Yes sir, But, nodes are already NULL in given topology. Is below function you were suggesting me delete?Otherwise, can you paste here the function name, which needs to be deleted
//=============================================================================
static
PCFILTER_DESCRIPTOR SpeakerTopoMiniportFilterDescriptor =
{
0, // Version
&AutomationSpeakerTopoFilter, // AutomationTable
sizeof(PCPIN_DESCRIPTOR), // PinSize
SIZEOF_ARRAY(SpeakerTopoMiniportPins), // PinCount
SpeakerTopoMiniportPins, // Pins
sizeof(PCNODE_DESCRIPTOR), // NodeSize
0, // NodeCount
NULL, // Nodes
SIZEOF_ARRAY(SpeakerTopoMiniportConnections), // ConnectionCount
SpeakerTopoMiniportConnections, // Connections
0, // CategoryCount
NULL // Categories
};