Sidewinder on PSX?
 

I can't seem to find my PSX controller and don't want to buy a new one just to play my final fantasy games (though I will if I have to). I was just wondering if there's any way I can use my Sidewinder joypad on the PSX - any sort of USB -> PSX convertor. I found many for going the other way - using PSX controllers on the PC, but nothing to use a USB controller on the PSX.