09:06:43 027	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:16:46 401	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
19:33:02 467	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
19:54:05 102	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
20:08:14 829	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
