Works for me on a PAL WII U, but only USA version of Wind Waker. PAL versión = Black Screen.
I use Cleanrip to get de .iso and then DiscEX for convert to a valid format for Nintendont.
My HID is TRIO LINKER V1 (PS2, GC and Dreamcast to USB) with an original GC pad.
My controller.ini works...