https://bugs.winehq.org/show_bug.cgi?id=56990
--- Comment #2 from Austin English austinenglish@gmail.com --- (In reply to Fabian Maurer from comment #1)
I tested WinXP/Win7 and dinput8 doesn't have "GetdfDIJoystick". Where is that exported?
https://github.com/VaanaCZ/LANVP/blob/1263de11b5dd88ffca241d509d6e91ef81b030...
Looks like it comes from native dinput8.