From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.newsguy.com ([74.209.136.69]) by casper.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1RPIVl-00048v-H7 for linux-mtd@lists.infradead.org; Sat, 12 Nov 2011 18:41:06 +0000 Message-ID: <4EBECB89.2020102@newsguy.com> Date: Sat, 12 Nov 2011 11:39:53 -0800 From: Mike Dunn MIME-Version: 1.0 To: Robert Jarzmik Subject: Re: [PATCH v2 07/16] mtd/docg3: add OOB layout to mtdinfo References: <1320912342-30147-1-git-send-email-robert.jarzmik@free.fr> <1320912342-30147-8-git-send-email-robert.jarzmik@free.fr> In-Reply-To: <1320912342-30147-8-git-send-email-robert.jarzmik@free.fr> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: linux-mtd@lists.infradead.org, dwmw2@infradead.org, linux-kernel@vger.kernel.org, dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 11/10/2011 12:05 AM, Robert Jarzmik wrote: > +static struct nand_ecclayout docg3_oobinfo = { > + .eccbytes = 8, > + .eccpos = {7, 8, 9, 10, 11, 12, 13, 14}, > + .oobfree = {{0, 7}, {15, 1} }, > + .oobavail = 8, > +}; > + Just FYI, per Ivan's suggestion, I changed this to use the last oob byte as a "page programmed" flag for the purpose of detecting bit flips when reading a blank page. Maybe something to keep in mind. You can have a look at the latest G4 driver patch to see exactly how I use it. Mike