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There is always an option for USB controller, just click the button on the right side of the main menu repeatedly to toggle input mode.

(USB Controller/Keyboard/Touchscreen)

For it to be recognized correctly on Windows you need to set up the endpoints according to this document:

https://drive.google.com/file/d/0BwSDHIR7yDwSOGhPMTFyWEpDVWM/view?usp=sharing

(There is also some general tips in the manual).