10:52:06 358	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:49:11 060	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:50:23 983	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:19:05 745	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:19:19 060	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
