11:36:19 824	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:36:20 097	<LAYER 2-1-2> ERROR:GetDrive-->CM_Get_Child(instance:72) failed,err=0xd
14:39:34 319	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:05:55 093	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:05:55 748	<LAYER 2-1-2> ERROR:GetProperty-->SetupDiGetDeviceRegistryProperty failed,GetlastError(0xe000020b)
15:05:55 767	<LAYER 2-1-2> ERROR:GetDemoDrive-->Get PDOName failed
15:08:47 086	<LAYER 2-1-2> ERROR:GetDrive-->CM_Get_Child(instance:72) failed,err=0xd
15:10:38 923	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:21:03 254	<LAYER 2-1-2> ERROR:GetDrive-->CM_Get_Child(instance:74) failed,err=0xd
15:52:00 403	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:52:12 609	<LAYER 2-1-2> ERROR:GetDrive-->CM_Get_Child(instance:74) failed,err=0xd
