A simple adapter which unfortunately the four main action buttons reproduces only in digital 1 or 0-form on a PC. Ansich not a problem, unless you want to play Metal Gear Solid 2, which requires these keys. It will also work no tricks or other drivers. Do I need to probably look further ...
For little money a simple and well-functioning 1-Port PS2 / PS3 to USB adapter? Yes, he is here.