USB Passthrough

Since, Dolphin has the ability to passthrough USB HID devices designed for use with Wii software. This gives emulated Wii software full control of a hardware device connected to your PC. This is very useful for devices not currently emulated by Dolphin and games that highly depend on extra hardware.

List of Devices and IDs
Dolphin is currently unable to use any USB device which is not a HID (Human Interface Device).

Linux
Linux support does not require any special drivers. However, a udev rule must be created to allow access to the devices. Note, the Vender ID and Product ID SHOULD be verified from the device itself before creating the rule.

1. Paste the following into /etc/udev/rules.d/52-dolphin.rules (/lib/udev/rules.d/52-dolphin.rules if making a package):

2. Replace the XXXX with the appropriate Vendor and Product IDs.

3. Reload udev rules with:

4. Now, reinsert the accessory. When the game is booted it should be able to access the accessory as if it were plugged into a Wii.

To change the rule, links for instructions are available on the libusb FAQ.

Windows
Download and open Zadig, then:

1. In the "Options" menu in Zadig, make sure "List All Devices" is enabled.

2. Look through the devices for the device to passthrough.

3. On the right column, select "libusbk" then click "Replace Driver". Select "Yes" to modify the system driver.

The game will then be able to detect the device on next boot.

macOS
While this can be done in macOS, there is currently no easy to use guide for it. A modified variant of the Native GameCube Adapter for Wii U guide should work, but what needs to be changed is not immediately apparent.

Android
This feature is not supported on Android.