- A couple of small fixes for memory and initialization problems.

This is to make valgrind happy


SKIPPED:
	psi/amorscan.c
	psi/el734hp.c
	psi/psi.c
	psi/tasscan.c

interface.w

@@ -129,6 +129,8 @@ environment controllers fit this bill as well.
                    } IDrivable, *pIDrivable;
 
         pIDrivable  GetDrivableInterface(void *pObject);                 
+	int GetDrivablePosition(void *pObject, SConnection *pCon,
+				 float *fPos);
 
 @}
 The first member of this structure is an ID which can be used in order to
@@ -170,6 +172,10 @@ the existence of a drivable interface. If it exists a pointer to it will be
 returned. NEVER free this pointer. If no drivable interface exists, NULL
 will be returned.
 
+{\bf GetDrivablePosition retrieves the position of the drivabel
+object. If the device is a motor corrections for zero points and signs
+will be applied. Returns 1 on success and 0 on failure}
+
 \subsubsection{The Countable Interface}
 This is an interface for interacting with anything which counts.