* @param busNum
* @return virtual device spec of the controller
*/
public static VirtualDeviceSpec createControllerDevice(
ScsiControllerType type, int busNum) {
VirtualSCSIController controller = type.createController();
controller.setBusNumber(busNum);
controller.setHotAddRemove(true);
controller.setKey(-1);
controller.setSharedBus(Sharing.noSharing);
return addDeviceSpec(controller);
}