From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932664AbXDJCaA (ORCPT ); Mon, 9 Apr 2007 22:30:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932759AbXDJCaA (ORCPT ); Mon, 9 Apr 2007 22:30:00 -0400 Received: from gateway.insightbb.com ([74.128.0.19]:15348 "EHLO asav13.insightbb.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932664AbXDJC37 (ORCPT ); Mon, 9 Apr 2007 22:29:59 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aj0KAAyTGkZKhRO4UGdsb2JhbACHNohDAQEq From: Dmitry Torokhov To: Helge Hafting Subject: Re: usb touchscreen breakage in 2.6.21-rc5-mm4 ? Date: Mon, 9 Apr 2007 22:30:03 -0400 User-Agent: KMail/1.9.3 Cc: linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net References: <20070407005458.GA18985@aitel.hist.no> <200704062237.13118.dtor@insightbb.com> <20070409223643.GB2198@aitel.hist.no> In-Reply-To: <20070409223643.GB2198@aitel.hist.no> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200704092230.04144.dtor@insightbb.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday 09 April 2007 18:36, 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? > Hmm, I am concerned because not only you don't have an input device created, you don't even see the driver being registered with usbcore. Could you please try booting with debug_initcall to see with what error code usbtouchscreen initialization fails? -- Dmitry