Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755895AbYKDQRW (ORCPT ); Tue, 4 Nov 2008 11:17:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753665AbYKDQRM (ORCPT ); Tue, 4 Nov 2008 11:17:12 -0500 Received: from mx.logic.tuwien.ac.at ([128.130.175.19]:55476 "EHLO mx.logic.tuwien.ac.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752557AbYKDQRL (ORCPT ); Tue, 4 Nov 2008 11:17:11 -0500 Date: Tue, 4 Nov 2008 17:17:08 +0100 To: Alan Stern Cc: Mattia Dongili , Kernel development list , USB list Subject: Re: usb device not showing up Message-ID: <20081104161708.GA32570@gamma.logic.tuwien.ac.at> References: <20081104093710.GC15846@gamma.logic.tuwien.ac.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.13 (2006-08-11) From: Norbert Preining Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2068 Lines: 47 On Di, 04 Nov 2008, Alan Stern wrote: > > - First booting Vista, then RE-booting (not turning it off in the > > meantime) into linux gives me that device and everything works. > > By "it", did you mean the laptop or the modem? I meant: - first booting vista, then re-booting ... the device shows up (and is functional) - booting from off state the device does not show up and cannot be switched on using /sys/devices/platform/sony-laptop/wwanpower (although the behaviour that it can be switched on using the above sysfs file is documented) > No. I'm interested in seeing the usbmon output for when the modem is > first detected by the USB subsystem. During a normal boot this will > happen before you can start usbmon. > > If you can't boot with the modem off, then try this instead: Unload > ehci-hcd, uhci-hcd, and ohci-hcd, then start up usbmon (copy the 0u > file) and reload whichever driver the modem attaches to. Ok, I will recompile my kernel with USB as modules and do the above. Is there a way to tell the kernel not to load any device drivers/modules (probably overriding modprobe in some way)? Best wishes Norbert ------------------------------------------------------------------------------- Dr. Norbert Preining Vienna University of Technology Debian Developer Debian TeX Group gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094 ------------------------------------------------------------------------------- OUNDLE (vb.) To walk along leaning sideways, with one arm hanging limp and dragging one leg behind the other. Most commonly used by actors in amateur production of Richard III, or by people carrying a heavy suitcase in one hand. --- Douglas Adams, The Meaning of Liff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/