From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Gibson Subject: Re: board identification in /sys Date: Fri, 19 Aug 2011 12:23:06 +1000 Message-ID: <20110819022306.GD30097@yookeroo.fritz.box> References: <20110818121530.08946a6e@queued.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20110818121530.08946a6e-pFFUokh25LWsTnJN9+BGXg@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: Andres Salomon Cc: devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org List-Id: devicetree@vger.kernel.org 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. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson