[Wii U] Official Gamecube Controller to Wii U HID adapter: Z Button non-functional.

[StrikerMan780]

Description

In RetroArch for Wii U, if using the official Gamecube adapter for the Wii U, the Z button on the controllers do not work, and you cannot bind them in the config menu, it doesn't respond to presses of the Z button.

Expected behavior

To be able to bind actions to the Z button and actually have it function.

Actual behavior

Like in the description, the Z button isn't being recognized whatsoever. Tried with new and old Gamecube controllers alike, definitely not any fault in the controllers themselves.

Steps to reproduce the bug

1. Connect an official Gamecube to Wii U USB adapter, with one controller attached.
2. Start RetroArch, set max users high enough to be able to pick the controller.
3. Try to bind a button, and when it prompts you to hit the button you want, try hitting Z.
4. It won't respond.

Bisect Results

No idea when this started happening, I just started using RetroArch on Wii U yesterday.

Version/Commit

You can find this information under Information/System Information

• RetroArch: Whichever this is based on: https://buildbot.libretro.com/nightly/nintendo/wiiu/2017-07-13_RetroArch_rpx.7z

Looking at the date, probably this commit: https://github.com/libretro/RetroArch/commit/c800477bc8ce348dd6b2cf3409c29105538ef563

Environment information

• OS: Wii U
• Compiler: N/A.

[RobLoach]

What input driver are you using? You can find that in the advanced setting under Drivers.

[orbea]

@StrikerMan780 Is this still an issue with the nightlies?