12-04-2012
You should have it print the name of the port, too. Perhaps something strange has ended up in the port list somehow, like a foreign TTY.
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LEARN ABOUT SUNOS
ttydefs
ttydefs(4) File Formats ttydefs(4)
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(7I) 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 recog-
nized 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
sttydefs(1M), ttymon(1M), termio(7I)
System Administration Guide: Basic Administration
SunOS 5.10 27 Jan 1994 ttydefs(4)