Gamecube to Gameboy Link Cable Compatibility

[CrimsonGaia]

Hey, I was just wondering if dolphin supports using a real gameboy advance with link cable as a controller. I'm aware that you can connect a gameboy emulator, and have done so in the past, but I'm just wondering about the actual hardware since its easier to setup. I'm using a mayflash gamecube adaptor to connect it in case thats relevant

[Helios]

It is not possible.

No USB GC adapter exists that implements the serial link that the GBA adapter uses. Making one is very difficult, USB 3.0 would essentially be required, and even then making sure the latency meets the very tight latency requirements of the GBA link is hard. This is why none of them support it.