Sun Microsystems SunSAI/P, Руководство пользователя

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32 SunSAI/P User’s Guide • November 1998
TABLE 7-1
sitty
Options
Option Description
-a
Display all of the unique SunSAI/P option settings, as well as all of
the standard TTY settings reported by
stty -a
.
ttyname Set and display options for the given TTY device, instead of
standard input. ttyname is the full pathname
(e.g.
/dev/term/a000
) of the device.
The following options specify transient actions to be performed 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 are “sticky”, which means that the effects continue until the system is
rebooted or until the options are changed.
[-]fastbaud
Alter the baud rate tables, so that the following baud rate changes
take place: 50=56700, 75=76800, 110=115200 , 200=230000,
300=76800, 600=115200, 1200=230000, and 1800=28800.
For example, 50 baud becomes 57,600 baud, 75 baud becomes 76,800
baud, and so on.
[-]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,
modular connector, so that DCD is available when using an 8-pin
RJ-11 connector instead of the 10-pin RJ-45 connector.
edelay
n Sets the number (n) of milliseconds of delay between the time the
first character arrives after a period of no characters and notification
of its arrival to the host. This delay is also referred to as the wakeup
rate between the host adapter software (FEPOS) and the host device
driver. This has the advantage of reducing host overhead by
allowing the host to process larger blocks of incoming data.
Larger
edelay
values result in more characters being sent in a
given time period. This will reduce host processor overhead and
increase overall system throughput. Smaller edelay values result in
fewer characters being sent in a given time period. This will
increase character response time and increase host processor
overhead.