linux-kernel - Re: [PATCH] gpio: export 'debounce' attribute if supported by the gpio chip

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Date:	Mon, 10 Dec 2012 10:48:19 -0800
From:	Guenter Roeck <groeck-dsl@...global.net>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Guenter Roeck <linux@...ck-us.net>,
	linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH] gpio: export 'debounce' attribute if supported by the
 gpio chip

On Mon, Dec 10, 2012 at 11:04:09AM +0100, Linus Walleij wrote:
> On Fri, Dec 7, 2012 at 5:49 PM, Alan Cox <alan@...rguk.ukuu.org.uk> wrote:
> 
> >> I could imagine declaring the activity request buttons to be "input", but for
> >> presence detects it is a bit far fetched and would add too much complexity.
> >
> > Android tries to address this with its switch class driver, but I'm not
> > sure its actually got anything over making them input devices.
> 
> This has actually been merged into the kernel proper as drivers/extcon.
> 
> So another poke on Günther if this fulfills the needs?
> 
I'll look into it. Currently I am hampered by a cold which seems to mug my
brain, and technically by the need to backport extcon to 3.0 (if that is even
possible) since our chip vendor does not yet support a more recent kernel.

Thanks,
Guenter
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