linux-kernel - RE: [PATCH] gpiolib: introduce for_each_gpio_in

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Date:	Thu, 06 Aug 2009 13:31:20 +1000
From:	Ben Nizette <bn@...sdigital.com>
To:	H Hartley Sweeten <hartleys@...ionengravers.com>
Cc:	David Brownell <david-b@...bell.net>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Jaya Kumar <jayakumar.lkml@...il.com>
Subject: RE: [PATCH] gpiolib: introduce for_each_gpio_in_chip macro

On Tue, 2009-08-04 at 20:48 -0400, H Hartley Sweeten wrote:

> For the record. The reason I sent this is I'm trying to work out an
> extension to gpiolib that adds gpio_port_* access to the API.  Most
> of the gpiolib drivers already the necessary logic since the raw I/O
> is performed on the entire 'chip'.  The API just needs the extensions
> added to request/free the port, set the direction and get/set the value.
> 
> Is this a worthwhile addition?

Plenty of people seem to think so.  Personally I haven't seen a great
use case except "'coz I can", but if you've got one I'd love to hear.

Have you seen http://lkml.org/lkml/2009/1/25/10 ?  Donno what ended up
happening to that patchset..

	--Ben.


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