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Subject: Re: [PATCH] libmtd: allow write operations when MEMWRITE is not
 supported
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Brian Norris <computersforpeace@gmail.com>, Peter Korsgaard
 <jacmet@sunsite.dk>
Date: Sat, 17 Dec 2011 16:44:42 +0200
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On Mon, 2011-12-12 at 13:40 -0800, Brian Norris wrote:
> On Mon, Dec 12, 2011 at 1:26 PM, Artem Bityutskiy <dedekind1@gmail.com> w=
rote:
> > On Fri, 2011-12-09 at 11:45 -0800, Brian Norris wrote:
> >> MEMWRITE is a recently introduced write interface for MTD; however, it
> >> is, for now, only supported on NAND flash. mtd-utils should fall back =
to
> >> old write methods when either ENOTTY or EOPNOTSUPP are returned.
> >>
> >> This is a showstopper when, for instance, using ubiformat on NOR, whic=
h
> >> don't have a mtd->write_oob interface (and thus don't support MEMWRITE=
):
> >>
> >>   ubiformat: formatting eraseblock 2 --  1 % complete  libmtd: error!:=
 MEMWRITE ioctl failed for eraseblock 2 (mtd3)
> >>           error 122 (Operation not supported)
> >>
> >> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
> >
> > I guess this require an urgent mtd-utils release.

OK, I've cut mtd-utils-1.4.9 bug-fix release, this time with my
new script, so I hope nothing is forgotten.

Peter, please, update - this release fixes a bad bug which breaks NOR
erase operation in not-yet-released 3.2 kernel.


--=20
Best Regards,
Artem Bityutskiy

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