topic Re: testing a serial input tty device in Operating System - HP-UX

testing a serial input tty device

Steve Longenecker — Tue, 24 Jun 2003 16:01:14 GMT

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.

Re: testing a serial input tty device

Hai Nguyen_1 — Tue, 24 Jun 2003 16:03:36 GMT

Steve,

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

Hai

Re: testing a serial input tty device

Darren Prior — Tue, 24 Jun 2003 16:06:20 GMT

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.

Re: testing a serial input tty device

Helen French — Tue, 24 Jun 2003 16:07:31 GMT

You can use "kermit" command to test it:

# man kermit

Re: testing a serial input tty device

Olivier Decorse — Thu, 10 Jul 2003 11:36:13 GMT

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

Re: testing a serial input tty device

Michael Steele_2 — Thu, 10 Jul 2003 11:56:33 GMT

'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.