The D-input option is if you want to use your Wii U Pro Controller on a PS3. In order to emulate an Xbox controller, use the X-input. One other feature of the adapter is a switch that changes from D-input to X-input.
I simply took the adapter out of the package, plugged it in to a USB port, then pressed the sync button on the Wii U Pro Controller and the adapter, and that was it! Most any game will now see your Wii U Pro Controller and allow you to play games using it, even with rumble support. So how easy is the Mayflash adapter to setup? Well, as easy as it gets. I tested the adapter with the following PC games: Tomb Raider (worked perfectly), Spec Ops The Line (Left stick was oddly inverted and couldn’t fix), Dishonored (worked perfectly), and Far Cry 4 (worked perfectly). Thankfully the button layout is very similar and buttons are mapped 1-to-1 (X button is the X, A is the A, and so on). There is no ‘native’ support for the Wii U Pro Controller on PC’s so it simply masquerades as an Xbox controller.
SYNC WII U PRO CONTROLLER INSTALL
You basically have to install a new Bluetooth stack (by Toshiba) in order to get it to sync correctly and be recognized as an Xbox controller. If you’ve tried to sync up your Wii U Pro Controller to a PC in the past, I’m sure you’ve found it to be a tedious process. I only own a Wii U so my options are a bit more limited than if gamers had an Xbox controller which already interfaces with PC’s pretty easily. For us Nintendo fans, we may not own a separate Xbox One/360 controller.