09:02:24 853	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:28:34 753	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:22:35 618	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:26:47 054	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:20:24 809	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
