From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from co9ehsobe005.messaging.microsoft.com ([207.46.163.28] helo=co9outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VA9XP-000638-58 for linux-mtd@lists.infradead.org; Fri, 16 Aug 2013 02:13:15 +0000 From: Huang Shijie To: Subject: [PATCH v4 2/6] mtd: add a new sys node to show the ecc step size Date: Fri, 16 Aug 2013 10:10:05 +0800 Message-ID: <1376619009-8622-3-git-send-email-b32955@freescale.com> In-Reply-To: <1376619009-8622-1-git-send-email-b32955@freescale.com> References: <1376619009-8622-1-git-send-email-b32955@freescale.com> MIME-Version: 1.0 Content-Type: text/plain Cc: Huang Shijie , computersforpeace@gmail.com, linux-mtd@lists.infradead.org, pekon@ti.com, dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Add a new sys node to show the ecc step size. The application then can uses this node to get the ecc step size. Signed-off-by: Huang Shijie --- drivers/mtd/mtdcore.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 048c823..5e14d54 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -285,6 +285,16 @@ static DEVICE_ATTR(bitflip_threshold, S_IRUGO | S_IWUSR, mtd_bitflip_threshold_show, mtd_bitflip_threshold_store); +static ssize_t mtd_ecc_step_size_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mtd_info *mtd = dev_get_drvdata(dev); + + return snprintf(buf, PAGE_SIZE, "%u\n", mtd->ecc_step_size); + +} +static DEVICE_ATTR(ecc_step_size, S_IRUGO, mtd_ecc_step_size_show, NULL); + static struct attribute *mtd_attrs[] = { &dev_attr_type.attr, &dev_attr_flags.attr, @@ -296,6 +306,7 @@ static struct attribute *mtd_attrs[] = { &dev_attr_numeraseregions.attr, &dev_attr_name.attr, &dev_attr_ecc_strength.attr, + &dev_attr_ecc_step_size.attr, &dev_attr_bitflip_threshold.attr, NULL, }; -- 1.7.1