Searching a solution for another issue on the Steam forums I found this thread:Ī user named Mitchismo posted this solution to their problem (not being able to install some Steam controller drivers): I don't really think it is a viable solution but it might help you figure our how to solve this problem with Mac OS 10.13.4 (at least that's the one I have and the controller doesn't work with usb.).
I have found a not very practical or safe work-around. I have the same issue with my controller.
