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Date: Fri, 13 Jun 2003 21:51:29 +0100 (BST)
From: James Simmons <jsimmons@infradead.org>
To: Vojtech Pavlik <vojtech@ucw.cz>
cc: Peter Berg Larsen <pebl@math.ku.dk>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Synaptics TouchPad driver for 2.5.70
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> > Just as a idea for API. How about ABS_AREA or REL_AREA instead of 
> > ABS_MISC. The idea is the pressure value returned should be about 
> > the same if one presses hard with one finger or softly with a whole 
> > hand.
> 
> Huh? Force = Pressure x Area ... I think you're mixing up force and
> pressure here.

OOps. Your right. I'm thinking the hardware returns a force value. What I 
meant is since we have the hardware returning the pressure and the area 
this data can be used. Knowing the area over which a pressure is applied 
is a good thing. What do you think?