[plug] serial/parallel protocol logging

[Peter Wright]

On Wed, Feb 16, 2000 at 01:11:31PM +0800, Mike Holland wrote:
> How would you go about logging the data on a bi-directional parallel port,
> for the purpose of analysing the protocol? Its a windoze program, but
> the easiest way (for me) might be vmware or wine. Then log and analyse it
> under linux.
>   I've tried looking for info on this, but am having trouble getting
> started. There seem to be plenty of TCP/IP tools, but how do I log from
> /dev/parport ?  What sort of keywords am I looking for?

I think od(1) is what you might be wanting, if you didn't already know
of it. I've used this quite a lot in the past when attempting to get a
touchscreen (hanging off a serial port) to work under X. It's very useful.

NAME
       od - dump files in octal and other formats

SYNOPSIS
       od [OPTION]... [FILE]...
       od --traditional [FILE] [[+]OFFSET [[+]LABEL]]

DESCRIPTION
       Write   an  unambiguous  representation,  octal  bytes  by
       default, of FILE to standard output.   With  no  FILE,  or
       when FILE is -, read standard input.

[ etc .. ]


Basically, something like

$ od < /dev/parport

should be what you're wanting.

> Mike Holland <mike at golden.wattle.id.au>            Perth, Australia.

Hope that helps,

Pete.
-- 
http://cygnus.uwa.edu.au/~pete/


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