09:01:13 968	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
10:59:01 210	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
13:34:31 570	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:25:59 724	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:48:53 836	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
