From: David Woodhouse <dwmw2@infradead.org>
To: John Burch <jburch@vincisystems.com>
Cc: linux-mtd@lists.infradead.org
Cc: "'Jörn Engel'" <joern@wohnheim.fh-wedel.de>
Subject: RE: Mtd block access (jffs2 formatted) and mtd char access(unformatted) on different partitions of a single flash device
Date: Wed, 21 May 2003 13:35:35 +0100 [thread overview]
Message-ID: <1053520534.20074.2613.camel@passion.cambridge.redhat.com> (raw)
In-Reply-To: <000701c31f95$38ad1040$1200a8c0@JOHNB>
On Wed, 2003-05-21 at 13:33, John Burch wrote:
> When accessing "raw" flash via the char driver, how can I initiate a
> sector erase?
See how it's done in util/erase.c: ioctl(...MEMERASE...)
> Also, does the mtd driver for AMD CFI devices handle
> AMD's ability to support erasure of multiple sectors simultaneously?
Probably not yet, but there's no reason why it shouldn't. Criticism in
'diff -u' form is preferred :)
> David has it right. The raw "in-kernel" driver deals with flash
> directly on its own, not through mtd.
Then you lose :) If you have sane code which handles multiple concurrent
erases, we'd be happy to merge it so that you can use the mtd driver
without losing out on that feature ;)
--
dwmw2
prev parent reply other threads:[~2003-05-21 12:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-20 20:53 Mtd block access (jffs2 formatted) and mtd char access (unformatted) on different partitions of a single flash device John Burch
2003-05-20 21:13 ` Charles Manning
2003-05-21 9:05 ` Jörn Engel
2003-05-21 9:25 ` David Woodhouse
2003-05-21 12:33 ` Mtd block access (jffs2 formatted) and mtd char access(unformatted) on different partitions of a single flashdevice John Burch
2003-05-21 12:35 ` David Woodhouse [this message]
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