linux-kernel - Re: [PATCH 1/3] gpiolib: Add ability to get GPIO pin direction

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Message-ID: <AANLkTins1TanjbbwVJixmLcO9Gs-z7jryN8Hs0o_EWNK@mail.gmail.com>
Date:	Mon, 14 Feb 2011 09:02:02 -0700
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Peter Tyser <ptyser@...-inc.com>
Cc:	linux-kernel@...r.kernel.org, Alek Du <alek.du@...el.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Eric Miao <eric.y.miao@...il.com>,
	"Uwe Kleine-K?nig" <u.kleine-koenig@...gutronix.de>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Joe Perches <joe@...ches.com>
Subject: Re: [PATCH 1/3] gpiolib: Add ability to get GPIO pin direction

On Mon, Feb 14, 2011 at 8:48 AM, Peter Tyser <ptyser@...-inc.com> wrote:
> On Thu, 2011-01-06 at 13:54 -0600, Peter Tyser wrote:
>> Add a new get_direction() function to the gpio_chip structure.  This is
>> useful so that the direction of a pin can be determined when its
>> exported.  Previously, the direction defaulted to 'in' regardless of the
>> actual configuration of the GPIO pin which resulted in the 'direction'
>> sysfs file often being incorrect.
>>
>> If a GPIO driver implements get_direction(), it is called in
>> gpio_request() to set the initial direction of the pin accurately.
>
> I see Grant was just added as a GPIO maintainer, so added him on CC.
>
> Anything gating getting these 3 patches being picked up?

I'll take a look at them later today.

g.
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