I've been playing with it.
For whatever reason, the controller decides to claim it has no extension attached no matter the position of the physical switch.
It appears it is not a Dolphin issue. Any other wiimote applications I've tried also fail to detect the classic controller.
If I hack the extension as present in Dolphin, the classic controller is detected and fully usable.
I've yet to figure out why it works as expected on a real Wii..
For whatever reason, the controller decides to claim it has no extension attached no matter the position of the physical switch.
It appears it is not a Dolphin issue. Any other wiimote applications I've tried also fail to detect the classic controller.
If I hack the extension as present in Dolphin, the classic controller is detected and fully usable.
I've yet to figure out why it works as expected on a real Wii..