linux-kernel - Re: [patch/rfc 2.6.25-git] gpio: sysfs interface

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Message-Id: <1211086536.3892.26.camel@moss.renham>
Date:	Sun, 18 May 2008 14:55:36 +1000
From:	Ben Nizette <bn@...sdigital.com>
To:	David Brownell <david-b@...bell.net>
Cc:	Pavel Machek <pavel@....cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Trent Piepho <tpiepho@...escale.com>,
	hartleys <hartleys@...ionengravers.com>,
	Mike Frysinger <vapier.adi@...il.com>,
	Bryan Wu <cooloney@...nel.org>
Subject: Re: [patch/rfc 2.6.25-git] gpio: sysfs interface


On Sat, 2008-05-17 at 15:14 -0700, David Brownell wrote:
> On Friday 02 May 2008, Pavel Machek wrote:
> > What about mkdir gpio-N to export it?
> 
> Ugh.  That would create way more complication than I want
> to see here.  I thought about that early on, and decided
> that was Not The Way To Go.

I have a userspace gpio interface which uses /dev and configfs.  The
configfs side was really nice (and used mkdir, as configfs does) but I
wasn't a fan of needing udev..  On balance, I like the all-in-one sysfs
way more.

> 
> - Dave
> 
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