xinput is a utility to configure and test X input devices, such as mice, keyboards, and touchpads. It is found in the xorg-xinput package.

To list what xinput devices are available, use:

$ xinput list

⎡ Virtual core pointer 	id=2	[master pointer (3)]
⎜ ↳ Virtual core XTEST pointer 	id=4	[slave pointer (2)]
⎜ ↳ DELL0ABC:DE F123:4567 Mouse 	id=9	[slave pointer (2)]
⎜ ↳ DELL0ABC:DE F123:4567 Touchpad 	id=10	[slave pointer (2)]
⎜ ↳ PS/2 Generic Mouse 	id=16	[slave pointer (2)]
⎣ Virtual core keyboard 	id=3	[master keyboard (2)]
 ↳ Virtual core XTEST keyboard 	id=5	[slave keyboard (3)]
 ↳ Video Bus 	id=6	[slave keyboard (3)]
 ↳ Power Button 	id=7	[slave keyboard (3)]
 ...

A device may be identified by its name ("DELL0ABC:DE F123:4567 Touchpad") or ID (10).

When being executed in a startup script, it is recommended that you use the name, as the ID may change following a reboot and lead to inconsistencies.

To list all the properties of a device that can be set, use the following command:

$ xinput list-props device

This may yield results like such:

$ xinput list-props "DELL0ABC:DE F123:4567 Touchpad"

Device 'DELL0ABC:DE F123:4567 Touchpad':
	Device Enabled (179):	1
	Coordinate Transformation Matrix (181):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Tapping Enabled (336):	0
	libinput Tapping Enabled Default (337):	0
	libinput Tapping Drag Enabled (338):	1
	libinput Tapping Drag Enabled Default (339):	1
 ...

Each property can be identified using its name ("libinput Tapping Enabled") or number (336).

As with devices, it is recommended to use the name in startup scripts, as the ID may change, albeit less often.

Properties of devices can be set one or more (up to three) values. The syntax for setting a property to a value is:

$ xinput set-prop device property values

Where values is replaced with the value(s) of the property.

For an instance, to enable tapping with the above output. Either of the following commands could be used:

$ xinput set-prop "DELL0ABC:DE F123:4567 Touchpad" "libinput Tapping Enabled" 1

or

$ xinput set-prop 10 338 1

On success, no output should be produced.

Below are some of the ways xinput can be used.

$ xinput set-button-map mouse-device 1 1 1

The above command will make middle and right mouse button to function like the left button. Putting zeros will disable them.

$ xinput set-button-map mouse-device 1 0 0