10:43:07 466	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:26:08 364	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:33:17 129	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
13:51:37 124	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:42:55 072	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
