11:39:46 344	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:31:48 646	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:04:13 103	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
16:08:02 760	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:13:43 996	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
18:57:02 584	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
20:03:20 886	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
