11:14:49 220	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:31:02 830	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:34:05 551	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:01:37 462	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:11:04 507	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
