typedef struct _ARBITER_QUERY_CONFLICT_PARAMETERS
{
     PDEVICE_OBJECT PhysicalDeviceObject;
     PIO_RESOURCE_DESCRIPTOR ConflictingResource;
     ULONG * ConflictCount;
     PARBITER_CONFLICT_INFO * Conflicts;
} ARBITER_QUERY_CONFLICT_PARAMETERS, *PARBITER_QUERY_CONFLICT_PARAMETERS;

Windows Vista Kernel Structures