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

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Message-Id: <200805191826.18516.david-b@pacbell.net>
Date:	Mon, 19 May 2008 18:26:18 -0700
From:	David Brownell <david-b@...bell.net>
To:	Pavel Machek <pavel@...e.cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Trent Piepho <tpiepho@...escale.com>,
	hartleys <hartleys@...ionengravers.com>,
	Ben Nizette <bn@...sdigital.com>,
	Mike Frysinger <vapier.adi@...il.com>,
	Bryan Wu <cooloney@...nel.org>
Subject: Re: [patch/rfc 2.6.25-git] gpio: sysfs interface

On Monday 19 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.
> 
> ...but it would be consistent with configfs... and face it... doing
> echo > file to make a directory is seriously ugly.

This isn't configfs, and I didn't happen to notice any polite
way for sysfs users to intercept "mkdir", parse the relevant
directory name, reject illegal names, and pre-populate the
just-created directory with relevant contents.


Were you implying it should go into configfs?  If so, do you
maybe have an update to the patch I sent a day or so ago?

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