testing a serial input tty device

[Steve Longenecker]

I am looking for a simple test for a serial input tty device. tail -f /dev/tty# does not seem to work. Looking for suggestions.

[Hai Nguyen_1]

Steve,

You can use the "write" command to test it. Man write for more details.

Hai

[Darren Prior]

Hi,

Kermit is probably the easiest method to use. Issue the following commands once you're in Kermit:

set line /dev/ttyblah
set speed 9600
connect

Then do whatever you need to get your serial input device to send data, and you should see it on the screen. There's loads of other settings you can change within Kermit, but the defaults should be sufficient.

regards,

Darren.

[Helen French]

You can use "kermit" command to test it:

# man kermit

[Olivier Decorse]

The command i use is simply :
cat /dev/tty#
and i works fine !!
Olivier.

[Michael Steele_2]

'tail -f' is a realtime read of the serial device. While 'cat' is a batch write. For example:

cat file > /dev/tty#

There should be both an input and output device assoicated to the /dev/tty#.

What is the exact device? Modem? Terminal? Terminals are configured in /etc/inittab.

Need more info.