From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753597AbYIOItS (ORCPT ); Mon, 15 Sep 2008 04:49:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751991AbYIOItF (ORCPT ); Mon, 15 Sep 2008 04:49:05 -0400 Received: from nf-out-0910.google.com ([64.233.182.184]:41173 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751613AbYIOItC (ORCPT ); Mon, 15 Sep 2008 04:49:02 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :content-type:content-transfer-encoding:sender; b=s8c4WuNtTD1pSZvVcwdFvNTZlgpJgW/pCnM65ExyiiYDlZX2JSYZaPX0kbzj3bVmUr rb/y3lKfDFb1KDhq8ldGwFsgKWuG1ahCwNveqehN78ULAXS+isv2jhQbIIFLrWDumCn5 +iyPinUjWKf9NRfrE6rQZbZY/IxnJsGsiyk9I= Message-ID: <48CE217A.1080409@tuffmail.co.uk> Date: Mon, 15 Sep 2008 09:48:58 +0100 From: Alan Jenkins User-Agent: Thunderbird 2.0.0.16 (X11/20080724) MIME-Version: 1.0 To: Sitsofe Wheeler CC: linux-kernel Subject: Re: Turning off camera also kills card reader on EeePC 900 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Sitsofe Wheeler wrote: > When running Ubuntu from an SD card issuing > echo 0 > /sys/devices/platform/eeepc/camera > as root will cause the camera to be turned off AND the SD card to > immediately disappear (which is rather fatal when you are using it). It's > hard to know if this is intended behaviour by the BIOS (given that they > are both USB devices) or a mistake in the platform driver... It's a bug either way (a regression from the 701 hardware). I think you should be able to isolate it. Firstly, I understand these kill-switches are supposed to be persistent over reboots. You should check that the SD card stays disabled when you reboot. Next, these settings are also exposed in the BIOS configuration screen, right? If it's the same as my 701 then the BIOS will have a separate option for disabling the cardreader. So you could see if the platform driver "camera" switch is simply disabling and enabling the two switches together. Or if there's only a BIOS option for the camera, and not the SD card, then you should test whether it disables the SD card. Regards Alan