09:02:26 897	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
09:39:30 009	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:33:27 535	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
18:20:37 001	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
