devLib, locationProbe routine

[Andrew Johnson <anj@mail.ast.cam.ac.uk>]

Am I right in thinking that the routine  locationProbe  in devlib returns 
SUCCESS to indicate that the given address does *not* respond to VME accesses of 
any size?  I presume the aim here is to indicate that this area of the memory 
map is currently not used.

Should I be using this in my driver to check that a board is present?  The older 
drivers use vxMemProbe, which returns OK if something responds.  It seems wrong 
to expect an error code (S_dev_addressOverlap) as the status return indicating 
success (ie board found), which is what I would have to do if I used the  
locationProbe  routine.

Are there plans to modify the existing drivers to use the devLib facilities?

- Andrew

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