11:05:54 520	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:21:35 164	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:27:52 405	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:20:18 064	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:59:08 628	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:59:38 636	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
