DITTY(1)

NAME
       ditty  - utility program that sets and displays the termi-
       nal options for Digi intelligent serial products.

SYNOPSIS
       ditty [-a][-p][-n ttyname][option(s)][ttyname]

DESCRIPTION
       Ditty with no options, displays all  Digi  special  driver
       settings,  modem signals, and all standard parameters dis-
       played by stty(1) for the tty device referenced  by  stan-
       dard input.

       Command  options  are provided to change flow control set-
       tings, force modem control lines, and display all tty set-
       tings.  Any unrecognized options are passed to stty(1) for
       interpretation.

       The options are:

       -a           Display all of the unique  Digi  option  set-
                    tings,  as  well  as  all of the standard tty
                    settings reported by stty -a.

       -p           Interpret the  port  as  a  parallel  printer
                    port.   This flag should only be used for the
                    ninth port of a PORTS 8emp module.

       -n           ttyname Set and display options for the given
                    tty  device, instead of standard input.  This
                    option may be used on a  modem  control  line
                    when no carrier is present.

       The following options specify transient actions to be per-
       formed immediately.

       break        Send a 250 MS break signal  out  on  the  tty
                    line.

       flush        Immediately  flush  (discard)  tty  input and
                    output.

       flushin      Flush tty input only.

       flushout     Flush tty output only.

       The  following  options  specify  actions  which  are  not
       "sticky,"  meaning  that  the  changes  are reset when the
       device is closed, and that the device will use the default
       values the next time it is opened.

       stopout      Stop  output  exactly as if an XOFF character
                    was received.

       startout     Restart stopped output exactly as if  an  XON
                    character was received.

       stopin       Activate flow control to stop input.

       startin      Release flow control to resume stopped input.

       [-]dtr       Raise [drop]  the  DTR  modem  control  line,
                    unless RTS hardware flow control is selected.

       [-]rts       Raise [drop]  the  RTS  modem  control  line,
                    unless RTS hardware flow control is selected.

       The following options are "sticky" -- the affects continue
       until  the  system  is  rebooted  or until the options are
       changed.

       [-]fastbaud  Alter the baud rate tables  ,  such  that  50
                    baud  becomes  57,600  baud,  75 baud becomes
                    76,800 baud  and  110  baud  becomes  115,200
                    baud.

       [-]rtspace   Enable [disable] RTS hardware input flow con-
                    trol, so RTS drops to pause remote  transmis-
                    sion.

       [-]ctspace   Enable  [disable]  CTS  hardware  output flow
                    control, so local  transmission  pauses  when
                    CTS drops.

       [-]dsrpace   Enable  [disable]  DSR  hardware  output flow
                    control, so local  transmission  pauses  when
                    DSR drops.

       [-]dcdpace   Enable  [disable]  DCD  hardware  output flow
                    control, so local  transmission  pauses  when
                    DCD drops.

       [-]dtrpace   Enable [disable] DTR hardware input flow con-
                    trol, so DTR drops to pause remote  transmis-
                    sion.

       [-]forcedcd  Disable [re-enable] carrier sense, so the tty
                    may be opened and used even when  carrier  is
                    not present.

       [-]altpin    Switches  the function of the DSR and the DCD
                    inputs on the interface  connector,  so  that
                    DCD  is  available  when using an 8-pin RJ-45
                    connector instead of a 10-pin  RJ-45  connec-
                    tor.

       startc c     Sets  the  XON  flow  control character.  The
                    character may be given as a  decimal,  octal,
                    or  hexadecimal  number.   Octal  numbers are
                    recognized by the presence of a leading zero,
                    and  hexadecimal  numbers  are  denoted  by a
                    leading "0x".  For example, the standard  XON
                    character  <CTRL-Q>,  can  be entered as "17"
                    (decimal), "021" (octal), or "0x11" hexadeci-
                    mal.

       stopc c      Sets  the  XOFF  flow control character.  The
                    character may be given as a  decimal,  octal,
                    or hexadecimal number (See startc, above, for
                    format of octal and hexadecimal numbers).

       astartc c    Sets the auxiliary XON flow  control  charac-
                    ter.   The  character may be given as a deci-
                    mal,  octal,  or  hexadecimal   number   (See
                    startc,  above,  for format of octal and hex-
                    adecimal numbers).

       astopc c     Sets the auxiliary XOFF flow control  charac-
                    ter.   The  character may be given as a deci-
                    mal,  octal,  or  hexadecimal   number   (See
                    startc,  above,  for format of octal and hex-
                    adecimal numbers).

       [-]aixon     Enables auxiliary flow control, so  that  two
                    unique  characters are used for XON and XOFF.
                    If both XOFF characters are received,  trans-
                    mission  will not resume until both XON char-
                    acters are received.

SEE ALSO
       stty(1) ioctl(2) termio(4) and terminfo(5). 

BUGS
       None that we are aware of.