Did everything, no results so far.

[Kaspar-V]

I enabled the root user, logged in as the root user and used the "sudo " command and dragged the install.sh file in. In my Applications folder there is a wiiu-gc-adapter folder, my Mayflash is set to the WiiU switch, I honestly can't think of anything I have done incorrectly. It still doesn't work. Could I have missed something?

[racemus]

Hi.

To run as root you just need to use sudo. It worked for me just with instructions in readme with one exception. The only problem was to find bin file. I find it in ~/Library/Developer/Xcode/DerivedData/wiiu-gcc-adapter-bin-ddteupzrjcrqyofgrsnqesqenqib/Build/Products/Debug

[apepindev]

@Kaspar-V what OS version are you using? I'm on El Capitan v10.11.3 and I couldn't get this to work. Most likely because kext-dev-mode in install.sh is now obsolete in El Capitan.

[HarlemMeer]

I am using OS X El Capitan 10.11.3. I have done everything the OP did and have same results. Only difference is that I couldn't figure out how to get sudo command to work so I created a root user and ran the instal.sh as root. This created the wiiu-gc-adapter folder in my Applications but when I went to use the Mayflash 4 port on WiiU setting and set Dolphin to the WiiU adapter nothing worked.

Just as a possibly funny aside, I emailed Mayflash to ask them about El Capitan and their response was, "We didn't test El Capitan, use Windows." I could almost hear them laughing at me.

[racemus]

It wants libusb-1.0.0.dylib in /usr/local/lib to work.