Index: trunk/psModules/src/camera/pmHDUUtils.h
===================================================================
--- trunk/psModules/src/camera/pmHDUUtils.h	(revision 7492)
+++ trunk/psModules/src/camera/pmHDUUtils.h	(revision 7609)
@@ -10,4 +10,10 @@
                       const pmCell *cell // The cell, or NULL
                      );
+
+// Get the highest HDU in the hierarchy, as supplied
+pmHDU *pmHDUGetHighest(const pmFPA *fpa, // The FPA
+                       const pmChip *chip, // The chip, or NULL
+                       const pmCell *cell // The cell, or NULL
+                      );
 
 // Find the HDU in the FPA hierarchy