Description

   The Media Robot Driver library is a callable interface for
   controlling SCSI-2 medium-changers. The interface consists of
   two include files and an object library which are installed in an
   operating system specific location. The operating system specific
   locations are shown in Library File Locations.

   Table 1-1 Library File Locations

   Windows NT         \Program Files\MRU\mrd.dll
   UNIX               /usr/lib/libmrd.a
   OpenVMS            SYS$LIBRARY:MRD$RTL.EXE

   The <mrd_common.h> include file defines data structures used to
   provide information about the medium-changer and its elements.
   The <mrd_common.h> file also defines a large number of symbolic
   constants for element type codes, offsets within SCSI structures,
   masks for SCSI bit fields, and other useful structures. The <mrd_
   common.h> file also includes prototype definitions of all the
   medium-changer functions provided in the interface.

   The <mrd_message.h> include file defines constants for each error
   code returned by the MRD interface. Function prototypes are also
   included for routines that will return a string corresponding to
   the error code.

   On Digital UNIX, these strings are retrieved from an I18N message
   catalog that is part of the installed software. Code and routines
   are also included for words and element exception messages that
   might be commonly used by a medium-changer application.
 

Additional information available:

Element_Addresses