Wine: wine-staging 8.5~bullseye-1
Linux: Debian bullseye
Controller: PS4 DS4 controller (pegagame-P4016 / ipega-P4016) https://www.pegagame.com/products/pg-p4016
Test Program: C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Samples\C++\DirectInput\Joystick (https://www.microsoft.com/ja-JP/downloa ... px?id=6812)
Test Program2: jstest-gtk 0.1.1~git20160825-4
Screenshots (Joystick.exe on Win8.1) Rz is enabled:

Screenshots2 (Joystick.exe on Wine8.5[Debian] with default reg) Rz is disabled. Rz is grayed out.:

Screenshots3 (Joystick.exe on Wine8.5[Debian] with Axe reg) Rz is disabled. Rz is grayed out.:

Screenshots4 (jstest-gtk on Debian bullseye) Rz is enabled:

log(WINEDEBUG=+dinput wine Joystick.exe): https://pastebin.com/cY48jchr
note: I ran Joystick.exe after restarting regedit to make the changes to the registry take effect.
Axis 0: Left and right of left stick
Axis 1: Left stick up/down
Axis 2: Left and right of right stick
Axis 3: L2
Axis 4: R2
Axis 5: Right stick up/down
Axis 6: Left and right of PAD
Axis 7: PAD up/down
How can I enable axis 5?