master(4)                                               master(4)



     NAME
          master - master device information table

     DESCRIPTION
          This file is used by the config(1M) program to obtain device
          information that enables it to generate the configuration
          files.  The file consists of 3 parts, each separated by a
          line with a dollar sign ($) in column 1.  Part 1 contains
          device information; part 2 contains names of devices that
          have aliases; part 3 contains tunable parameter information.
          Any line with an asterisk (*) in column 1 is treated as a
          comment.

          Part 1 contains lines consisting of at least 7 fields and at
          most 10 fields, with the fields delimited by tabs and/or
          blanks:

          Field 1:       device name (8 chars. maximum).
          Field 2:       handlers (9 character string)
                         's',   INIT,       xxxxinit()
                         'o',   OPEN,       xxxxopen()
                         'c',   CLOSE,      xxxxclose()
                         'r',   READ,       xxxxread()
                         'w',   WRITE,      xxxxwrite()
                         'i',   IOCTL,      xxxxioctl()
                         't',   SELECT,     xxxxselect()
                         '-',   No handlers
          Field 3:       device type indicator (9 character string):
                         'm',   SEMAS,      define semaphores
                         't',   TTYS,       a tty device
                         'o',   ONCE,       can only be specified once
                         's',   NOCNT,      suppress count & other stuff
                         'r',   REQ,        required device
                         'b',   BLOCK,      a block device
                         'c',   CHAR,       a character device
                         'k',   CLOCK,      the clock device
                         'p',   PECULIAR,   peculiar (use devname, not prefix)
                         'f',   FORCE,      Define count if not a tty
                         '-',   No type indicators
          Field 4:       handler prefix (4 chars. maximum).
          Field 5:       major device number for block-type device
                         (short decimal).
          Field 6:       major device number for character-type device
                         (short decimal).
          Field 7:       maximum number of devices/lines (short
                         decimal).
          Fields 8-10:   optional structure declarations (40 chars.
                         maximum).

          Part 2 contains lines with 2 fields each:

               Field 1:       alias name of device (20 chars.



     Page 1                                        (last mod. 1/14/87)

     master(4)                                               master(4)



                              maximum).
               Field 2:       reference name of device (20 chars.
                              maximum; specified in part 1).

          Part 3 contains lines with 2 or 3 fields each:

               Field 1:       parameter name (as it appears in
                              description file; 20 chars. maximum)
               Field 2:       text form (as it appears in the conf.c
                              file; 20 chars. maximum)
               Field 3:       default parameter value (20 chars.
                              maximum; specification in description
                              file is required if this field is
                              omitted)

     FILES
          /etc/master

     SEE ALSO
          config(1M).



































     Page 2                                        (last mod. 1/14/87)