Linux / Wiimote API: Classic Controller Pro is not detected

[git-developer]

Current Behavior

When a Classic Controller Pro is used as extension on a Wiimote, it is not detected ("Connected extension: None").

Additional Info:

• An original Classic Controller is detected
• In xwiishow and evtest, the Classic Controller Pro is detected and working correctly.
• The uevent data is identical for Classic Controller and Classic Controller Pro, and a comment in the linux driver states:

  The Classic Controller Pro is also reported via this interface, but cannot be distinguished from a normal classic controller extension.

Expected Behavior

The Classic Controller Pro should be detected just as an original Classic Controller.

Steps to Reproduce

1. Connect a Wiimote
2. Connect a Classic Controller Pro extension
3. Start Cemu and go to Input settings, enter Settings and look at the label that shows the extension

System Info (Optional)

Cemu 2.0-94 AppImage build on Linux (batocera v40)

Emulation Settings (Optional)

No response

Logs (Optional)

No response

[git-developer]

Detected in https://github.com/batocera-linux/batocera.linux/pull/12291

[kevincrans]

Possible duplicate of my 2022 question #200