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USB GIP devices MUST respond to a request for the device_qualifier descriptor with a request error (STALL) to indicate that this is a Full-Speed (12 Mbps) device and not a High-Speed (480 Mbps) device as per USB 2.0 specification .6.1 Device. To ignore this request has side effects with the "This device can perform faster" pop-up message. See [MSLEARN-XIGC-API] gipdocs download for wire trace figure 3-18.