14:15:28 766	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:42:09 998	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:43:55 228	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:49:27 595	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:15:22 928	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:17:40 629	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
