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L-devices
SYNTAX
/usr/lib/uucp/L-devices
FUNCTION
L-devices contains information about the outside lines and
hard-wired lines that your computer may use for calling other
computers.
The special device files are assumed to be in /dev.
The format of an entry is:
device line call-device speed protocol
where device is a direct dialing device represented by DIR,
or an automatic calling unit represented by ACU.
At the prompt, use the cat program to look at a typical L-devices file.
$PROMPT$
That is correct!
You've got it on the 2nd try.
Good, you understand the concept.
Use cat to print /usr/lib/uucp/L-devices
Enter cat /usr/lib/uucp/L-devices
You will be helped this time.
$PROMPT$
FORGET1
$PROMPT$cat /usr/lib/uucp/L-devices
Observe the result on the terminal!
DIR tty03 0 9600
ACU cul0 cua0 1200
DIR x25.s0 0 300 x
$PROMPT$
- DIR is a direct connection; ACU means automatic calling unit;
- tty03, cu10, and x25.s0 are various lines;
- cua0 is the automatic call unit associated with line,
0 is for hard-wired lines;
- 300, 1200 and 9600 are speeds;
- and x is the X25 protocol.
ACU cul0 cua0 1200
Note the entry ACU cul0 cua0 1200 above. cul0 is the line 0, and cua0 is
the call-device 0. Both the line and the call-device are assumed to be
in the /dev directory.
You must indicate which device name corresponds to cu10 and cua0.
This is done with the ln command, e.g.: ln /dev/tty12 /dev/cua0, and
ln /dev/tty12 /dev/cua0.