libinput-debug-events (1) Linux Manual Page

NAME

libinput-debug-events – debug helper for libinput

SYNOPSIS

libinput debug-events [options]

libinput debug-events [options] –udev <seat>

libinput debug-events [options] [–device] /dev/input/event0 [/dev/input/event1…]

DESCRIPTION

The libinput debug-events tool creates a libinput context and prints all events from these devices.

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

–device /dev/input/event0

Use the given device(s) with the path backend. The –device argument may be omitted.

–grab

Exclusively grab all opened devices. This will prevent events from being delivered to the host system.

–help

Print help

–quiet

Only print libinput messages, don’t print anything from this tool. This is useful in combination with –verbose for internal state debugging.

–show-keycodes

Key events shown by this tool are partially obfuscated to avoid passwords and other sensitive information showing up in the output. Use the –show-keycodes argument to make all keycodes visible.

–udev <seat>

Use the udev backend to listen for device notifications on the given seat. The default behavior is equivalent to –udev "seat0".

–verbose

Use verbose output

libinput configuration options

–apply-to=pattern

Configuration options are only applied where the device name matches the pattern. This pattern has no effect on the –disable-sendevents option.

–disable-sendevents=pattern

Set the send-events option to disabled for the devices matching patterns. This option is not affected by the –apply-to="pattern" option.

–enable-tap|–disable-tap

Enable or disable tap-to-click

–enable-drag|–disable-drag

Enable or disable tap-and-drag

–enable-drag-lock|–disable-drag-lock

Enable or disable drag-lock

–enable-natural-scrolling|–disable-natural-scrolling

Enable or disable natural scrolling

–enable-left-handed|–disable-left-handed

Enable or disable left handed button configuration

–enable-middlebutton|–disable-middlebutton

Enable or disable middle button emulation

–enable-dwt|–disable-dwt

Enable or disable disable-while-typing

–enable-scroll-button-lock|–disable-scroll-button-lock

Enable or disable the scroll button lock

–set-click-method=[none|clickfinger|buttonareas]

Set the desired click method

–set-scroll-method=[none|twofinger|edge|button]

Set the desired scroll method

–set-scroll-button=BTN_MIDDLE

Set the button to the given button code

–set-profile=[adaptive|flat]

Set pointer acceleration profile

–set-speed=<value>

Set pointer acceleration speed. The allowed range is [-1, 1].

–set-tap-map=[lrm|lmr]

Set button mapping for tapping

NOTES

Events shown by this tool may not correspond to the events seen by a different user of libinput. This tool initializes a separate context.

LIBINPUT

Part of the libinput(1) suite

Index