How to use the Esplora as a controller for the Wii (SSBB)

I was just wondering. The Wii has two USB ports in the back, so I wanted to use my Esplora for a controller for play Smash Bros. I am a huge fan, making my own version of Project M, and I have played since the 64 Version. I was just wondering how to step it up a notch. Please help?

Can anyone answer this? I am sure there is a way because there are adapters made for the USB ports on the back of the Wii. I would appreciate if anyone could answer.