From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759362AbYEVSWc (ORCPT ); Thu, 22 May 2008 14:22:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753207AbYEVSWX (ORCPT ); Thu, 22 May 2008 14:22:23 -0400 Received: from mail.fieldses.org ([66.93.2.214]:40711 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752682AbYEVSWX (ORCPT ); Thu, 22 May 2008 14:22:23 -0400 Date: Thu, 22 May 2008 14:22:17 -0400 To: Tom Spink Cc: drzeus-mmc@drzeus.cx, linux-kernel@vger.kernel.org Subject: Re: 2.6.24 not recognizing 2G MMC card? Message-ID: <20080522182217.GA10760@fieldses.org> References: <20080521172104.GC2592@fieldses.org> <7b9198260805211101s1fb96533tc86a614008833741@mail.gmail.com> <20080522033822.GD14376@fieldses.org> <7b9198260805221110gb4df390t67d6bd9c812d71da@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7b9198260805221110gb4df390t67d6bd9c812d71da@mail.gmail.com> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) From: "J. Bruce Fields" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 22, 2008 at 07:10:22PM +0100, Tom Spink wrote: > 2008/5/22 J. Bruce Fields : > > On Wed, May 21, 2008 at 07:01:10PM +0100, Tom Spink wrote: > >> 2008/5/21 J. Bruce Fields : > >> > Please forgive a somewhat naive question--I'm not sure how to go about > >> > debugging this kind of thing: > >> > > >> > I have a Dell 1420n with card readers reported by lspci as: > >> > > >> > 03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22) > >> > 03:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12) > >> > > >> > I have a 512MB MicroSD card which seems to be recognized fine, but a 2GB > >> > MMC card is not. > >> > > >> > I'm using a stock Ubuntu 8.04 kernel, which reports itself as > >> > 2.6.24-16-generic. > >> > > >> > Skimming through commits to drivers/mmc, > >> > 5ae70296c85f96a9969891d9de3410ebdf210b71 "mmc: Disabler for Ricoh MMC > >> > controller", looks relevant, but seems to be included in 2.6.24. > >> > > >> > Anything I should try? Thanks in advance for any suggestions. > >> > > >> > --b. > >> > >> Hi, > >> > >> What does: lsmod | grep ricoh, give you? Anything? > > > > root@pig:/home/bfields# lsmod | grep ricoh > > ricoh_mmc 4352 0 > > > > --b. > > > > So does the MMC card work on other card readers, i.e. it's not > damaged? I use it in a Nokia 770, and it works there. It needs an adapter for the laptop which it doesn't need for the 770; googling around.... Something that looks like this: http://www.globemaster.com.tw/data/rs mmc adapter.jpg So I suppose the adapter could be broken. Seems unlikely, though--doesn't look like it does anything more than make the card fit physically in the slot. > When you plug the card into the reader, can you check dmesg > and see if there's any relevant information in there, and post it > here? It doesn't trigger any dmesg output at all. --b.