Output of xinput list

Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ Macintosh mouse button emulation        	id=13	[slave  pointer  (2)]
⎜   ↳ HP Optical USB Mobile Mouse             	id=14	[slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad              	id=12	[slave  pointer  (2)]