Files
RedBear-OS/local/recipes/libs/libevdev/source/tools/libevdev-tweak-device.1
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

70 lines
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Groff

.TH LIBEVDEV-TWEAK-DEVICE "1"
.SH NAME
libevdev-tweak-device \- modify an evdev kernel device
.SH SYNOPSIS
.B libevdev-tweak-device
--abs ABS_X [--min a] [--max b] [--res c] [--fuzz d] [--flat e]
/dev/input/eventX
.B libevdev-tweak-device
--resolution res[,yres] /dev/input/eventX
.PP
.B libevdev-tweak-device
--led LED_NUML --on|--off /dev/input/eventX
.SH DESCRIPTION
.PP
The
.I libevdev-tweak-device
tool changes the properties of the evdev kernel device at
.I /dev/input/eventX.
Currently this may be used to force an LED on or off, or to change the
properties of an absolute axis (e.g. its minimum/maximum range or
resolution). Changes are permanent until the device is removed.
.SH OPTIONS
.SS Changing absolute axes
.TP 8
.B --abs axis
Change the given named ABS_ kernel axis, e.g. ABS_X. For a full list, see linux/input.h.
Each of the options
.B min, max, res, fuzz, flat
may be given.
.TP 8
.B --min v
Set the absinfo minimum to the value v
.TP 8
.B --max v
Set the absinfo maximum to the value v
.TP 8
.B --res v
Set the absinfo resolution to the value v
.TP 8
.B --fuzz v
Set the absinfo fuzz to the value v
.TP 8
.B --flat v
Set the absinfo flat to the value v
.PP
.SS Changing the x/y resolution
.TP 8
.B --resolution res[,yres]
Changes the resolution of the ABS_X, ABS_MT_POSITION_X, ABS_Y, and
ABS_MT_POSITION_Y axis to the given resolution. If only one resolution value
is provided, both x and y axis are set to the same resolution, otherwise the
first resolution value is applied to the x axes and the second value to the
y axes.
.SS Toggling LEDs
.TP 8
.B --led led
Change the given LED, e.g. LED_NUML. For a full list, see linux/input.h.
.TP 8
.B --on
Change the LED state to on
.TP 8
.B --off
Change the LED state to off
.SH NOTES
.PP
The kernel does not notify processes about absinfo property changes. Any
process that has previously obtained the absinfo from the device will remain
on the old information. This makes using this tool potentially racy, use
with caution.