Thanx for pointing that out. Sometimes it is easy to forget the
assumptions.
> -----Original Message-----
> From: yaffs-admin@stoneboat.aleph1.co.uk
> [mailto:yaffs-admin@stoneboat.aleph1.co.uk] On Behalf Of Steve Wahl
> Sent: Thursday, 10 February 2005 8:16 a.m.
> To: Steve Wahl
> Cc: yaffs@stoneboat.aleph1.co.uk
> Subject: Re: [Yaffs] ECC byte ordering (Possibly: SIGH, AGAIN?)
>
>
> Hi, again,
>
> I'm committing the wonderful sin of replying to my own
> message! But thinking about this from a newbie's point of
> view, it occured to me that my fundamental disconnect was in
> not recognizing that "Steven Hill's nand_ecc.c" *IS* the "ECC
> functions of the generic MTD-NAND driver", as referred to in
> the original help docs for these two options.
>
> To try and connect the two phrases is probably the biggest
> motivation for me in suggesting changes (repeated below) to
> the Kconfig help strings.
>
> Again, thanks for listening.
>
> --> Steve Wahl
>
> On Wed, Feb 09, 2005 at 10:57:38AM -0600, Steve Wahl wrote:
> >
> > ----------------------Cut here--------------------------------------
> > +config YAFFS_USE_NANDECC
> > + bool "Use ECC functions of the generic MTD-NAND driver"
> > + depends on YAFFS_FS
> > + default y
> > + help
> > + This enables the ECC functions of the generic MTD-NAND driver.
> > + This will not work if you are using the old mtd.
> > +
> > + NB Use NAND ECC does not work at present with yaffsram.
> > ++
> > ++ NB Use NAND ECC has a different ECC byte order than the
> > ++ normal yaffs_ecc.c, and the resulting filesystem format is
> > ++ binary incompatible with a previously existing yaffs
> filesystem.
> > ++ (This different ordering is the same as yaffs_ecc.c generates
> > ++ when ECC_WRONG_ORDER is turned on.)
> > +
> > + If unsure, say Y.
> > +
> > +config YAFFS_ECC_WRONG_ORDER
> > + bool "Use the same ecc byte order as Steven Hill's nand_ecc.c"
> > + depends on YAFFS_FS
> > + help
> > + This makes yaffs_ecc.c use the same ecc byte order as
> > -+ Steven Hill's nand_ecc.c. If not set, then you get the
> > -+ same ecc byte order as SmartMedia.
> > ++ Steven Hill's nand_ecc.c (part of the MTD-NAND driver).
> > ++ If not set, then you get the same ecc byte order as
> SmartMedia.
> > +
> > + If unsure, say N.
> > +
> > ----------------------Cut here--------------------------------------
>
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