11:10:33 489	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:41:47 793	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:30:29 830	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:31:03 971	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:43:23 548	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
