I've spent a few days trying to get a connection between the Wii and a Dualshock 4. In order to get it working, I had to do some "reverse engineering" to the libogc's Bluetooth stack and I finally found what was happening: the Bluetooth protocol authentication part of the libogc's bluetooth stack was missing. I've already submitted a patch to the official libogc repository. Well, after getting the "authentication" working, I started implementing the specific DS4 bluetooth protocol (thanks to here and here). The Dualshock4 need to be paired through USB before establishing a Bluetooth connecti