From 990a3af0c20590954be01a95c2c3fcef9360a836 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Tue, 24 Jun 2014 10:55:50 -0300 Subject: mtd: Add sysfs attributes to expose the ECC stats fields These new sysfs device attributes allow us to retrieve the ECC and bad block stats by poking a sysfs file, which is often more convenient than using the ioctl. Signed-off-by: Ezequiel Garcia Tested-by: Pekon Gupta Signed-off-by: Brian Norris --- Documentation/ABI/testing/sysfs-class-mtd | 38 +++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd index 1399bb2da3eb..76ee192f80a0 100644 --- a/Documentation/ABI/testing/sysfs-class-mtd +++ b/Documentation/ABI/testing/sysfs-class-mtd @@ -184,3 +184,41 @@ Description: It will always be a non-negative integer. In the case of devices lacking any ECC capability, it is 0. + +What: /sys/class/mtd/mtdX/ecc_failures +Date: June 2014 +KernelVersion: 3.17 +Contact: linux-mtd@lists.infradead.org +Description: + The number of failures reported by this device's ECC. Typically, + these failures are associated with failed read operations. + + It will always be a non-negative integer. In the case of + devices lacking any ECC capability, it is 0. + +What: /sys/class/mtd/mtdX/corrected_bits +Date: June 2014 +KernelVersion: 3.17 +Contact: linux-mtd@lists.infradead.org +Description: + The number of bits that have been corrected by means of the + device's ECC. + + It will always be a non-negative integer. In the case of + devices lacking any ECC capability, it is 0. + +What: /sys/class/mtd/mtdX/bad_blocks +Date: June 2014 +KernelVersion: 3.17 +Contact: linux-mtd@lists.infradead.org +Description: + The number of blocks marked as bad, if any, in this partition. + +What: /sys/class/mtd/mtdX/bbt_blocks +Date: June 2014 +KernelVersion: 3.17 +Contact: linux-mtd@lists.infradead.org +Description: + The number of blocks that are marked as reserved, if any, in + this partition. These are typically used to store the in-flash + bad block table (BBT). -- cgit