linux-kernel - Re: [RFC] Staging:IIO: New ABI

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Message-ID: <20100127070752.GB16672@ucw.cz>
Date:	Wed, 27 Jan 2010 08:07:53 +0100
From:	Pavel Machek <pavel@....cz>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Greg KH <greg@...ah.com>,
	Jonathan Cameron <kernel@...23.retrosnub.co.uk>,
	Jonathan Cameron <jic23@....ac.uk>,
	LKML <linux-kernel@...r.kernel.org>,
	Manuel Stahl <manuel.stahl@....fraunhofer.de>,
	"Hennerich, Michael" <Michael.Hennerich@...log.com>,
	"Frysinger, Michael" <Michael.Frysinger@...log.com>,
	"Getz, Robin" <Robin.Getz@...log.com>,
	Jean Delvare <khali@...ux-fr.org>,
	"Trisal, Kalhan" <kalhan.trisal@...el.com>,
	"Zhang, Xing Z" <xing.z.zhang@...el.com>,
	Ira Snyder <iws@...o.caltech.edu>
Subject: Re: [RFC] Staging:IIO: New ABI


> > > Nope. And I am also interested in this since I am sittign on a bunch of
> > > accelerometers, magnetometers, etc drivers that are trying to plug into
> > > input sysbsystem and quite unsure what to do with them.
> > > 
> > > It was OK whch HDAPS and friends when they were using input for
> > > secondary, toyish purposes, but these new drivers trying to use input
> > > devnts as primary API and I am unsure if it is the best solution.
> > > Accelerometer might be used as an input device but not always an input
> > > device.
> > 
> > Yeah, I see it using a joystick interface, which might be acceptable for
> > "toy" devices like you say.
> > 
> > But for "real" ones, we should do something else.
> > 
> > Maybe, for devices that are going to be used by x.org, like the "toy"
> > ones, we stick with the current input interface, but for others, we use
> > a "real" interface, probably through hwmon, so that users can get the
> > real data out in a consistant manner.
> 
> I'd rather have all of them use real interface and then have a bridge
> to input module to enable toyish mode (unless the device in question
> is really truly an input device).

Well, if you look at the PDA class devices, they really use
magnetometers and accelerometers for input. I guess we should look at
better support in input...
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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