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From the Figure 11-10. Downstream Facing Hub Port State Machine the device connect status should be disabled and the PLS should be polling for USB2.0, when the device be connected, then the xHCD send the port reset, for acrn we use libusb_reset_device to emulate the bus reset action. Tracked-On: #5795 Signed-off-by: Liu Long <long.liu@intel.com> Acked-by: Wang, Yu1 <yu1.wang@intel.com>