.\" Copyright (c) 1986 Regents of the University of California.
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\" @(#)L-devices.5 6.1 (Berkeley) 4/24/86
.TH L-DEVICES 5 "April 24, 1986"
L-devices \- UUCP device description file
The L-devices file is consulted by the UUCP daemon
for information on the devices that it may use.
Each line describes exactly one device.
Caller Device Call_Unit Class Dialer [Expect Send]....
Each item can be separated by any number of blanks or tabs. Lines beginning
with a `#' character are comments; long lines can be continued by appending
a `\e' character to the end of the line.
denotes the type of connection, and must be one of the following:
Automatic call unit, e.g., autodialing modems such as the Hayes
Smartmodem 1200 or Novation ``Smart Cat''.
Direct connect; hardwired line (usually RS-232) to a remote system.
Sytek high-speed dedicated modem port connection.
Berkeley TCP/IP or 3Com UNET connection. These are mutually exclusive.
Note that listing TCP connections in
does not even bother to look here since it has all the information it
is a device file in /dev/ that is opened to use the device. The device
file must be owned by UUCP, with access modes of 0600 or better. (See
is an optional second device file name.
True automatic call units use a separate device file for data and for dialing;
field specifies the data port, while the
field specifies the dialing port.
field is unused, it must not be left empty.
Insert a dummy entry as a placeholder, such as ``0'' or ``unused.''
is an integer number that
specifies the line baud (for dialers and direct lines) or the port number (for
may be preceded by a non-numeric prefix.
This is to differentiate among devices that have identical
and baud, but are distinctly different.
For example, ``1200'' could refer to all Bell 212-compatible modems,
``V1200'' to Racal-Vadic modems, and ``C1200'' to CCITT modems,
Similarly, ``W1200'' could denote long distance lines, while ``L1200''
could refer to local phone lines.
applies only to ACU devices. This is the "brand" or type of the ACU or modem.
AT&T 2224 2400 baud modem.
Concord Data Systems 224 2400 baud modem.
Hayes Smartmodem 1200 and compatible autodialing modems.
It is also permissible to include the letters `T' and `P' in the phone
to change to tone or pulse midway through dialing.
(Note that a leading `T' or `P' will be interpreted as a dialcode!)
Hayes Smartmodem 2400 and compatible modems.
Novation ``Smart Cat'' autodialing modem.
Penril Corp ``Hayes compatible'' modems (they really aren't or
Racal-Vadic 820 dialer with 831 adapter in a MACS configuration.
Racal-Vadic 212 autodialing modem.
Racal-Vadic 811s dialer with 831 adapter.
Racal-Vadic 820 dialer with 831 adapter.
Racal-Vadic 3450 and 3451 series autodialing modems.
Ventel 212+ autodialing modem.
Racal-Vadic 811 dialer with 831 adapter in a MACS configuration.
script for getting through a smart port selector,
or for issuing special commands to the modem.
The syntax is identical to that of the Expect/Send script of
The difference is that the
the connection is made, while the
/usr/lib/uucp/UUAIDS/L-devices L-devices example
uucp(1C), uux(1C), L.sys(5), uucico(8C)