Has anyone built USB adapters for Gamepads /Memory cards?

[ihaveanosebleed]

I bought a JoyBox adapter because I wanted to play a PS2 controller on my Xbox. I thought I could get it to double as a USB adapter by adding a USB cable to the appropriate USB wires inside the Joybox.

When I connected it to my computer, it found new hardware. I needed to run USBView to get the VID & PID numbers to modify the driver install. After install it shows OK in Gaming options but when you hit properties it says not connected properly.

Is it that Joybox is just not compatable with xbox gamepad drivers?

Also for reading Memory cards people go through a process of modifying Action Replay link software or something with limited results. If the Xbox Gamepads are USB Hubs, then Xbox memory cards are USB flash drives. What would happen if I made an adapter to connect a Memory card directly to a USB port, would it detect a flash drive?