| SDL_HID_API_BUS_UNKNOWN | 0x00 | 不明なバス |
| SDL_HID_API_BUS_USB | 0x01 | USBバス 仕様:https://usb.org/hid |
| SDL_HID_API_BUS_BLUETOOTH | 0x02 | BluetoothまたはBluetooth LE 仕様: https://www.bluetooth.com/specifications/specs/human-interface-device-profile-1-1-1/ https://www.bluetooth.com/specifications/specs/hid-service-1-0/ https://www.bluetooth.com/specifications/specs/hid-over-gatt-profile-1-0/ |
| SDL_HID_API_BUS_I2C | 0x03 | I2Cバス 仕様:https://docs.microsoft.com/previous-versions/windows/hardware/design/dn642101(v=vs.85) |
| SDL_HID_API_BUS_SPI | 0x04 | SPIバス 仕様:https://www.microsoft.com/download/details.aspx?id=103325 |