lta(4)
NAME
lta − lta pseudoterminal interface
SYNTAX
options LAT
pseudo-device lat
pseudo-device lta[n]
DESCRIPTION
The lta pseudoterminal driver provides support for local area transport (LAT) service. LAT service allows users to access remote nodes through the Ethernet.
Installing LAT
To properly configure LAT service into your system, do the following:
Edit the configuration file to include options LAT, pseudo-device lat, and pseudo-device lta. The configuration file is in /sys/conf/MACHINE, where MACHINE is the name you have given your machine.
If no optional n value is given defining the number of LAT lines to configure, a default of 16 lines is assumed.
To use remote node maintenance functions to load and control diskless servers such as the DECserver 100, edit the configuration file to include options DLI, and pseudo-device dli.
To restart LAT service automatically when the system reboots, add the following to the /etc/rc.local file after the local daemons startup section.
if [ -f /etc/lcp ]; then
/etc/lcp -s > /dev/console 2>&1 & echo -n ’ lat’ >/dev/console
fi
Create the LAT special files with the following commands:
cd /dev
MAKEDEV lta0
The MAKEDEV command will create 16 LAT special files. The maximum number of LAT special files is 256. You can create more special files in groups of 16 by specifying a digit in the range 1 to 7. This will create groups of 16 special files. For example, the command
MAKEDEV lta1
will create 16 additional tty?? special files.
Edit the /etc/ttys file to include entries for all files created by the MAKEDEV command. For more information on how to add these entries, see ttys(.).
FILES
/dev/tty??
/dev/ttyd?(modem lines only)