linux-kernel - Re: sysfs and power management

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Message-ID: <20101101180740.GA17148@suse.de>
Date:	Mon, 1 Nov 2010 11:07:40 -0700
From:	Greg KH <gregkh@...e.de>
To:	Alan Cox <alan@...ux.intel.com>
Cc:	samu.p.onkalo@...ia.com,
	ext Henrique de Moraes Holschuh <hmh@....eng.br>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: sysfs and power management

On Mon, Nov 01, 2010 at 04:57:01PM +0000, Alan Cox wrote:
> > I took a look to that. It seems that iio is more or less sysfs based.
> > There are ring buffers and event device which are chardev based
> > but still the data outside ring buffer and the control is sysfs based.
> 
> IIO is sysfs dependant, heavyweight and makes no sense for some of the
> sysfs based drivers. IIO is also staging based and Linus already threw
> out the last attempt to unify these drivers sanely with an ALS layer -
> which was smaller, cleaner and better !

I think we need to revisit this issue again, before iio is merged to the
main kernel tree.  I've been totally ignoring the iio user/kernel api at
the moment, waiting for things to settle down there.

thanks,

greg k-h
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