I own the Microsoft PC version of the XBox controller so my workaround is 3 controllers and adapters. But why do that? The Sony PS3 is BLUETOOTH and should be able to do that.
https://github.com/RetroPie/RetroPie-Setup/wiki/PS3-Controller
Hi all. I use a retropie set up to play old games and have a wireless controller that I got from new egg... what I would like to do is be able to set up another wireless receiver for the controller so, since I have 3 separate retropie set ups, I would be able to put a usb receiver in each so all I have to do is bring the controller to which ever retropie I am using at the time. The Controller reads as an Xbox controller it would seem... Any ideas on how to either program the receivers... or pair the controller to more than one receiver? thanks.

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