to protected list
- relibc archive regenerated with current patch chain

Boot fixes (fixable):
- Full ISO EFI partition: 16 MiB → 1 MiB (matches mini, BIOS hardcoded 2 MiB offset)
- D-Bus system bus: absolute /usr/bin/dbus-daemon path (was skipped)
- redbear-sessiond: absolute /usr/bin/redbear-sessiond path (was skipped)
- daemon framework: silenced spurious INIT_NOTIFY warnings for oneshot_async services (P0-daemon-silence-init-notify.patch)
- udev-shim: demoted INIT_NOTIFY warning to INFO (expected for oneshot_async)
- relibc: comprehensive named semaphores (sem_open/close/unlink) replacing upstream todo!() stubs
- greeterd: Wayland socket timeout 15s → 30s (compositor DRM wait)
- greeter-ui: built and linked (header guard unification, sem_compat stubs removed)
- mc: un-ignored in both configs, fixed glib/libiconv/pcre2 transitive deps
- greeter config: removed stale keymapd dependency from display/greeter services
- prefix toolchain: relibc headers synced, _RELIBC_STDLIB_H guard unified

Unfixable (diagnosed, upstream):
- i2c-hidd: abort on no-I2C-hardware (QEMU) — process::exit → relibc abort
- kded6/greeter-ui: page fault 0x8 — Qt library null deref
- Thread panics fd != -1 — Rust std library on Redox
- DHCP timeout / eth0 MAC — QEMU user-mode networking
- hwrngd/thermald — no hardware RNG/thermal in VM
- live preload allocation — BIOS memory fragmentation, continues on demand
2026-05-05 20:20:37 +01:00

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Groff

.TH libinput-measure-touchpad-pressure "1"
.SH NAME
libinput\-measure\-touchpad\-pressure \- measure pressure properties of devices
.SH SYNOPSIS
.B libinput measure touchpad\-pressure [\-\-help] [options]
[\fI/dev/input/event0\fI]
.SH DESCRIPTION
.PP
The
.B "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.
.PP
For a full description on how libinput's pressure-to-click behavior works, see
the online documentation here:
.I https://wayland.freedesktop.org/libinput/doc/latest/touchpad-pressure.html
and
.I https://wayland.freedesktop.org/libinput/doc/latest/palm-detection.html
.PP
This is a debugging tool only, its output may change at any time. Do not
rely on the output.
.PP
This tool usually needs to be run as root to have access to the
/dev/input/eventX nodes.
.SH 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.
.TP 8
.B \-\-help
Print help
.TP 8
.B \-\-touch\-thresholds=\fI"down:up"\fR
Set the logical touch pressure thresholds to
.I down
and
.I up,
respectively. When a touch exceeds the pressure in
.I down
it is considered logically down. If a touch is logically down and goes below
the pressure in
.I up,
it is considered logically up. The thresholds have to be in
device-specific pressure values and it is required that
.I down
>=
.I up.
.TP 8
.B \-\-palm\-threshold=\fIN\fR
Assume a palm threshold of
.I N.
The threshold has to be in device-specific pressure values.
.TP 8
.B \-\-thumb\-threshold=\fIN\fR
Assume a thumb threshold of
.I N.
The threshold has to be in device-specific pressure values.
.PP
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.
.SH LIBINPUT
Part of the
.B libinput(1)
suite