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Date:      Thu, 12 Apr 2001 13:28:27 +1000
From:      Andrew Johns <johnsa@kpi.com.au>
To:        freebsd-questions@freebsd.org
Subject:   How to:Read directly from serial port to a file
Message-ID:  <3AD520DB.34AC2D03@kpi.com.au>

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Issue:

I've got a PC attached to a phone system which emits data about the phone
lines in use via a serial line at 1200 baud.

What I want is to plug the serial cable into the PC and dump the incoming
data directly to a file for later analysis by 3rd party software.

I have had this working in the past, but the box has been blown away and I
cannot seem to get it going again.

cu only seems to want to talk interactively.  The moment I background the
process it stops (tty output), even though I've directed stdout to a file.

All help appreciated.

System: 3.3-REL
Serial ports: 16550a's x 4
Nothing else is relevant - I've had this working before (maybe not with
cu?)

Thanks

--

aj


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