From bf977e3f158dc949fd6e1e4195f80d42232cb5fa Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Fri, 16 Aug 2013 10:10:05 +0800 Subject: [PATCH] mtd: add a new sys node to show the ecc step size 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 Signed-off-by: Artem Bityutskiy Signed-off-by: Brian Norris Signed-off-by: David Woodhouse --- drivers/mtd/mtdcore.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 048c823f5c51..5e14d540ba2f 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, }; -- 2.39.5