15:46:24 668	<LAYER 2-2> ERROR:GetProperty-->SetupDiGetDeviceRegistryProperty failed,GetlastError(0xe000020b)
15:46:24 808	<LAYER 2-2> ERROR:GetDemoDrive-->Get PDOName failed
15:54:53 276	<LAYER 2-2> ERROR:GetProperty-->SetupDiGetDeviceRegistryProperty failed,GetlastError(0xe000020b)
15:54:53 277	<LAYER 2-2> ERROR:GetDemoDrive-->Get PDOName failed
16:06:00 105	<LAYER 2-2> ERROR:GetDrive-->CM_Get_Child(instance:65) failed,err=0xd
