From mboxrd@z Thu Jan 1 00:00:00 1970 From: Seth Forshee Subject: Re: [PATCH] dell-wmi: Change debug statements from pr_info to pr_debug Date: Wed, 7 Dec 2011 10:43:15 -0600 Message-ID: <20111207164315.GE15875@thinkpad-t410> References: <1321908536-5163-1-git-send-email-seth.forshee@canonical.com> <20111121205230.GA14467@srcf.ucam.org> <20111121211438.GH6736@thinkpad-t410> <20111121211809.GA14950@srcf.ucam.org> <20111121222945.GA14306@thinkpad-t410> <20111121223209.GA16955@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20111121223209.GA16955@srcf.ucam.org> Sender: linux-kernel-owner@vger.kernel.org To: Matthew Garrett Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: platform-driver-x86.vger.kernel.org On Mon, Nov 21, 2011 at 10:32:09PM +0000, Matthew Garrett wrote: > > > On Mon, Nov 21, 2011 at 03:14:38PM -0600, Seth Forshee wrote: > > > > On Mon, Nov 21, 2011 at 08:52:30PM +0000, Matthew Garrett wrote: > > > > > They're intended to be there, in the same way that the keyboard code > > > > > generates unknown scancode errors. We want to know when users have keys > > > > > that don't work. > > > > > > > > All right, but what about the unknown WMI events? Those are the bigger > > > > problem anyway, as at least one machine (the Latitude XT2) can generate > > > > a lot of these messages for unknown reasons. It doesn't appear that > > > > anyone has been making use of these messages since we still only support > > > > one event. Would you object to demoting that one? > > > > > > Those can probably be ignored, but again it would be nice to find out > > > what they actually mean so we know whether we can do anything with them. > > > Any chance of you being able to work with Dell on that? > > > > I'll see what I can do. > > Great, thanks. If we don't work out what they are then we can certainly > drop the error - I agree that telling the user about something that just > confuses us isn't helpful. I've tried a few different avenues trying to get this informatin out of Dell, but so far I've gotten very little. 0x11 is a status change event notification, apparently sent when there are changes to things like battery charge status, ALS level, etc. I haven't received any information about how to interpret the payload, and what little Dell kit I have doesn't seem to send this event. I've received no informtion at all on the 0xf event. The only thing I really know about is from a user report stating that it's seen on the XT2 when opening and closing the lid in notebook orientation. I can take further action if Dell becomes more forthcoming, but I'm not holding out much hope at this point. So I can send a new patch demoting only the WMI event message to debug, or I can silence it only for these specific events. Do you have a preference? Thanks, Seth