OpenCV and USB Camera with Intel Edison

Hello,

I have the Arduino Intel Edison board, and I was wondering how a USB Camera was suppose to be connected? It doesn't  power up when plugged into the USB port. In addition, how are the drivers obtained? Lastly, it seems that the openCV python that can be installed to Edison is minimal; it doesn't recognize commands such as cv.waitKey(30). Why is that and how can it be fixed?

Thank you