lspci -v on office 10.04 EMC2 system

00:06.0 Parallel controller: Timedia Technology Co Ltd SUN1888 (Dual IEEE1284 parallel port) (rev 01) (prog-if 02)
	Subsystem: Timedia Technology Co Ltd Device 0103
	Flags: stepping, medium devsel, IRQ 17
	I/O ports at 21a8 [size=8]
	I/O ports at 21a0 [size=8]
	Kernel driver in use: parport_pc
	Kernel modules: parport_pc

Had to rmmod all of the parallel port related modules because of loadrt error "busy". Then pluto_servo loadrt'd fine.

kwallace@104:~$ lsmod|grep pluto
pluto_servo            28210  0 
hal_lib                30885  1 pluto_servo
rtapi                  27693  2 pluto_servo,hal_lib
parport                30764  1 pluto_servo
kwallace@104:~$