15:02:05 413	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:20:21 570	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:24:20 451	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:24:20 696	<LAYER 2-1-2> ERROR:GetProperty-->SetupDiGetDeviceRegistryProperty failed,GetlastError(0xe000020b)
15:24:20 712	<LAYER 2-1-2> ERROR:GetDemoDrive-->Get PDOName failed
15:33:50 362	<LAYER 2-1-2> ERROR:GetDrive-->CM_Get_Child(instance:70) failed,err=0xd
15:37:53 947	<LAYER 2-1-2> ERROR:GetProperty-->SetupDiGetDeviceRegistryProperty failed,GetlastError(0xe000020b)
15:37:53 947	<LAYER 2-1-2> ERROR:GetDemoDrive-->Get PDOName failed
