From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757617AbYDNMmS (ORCPT ); Mon, 14 Apr 2008 08:42:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752126AbYDNMmH (ORCPT ); Mon, 14 Apr 2008 08:42:07 -0400 Received: from moutng.kundenserver.de ([212.227.126.179]:52766 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752016AbYDNMmG (ORCPT ); Mon, 14 Apr 2008 08:42:06 -0400 From: Arnd Bergmann To: "H. Peter Anvin" Subject: Re: Problem: non-SDHC 2GB SD cards are unreadable Date: Mon, 14 Apr 2008 14:40:48 +0200 User-Agent: KMail/1.9.9 Cc: Alexia Death , linux-kernel@vger.kernel.org References: <200804132326.07713.alexiadeath@gmail.com> <200804140848.39226.arnd@arndb.de> <480343F2.3040401@zytor.com> In-Reply-To: <480343F2.3040401@zytor.com> X-Face: I@=L^?./?$U,EK.)V[4*>`zSqm0>65YtkOe>TFD'!aw?7OVv#~5xd\s,[~w]-J!)|%=]>=?utf-8?q?+=0A=09=7EohchhkRGW=3F=7C6=5FqTmkd=5Ft=3FLZC=23Q-=60=2E=60Y=2Ea=5E?= =?utf-8?q?3zb?=) =?utf-8?q?+U-JVN=5DWT=25cw=23=5BYo0=267C=26bL12wWGlZi=0A=09=7EJ=3B=5Cwg?= =?utf-8?q?=3B3zRnz?=,J"CT_)=\H'1/{?SR7GDu?WIopm.HaBG=QYj"NZD_[zrM\Gip^U MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200804141440.48960.arnd@arndb.de> X-Provags-ID: V01U2FsdGVkX193rDtoHW1YB2tGk2M07feD7oxxVcxIR/rhrYs NhYXpxfCuq9VxxypJTz7QsjmeRXrbLrKQPATn9XpDdv/tbjSAv 9g63+NWAdFg3Wf/fTMM+Q== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday 14 April 2008, H. Peter Anvin wrote: > Actually, I believe 2 GB (non-SDHC) *only* have 1024 byte sectors. > Right, I found out the same after reading the page pointed out by Wander, and the older specifications. SD 2.0 SDHC requires 512 byte sectors now, but the older standard is still used for 2GB cards. Most USB card readers seem to translate the native sector size to 512 byte sectors internally, and we've seen that the linux SCSI disk driver together with the USB mass storage driver doesn't cope well with the device Alexia is using. Arnd <><