13:33:02 325	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:14:02 466	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:25:05 409	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:25:16 024	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:37:57 802	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
