From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932069Ab2GAXZo (ORCPT ); Sun, 1 Jul 2012 19:25:44 -0400 Received: from gherkin.frus.com ([192.158.254.49]:36959 "EHLO gherkin.frus.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755681Ab2GAXZn (ORCPT ); Sun, 1 Jul 2012 19:25:43 -0400 Date: Sun, 1 Jul 2012 18:25:42 -0500 From: Bob Tracy To: Henrik Rydberg Cc: Greg KH , Ming Lei , linux-kernel@vger.kernel.org Subject: Re: 3.5-rcX: USB support without udev? Message-ID: <20120701232542.GA11680@gherkin.frus.com> References: <20120628131651.GA14492@gherkin.frus.com> <20120629033600.GA3591@gherkin.frus.com> <20120630033519.GA4792@kroah.com> <20120701201411.GB8603@gherkin.frus.com> <20120701204118.GA1018@polaris.bitmath.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120701204118.GA1018@polaris.bitmath.org> User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jul 01, 2012 at 10:41:18PM +0200, Henrik Rydberg wrote: > > Kernel built from the standard kernel.org tree. All > > drivers needed at boot time are built-in, except now there's probably > > something missing on the USB side of things. No initrd. > > Are modules turned off as well? No. The only drivers that are built-in are the ones I need at boot time and/or continuously thereafter. Everything else is modular. > I cannot see your attached files, but is there any chance this is > about HID, not USB? Posted a follow-up message immediately when I realized I forgot to include the config file :-(. Yes, it very well *could* be a HID issue. I was quick to blame it on a deprecated feature that finally got removed, when this might well have been a "disguised" regression. > > Per the syslog entries I included in my initial post on this thread, the > > only difference between the pre- and post- usbfs removal cases seems to > > be whatever is needed for the input subsystem to see the USB keyboard > > and mouse. I see the USB hubs and attached devices getting detected, > > but whatever "glue" allows the keyboard and mouse to work isn't there, > > and the input subsystem doesn't emit the expected messages at boot time. > > If you did a 'make oldconfig' on anything prior to -rc5, chances are > you do not have CONFIG_HID_GENERIC=y in your .config. That might well be the missing "glue." I'm building -rc5 as I type this. Should have an answer in a few hours. Thanks for the clue! --Bob