11:41:06 780	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:42:58 816	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:46:50 529	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
13:31:06 857	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:27:43 128	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:37:03 607	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:36:30 054	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
