I saw this video [0] from the creator of this project the other day. Here he shows how to connect a USB joystick with a playstation access controller [1] by mapping from USB to 3.5mm analog output.

I found this because I was looking for something else for the access controller. It's basically the other way around: I want to use the controller on a mac and need to remap it's outputs to something useful. I don't have a playstation and apparently you need one to remap the controller keys once before plugging it in to a PC, otherwise only 3 out of 8 buttons will send something that is recognized as USB HID

[0] https://www.youtube.com/watch?v=MtXdPWN6NBw [1] https://www.playstation.com/en-us/accessories/access-control...