TTYDEFS(5) File Formats and Configurations TTYDEFS(5)

NAME

ttydefs - file contains terminal line settings information for ttymon

DESCRIPTION

/etc/ttydefs is an administrative file that contains records divided
into fields by colons (":"). This information used by ttymon to set
up the speed and terminal settings for a TTY port.


The ttydefs file contains the following fields:

ttylabel
The string ttymon tries to match against the TTY
port's ttylabel field in the port monitor
administrative file. It often describes the speed at
which the terminal is supposed to run, for example,
1200.


initial-flags
Contains the initial termio(4I) settings to which
the terminal is to be set. For example, the system
administrator will be able to specify what the
default erase and kill characters will be. initial-
flags must be specified in the syntax recognized by
the stty command.


final-flags
final-flags must be specified in the same format as
initial-flags. ttymon sets these final settings
after a connection request has been made and
immediately prior to invoking a port's service.


autobaud
If the autobaud field contains the character 'A,'
autobaud will be enabled. Otherwise, autobaud will
be disabled. ttymon determines what line speed to
set the TTY port to by analyzing the carriage
returns entered. If autobaud has been disabled, the
hunt sequence is used for baud rate determination.


nextlabel
If the user indicates that the current terminal
setting is not appropriate by sending a BREAK,
ttymon searchs for a ttydefs entry whose ttylabel
field matches the nextlabel field. If a match is
found, ttymon uses that field as its ttylabel field.
A series of speeds is often linked together in this
way into a closed set called a hunt sequence. For
example, 4800 may be linked to 1200, which in turn
is linked to 2400, which is finally linked to 4800.

SEE ALSO

termio(4I), sttydefs(8), ttymon(8)


System Administration Guide: Basic Administration

January 27, 1994 TTYDEFS(5)