UPDATE
I found an off brand adaptor on ali-express that works just fine. It was about $20. Thanks for everyones help.
ORIGINAL POST
I bought an Xbox One controller to use with my PC. It is a first generation controller that requires the wireless adapter to connect to a PC. This is annoying as it will cost me about the same price as a new controller ($40). This is a multi-tier question, as I am trying to find the best cost-ratio solution. For now I am playing via USB.
Question 1: Is there a Bluetooth hack for the first gen wireless controllers so I do not need to buy the proprietary adapter?
Question 2: Can the proprietary wireless adapter receive input from more than 1 controller? If so, I might as well buy a second first gen that has the adapter included and I'll have a second controller for player 2.
Best Answer
The first-gen Xbox One controllers are not Bluetooth-capable at all. It's fairly doubtful that there is a "hack" out there to add it in, as it would also entail writing device drivers for the controller or somehow adapting its output to be compatible with existing Bluetooth device drivers.
In any case, if there were a hack, it's pretty likely that the hassle and cost would far surpass that of buying and installing the officially-supported wireless adapter.
As for how many controllers the adapter supports, it depends on what OS you are using and what functionality you are looking for. All cases support at least 2 controllers (Windows 10 PC, with a stereo headset attachment, being the most restrictive). The most it can support is 8 (any Windows version down to 7, no headset attached).
More information on connecting an Xbox One controller to your PC, and the limitations of various configurations, is available on the Xbox website.
http://support.xbox.com/en-US/xbox-on-windows/accessories/connect-xbox-one-controller-to-pc
Also FYI: It seems the Xbox Wireless Adapter for Windows is currently listed at about $25 USD (shipping may be extra).
http://www.xbox.com/en-US/xbox-one/accessories/controllers/windows-wireless-adapter/