From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andres Salomon Subject: Re: board identification in /sys Date: Thu, 18 Aug 2011 20:14:56 -0700 Message-ID: <20110818201456.5517ae55@debxo> References: <20110818121530.08946a6e@queued.net> <20110819022306.GD30097@yookeroo.fritz.box> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110819022306.GD30097-787xzQ0H9iQXU02nzanrWNbf9cGiqdzd@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org To: David Gibson Cc: devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org List-Id: devicetree@vger.kernel.org On Fri, 19 Aug 2011 12:23:06 +1000 David Gibson wrote: > On Thu, Aug 18, 2011 at 12:15:30PM -0700, Andres Salomon wrote: > > I've been paying partial attention to the following thread: > > http://marc.info/?l=linux-hotplug&m=131352330625733&w=2 > > > > It's an interesting discussion. I realize that > > moving /proc/device-tree to /sys would probably violate > > sysrq-rules.txt, but it would be nice to have a common way to > > represent things like cpu type, board id, etc in /sys that is > > populated from the DT. I haven't seen that discussed here yet, has > > anyone considered it? > > Seems like a specious argument to me. Despite all the problems of > /proc, the contents of /proc/device-tree are perfectly well-defined. > Or at least, its problems are entirely its own and not related to the > general problems of /proc. The only argument here seems to be that > it's in /proc, and that's dealt with if that helper script just thinks > of /proc/device-tree as one possible place for the device tree path. > In the future it could be under /sys. Indeed on sparc I think their > device tree representation is a separate filesystem and could be > anywhere. Under sparc, it's typically in /openprom iirc. I'd be fine with converting it to /sys/device-tree or some such thing if that was okay with maintainers.