17:42:47 174	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
20:31:39 891	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
20:34:04 601	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
20:40:13 013	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
20:40:15 076	Error:EnumerateHub-->CreateFile failed,err=0x2
20:40:16 539	Error:EnumerateHub-->CreateFile failed,err=0x2
20:40:19 966	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
