Things You'll Need
Instructions
Plug the USB cable into the USB port on the top of the Sony PS3 controller.
Insert the other end of the USB cable into the USB port on the PS2 to USB adapter.
Plug the serial end of the adapter into one of the controller connection ports on the PS2.
Power on the Sony PS2, and press the PlayStation button in the middle of the PS3 controller. Momentarily the controller powers on, allowing you to use it and the built-in vibration features on the older PlayStation 2 system.