LIB$GETDVI

   The Get Device/Volume Information routine provides a simplified
   interface to the $GETDVI system service. It returns information
   about the primary and secondary device characteristics of an I/O
   device. The calling process need not have a channel assigned to
   the device about which it wants information.

   Format

     LIB$GETDVI  item-code [,channel] [,device-name]

                 [,longword-integer-value] [,resultant-string]

                 [,resultant-length] [,pathname]
 

Additional information available:

Returns         Arguments