L-DEVICES(5) L-DEVICES(5)
NAME
L-devices - UUCP device description file
DESCRIPTION
The L-devices file is consulted by the UUCP daemon
uucico(8) under the direction of L.sys(5) for information
on the devices that it may use. Each line describes
exactly one device.
A line in L-devices has the form:
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 `\' character
to the end of the line.
Caller denotes the type of connection, and must be one of
the following:
ACU Automatic call unit, e.g., autodialing modems such
as the Hayes Smartmodem 1200 or Novation ``Smart
Cat''.
DIR Direct connect; hardwired line (usually RS-232) to
a remote system.
DK AT&T Datakit.
MICOM Micom Terminal switch.
PAD X.25 PAD connection.
PCP GTE Telenet PC Pursuit.
SYTEK Sytek high-speed dedicated modem port connection.
TCP Berkeley TCP/IP or 3Com UNET connection. These are
mutually exclusive. Note that listing TCP
connections in L-devices is superfluous; uucico
does not even bother to look here since it has all
the information it needs in L.sys(5).
Device 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 chmod(2)).
CallUnit is an optional second device file name. True
automatic call units use a separate device file for data
and for dialing; the Device field specifies the data port,
while the Callunit field specifies the dialing port. If
the Callunit field is unused, it must not be left empty.
UUCP 1
L-DEVICES(5) L-DEVICES(5)
Insert a dummy entry as a placeholder, such as ``0'' or
``unused.''
Class is an integer number that specifies the line baud
(for dialers and direct lines) or the port number (for
network connections).
The Class may be preceded by a non-numeric prefix. This
is to differentiate among devices that have identical
Caller 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, all at 1200 baud. Similarly, ``W1200''
could denote long distance lines, while ``L1200'' could
refer to local phone lines.
Dialer applies only to ACU devices. This is the "brand" or
type of the ACU or modem.
DF02 DEC DF02 or DF03 modems.
DF112 Dec DF112 modems. Use a Dialer field of DF112T to
use tone dialing, or DF112P for pulse dialing.
att AT&T 2224 2400 baud modem.
cds224 Concord Data Systems 224 2400 baud modem.
dn11 DEC DN11 Unibus dialer.
hayes Hayes Smartmodem 1200 and compatible autodialing
modems. Use a Dialer field of hayestone to use
tone dialing, or hayespulse for pulse dialing. It
is also permissible to include the letters `T' and
`P' in the phone number (in L.sys) to change to
tone or pulse midway through dialing. (Note that
a leading `T' or `P' will be interpreted as a
dialcode!)
hayes2400
Hayes Smartmodem 2400 and compatible modems. Use
a Dialer field of hayes2400tone to use tone
dialing, or hayes2400pulse for pulse dialing.
Note that the use of hayes2400tone or
hayes2400pulse causes an '&C1' command to be sent
to the modem when it is being initialized. The
'&C1' command will cause the Hayes modem to set
its DCD output to logic OFF since no carrier is
detected. DCD going to OFF will, in turn, cause
the tty port to close since the port thinks that
the modem is not available. See ttyconfig(8) and
st(4) for special wiring information that allows
the tty port to ignore the modem's DCD signal.
UUCP 2
L-DEVICES(5) L-DEVICES(5)
hayesvtone
hayesvpulse
Very-aggressive version of the Hayes driver,
especially suitable for Telebit modems with down-
rev ROMs.
novation
Novation ``Smart Cat'' autodialing modem.
penril Penril Corp ``Hayes compatible'' modems (they
really aren't or they would use the hayes entry.)
rvmacs Racal-Vadic 820 dialer with 831 adapter in a MACS
configuration.
va212 Racal-Vadic 212 autodialing modem.
va811s Racal-Vadic 811s dialer with 831 adapter.
va820 Racal-Vadic 820 dialer with 831 adapter.
vadic Racal-Vadic 3450 and 3451 series autodialing
modems.
ventel Ventel 212+ autodialing modem.
vmacs Racal-Vadic 811 dialer with 831 adapter in a MACS
configuration.
Expect/Send is an optional Expect/Send 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 L.sys. The difference is that
the L-devices script is used before the connection is
made, while the L.sys script is used after.
FILES
/etc/uucp/L-devices
SEE ALSO
uucp(1), uux(1), L.sys(5), uucico(8).
UUCP 3