From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030196AbXDJBGx (ORCPT ); Mon, 9 Apr 2007 21:06:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030197AbXDJBGx (ORCPT ); Mon, 9 Apr 2007 21:06:53 -0400 Received: from smtp.osdl.org ([65.172.181.24]:39302 "EHLO smtp.osdl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030196AbXDJBGw (ORCPT ); Mon, 9 Apr 2007 21:06:52 -0400 Date: Mon, 9 Apr 2007 18:06:42 -0700 From: Andrew Morton To: Helge Hafting Cc: Dmitry Torokhov , linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net Subject: Re: usb touchscreen breakage in 2.6.21-rc5-mm4 ? Message-Id: <20070409180642.c9847de2.akpm@linux-foundation.org> In-Reply-To: <20070409223643.GB2198@aitel.hist.no> References: <20070407005458.GA18985@aitel.hist.no> <200704062237.13118.dtor@insightbb.com> <20070409223643.GB2198@aitel.hist.no> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 10 Apr 2007 00:36:43 +0200 Helge Hafting wrote: > On Fri, Apr 06, 2007 at 10:37:12PM -0400, Dmitry Torokhov wrote: > > On Friday 06 April 2007 20:54, Helge Hafting wrote: > > > I have an usb touchscreen (egalax variety) that works with > > > the 2.6.18 kernel supplied by debian. > > > > > > It fails when I compile 2.6.21-rc5-mm4, tuned to the machine > > > in question. Unlike the debian kernel, this kernel don't use > > > modules in order to save boot time. > > > > > > The strange thing is, 2.6.21-rc5-mm4 recognizes the device. > > > dmesg says things like > > > usb 3-2: Manufacturer: eGalac Inc. > > > usb 3-2: Product: USB TouchController > > > > > > and a lot more. Unlike 2.6.18, it never gets around to say > > > "usbcore: registered new driver usbtouchscreen" > > > which seems to indicate a problem. > > > usbcore registers several other drivers, such as usbserial and pl2303 > > > that makes the gps work. It also registers other drivers like > > > usb-storage,usbfs,hub,libusual,hiddev,usbhid. But not usbtouchscreen. > > > I believe I have turned on every config option for usb touchscreen, > > > this should not be missing. > > > > > > Is there something wrong, or could there be a seemingly unrelated option > > > that I need to turn on? > > > > Please make sure that you have CONFIG_USB_TOUCHSCREEN turned on. > > > Unfortunately, I have: > CONFIG_USB_TOUCHSCREEN=y > CONFIG_USB_TOUCHSCREEN_EGALAX=y > > Anything else I may have missed? > Is 2.6.21-rc6 OK? If so, please keep a close eye on 2.6.22-rcX, let us know if/when we've moved this breakage into mainline :(