[PATCH v2 append] mtd: update the ABI document about the ecc step

[Huang Shijie]

We add a new sys node for ecc step. So update the ABI document about it.

Signed-off-by: Huang Shijie <b32955@xxxxxxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-class-mtd |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
index 3105644..62a1cda 100644
--- a/Documentation/ABI/testing/sysfs-class-mtd
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -173,3 +173,14 @@ Description:
 		This is generally applicable only to NAND flash devices with ECC
 		capability.  It is ignored on devices lacking ECC capability;
 		i.e., devices for which ecc_strength is zero.
+
+What:		/sys/class/mtd/mtdX/ecc_step
+Date:		May 2013
+KernelVersion:	3.10
+Contact:	linux-mtd@xxxxxxxxxxxxxxxxxxx
+Description:
+		The size of ecc step which is used for per ecc correction.
+		See more in the ecc_strength above. This will always be a
+		non-negative integer.
+
+		In the case of devices lacking any ECC capability, it is 0.
-- 
1.7.1


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