Device control system, host device, and control method of a host device

摘要

Devices can be controlled by group even when multiple devices compatible with different interface standards are connected. An iProduct identifier enabling recognition by the host 3 side as interfaces in the same group is set in the USB 2.0 hub 11X and USB 3.0 hub 11Y in the same publisher 2. The host 3 side determines if the hubs belong to the same group based on the iProduct identifier, and coordinates operation of the USB devices 13 to 15 connected to the USB 2.0 hub 11X and USB 3.0 hub 11Y determined to be in the same group.