ndi.setup.vhlab

  ndi.setup.vhlab - initialize an ndi.session.dir with VHLAB devices

   S = ndi.setup.vhlab(REF, DIRNAME)

   Initializes an ndi.session.dir object for the directory
   DIRNAME with the standard compliment of VHLAB devices, as
   found in ndi.setup.daq.system.vhlab.

   If the devices are already added, they are not re-created.