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Date:      Mon, 01 Oct 2001 11:03:14 +0930 (CST)
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        Bart Kus <bsd@shell-server.com>
Cc:        hackers@freebsd.org, Mike Meyer <mwm@mired.org>
Subject:   Re: sio modification
Message-ID:  <XFMail.20011001110314.doconnor@gsoft.com.au>
In-Reply-To: <200109301623.4359@EO>

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On 01-Oct-2001 Bart Kus wrote:
>   The variance for some time-deltas is sometimes as high as a factor of 10 
>  (note: I'm not using the statistical definition of variance - I simply mean 
>  that a +edge -> -edge time can be 100us and then 1000us on the next press of
>  the same button).  Sadly, this seemingly good mechanism doesn't perform well
>  enough to produce the kind of data I'd need for pattern matching.
>  
>       Perhaps actually managing to generate a SIGHUP would cut down on this 
>  variance?
>  
>       I've attached the source for the test program for your reading
enjoyment.
> :) 
>   Don't feel obligated to open it.

If you're making an IR rx/tx device I suggest you visit.. http://www.lirc.org/

They have 'dumb' recievers which is probably what you're using, but there is
also a link for 'smart' one which uses a PIC chip to do the polling...
http://www.geocities.com/SiliconValley/Sector/3863/uir/index.html

You could probably fit the whole thing inside a D9 backshell.

---
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum

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