Well, recently in inspiration of our robotics team at school, I decided to work on wiring my PSX controller to my USB port and I've gotten the success of getting power to the controller and getting the analog light lit up. My question is... has anyone worked with hooking any homebrewed device to the USB? and as far as manipulating and receiving data from the device, how did you do it? any articles.. suggestions or anything relatively on this topic would be great!  :)

Here are some notes/discoveries I've taken.
[quote]
Dale Stevens
These are my logs and journal on my study on the playstation 1 controller to a universal serial bus plugin.
Playstation controller to USB transfer.

PSC Voltage = 3, 5 volts
USB = 5 volts

USB
4-pin connector
-----------------------
Pin 1}Red} Transfer Wire.
Pin 2}White} Negative Wire.
Pin 3}Green} Positive Wire.
Pin 4}Black} Ground.

Playstation Controller
3-Sets of 3-pins
---------------------
9 Wires
---------------------
Pin 1}Brown} Data
Pin 2}Orange} COMMAND
Pin 3}Purple*} N/C
Pin 4}Gray} GND
Pin 5}Red} VCC
Pin 6}Yellow} ATTENTION
Pin 7}Blue*} CLOCK
Pin 8}---} N/C
Pin 9}Light Green} ACKNOWLEDGE
* represents the wires covered in foil
[/quote]

cool.