11:54:04 892	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:40:31 726	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:41:16 667	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:41:20 152	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:41:21 323	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:41:21 595	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:41:22 443	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
12:41:24 621	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
13:41:39 494	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
