From mboxrd@z Thu Jan  1 00:00:00 1970
From: Henrik Rydberg <rydberg@euromail.se>
Subject: Re: [PATCH] input: Add a detailed multi-touch finger data report
 protocol
Date: Thu, 20 Nov 2008 00:34:33 +0100
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Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>, Andrew Morton <akpm@linux-foundation.org>, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org

Jim Gettys wrote:
[...]
> Also, I'm still concerned about using elipses. I doubt very much any
> hardware will ever be reporting elipses; more likely are parallelograms,
> or trapezoids, other simple geometric figures, rather than a center with
> size and orientation.

The bcm5974 chip is doing precisely this.

Henrik