Emulator Issues #11260
Found fix for Wii U Gamecube Adapter on MacOS
With how the current MacOS handles unsigned kext files, disabling the SIP protocol has been necessary to use the adapter. However, there is a command that enables the loading of unsigned kext files. "sudo nvram kext-dev-mode=1" followed by a reboot allows the kext to load without the need to disable SIP. So far I have had no problems and the adapter is being detected successfully.
#2 Updated by SoaringHawk820 almost 2 years ago
I wasn't sure exactly where to post this, but I think the main thing to do would be to edit the Dolphin Wiki Page https://wiki.dolphin-emu.org/index.php?title=How_to_use_the_Official_GameCube_Controller_Adapter_for_Wii_U_in_Dolphin letting people know about this workaround.