As you know, we are working hard on XIM4 and the open XIM4 beta for Edge users. We are still early on getting PS4 to work, however, we've discovered something that we wanted to get the community involved in early.
As far as we can tell so far, there is no wired mode for PS4 Dualshock 4 controllers.
Did you know that you could connect your DS4 wirelessly to your PS4 and then plug it wired to a PC (where it'll show up as a joystick) at the same time? Then, if you press buttons or move the sticks, it'll show up on *both* your PS4 and PC! PS4 appears to be always use BT communication over wired.
Obviously, we need wired mode. If anyone comes across any information online about this, please let us know.