To stop the program just kill it in any way you want. Seperate virtual controllers are created for each one plugged into the adapter and hotplugging (both controllers and adapters) is supported.

With the release of Smash Ultimate fast approaching for the Nintendo Switch ... to USB adapter. Made out of dual official Nintendo GameCube to USB adapters (intended for the Wii U) merged ...

gcadapter_evdev will create up to four evdev devices dynamically, allowing usage in applications that do not explicitly support the Wii U GameCube Adapter. You will need to have set the permission of ...

Nintendo has never utilized a "2" in any of its hardware launches, making the successor to the Switch a first of its kind.