http://bugs.winehq.org/show_bug.cgi?id=18424
--- Comment #77 from david.dljunk@gmail.com 2013-02-09 05:06:21 CST --- So I think I've reached the limit of my usefulness for now. The commands to find and access joysticks in OS X through IOKit seem completely arcane to me. I've attempted to study not only the OS X dinput joystick implementation, but also Apple's developer pages describing IOKit and the HID library and there seems to be a lot of ancillary material I would also have to become comfortable with in order to program a winmm joystick interface myself. Hopefully what I've written above in Comment 75 will be useful as a guide to what needs to be done, but the actual writing of the winmm driver code is at the moment too far outside the scope of my skill set.
If anybody reading this bug report has the necessary knowledge and would like to contribute their time to writing code, I would be very much obliged and happy to help test it.
Thanks for reading!