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Date: Wed, 20 Apr 2016 15:25:16 +0200
From: Sascha Hauer <s.hauer@pengutronix.de>
To: linux-mtd@lists.infradead.org
Cc: kernel@pengutronix.de
Subject: Pass -EUCLEN to userspace?
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Hi All,

I am currently working on a program similar to ubihealthd, just for raw
mtd pages, not UBI. Basically I want to find out in userspace if my Nand needs
scrubbing. Is it possible somehow to get this information in userspace?

So far I can count the number of bitflips corrected using the
ECCGETSTATS ioctl. Also I can read the bitflip_threshold from
/sys/class/mtdx/bitflip_threshold. The problem is now that I can only
read full pages, but the bitflip threshold is per ecc_step_size. Simply
dividing by the number of ecc_steps is not accurate. Any way to solve
this?

Sascha

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