Unter X ist es problemlos möglich, den Mauscursor von verschiedenen Eingabegeräten steuern zu lassen:

Hierzu in der/etc/X11/xorg.conf:

Section "ServerLayout"
	...
	Screen		"..."
	...
	InputDevice	"Configured Mouse"
	InputDevice	"USB Mouse"
	InputDevice	"Generic Mouse"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"	"/dev/psaux"
	Option		"Protocol"	"auto"
	...
EndSection

Section "InputDevice"
	Identifier	"USB Mouse"
	Driver		"mouse"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"auto"
	...
EndSection

Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/ttyS0"
	Option		"Protocol"		"auto"
	...
EndSection