From: Jamie Lokier <jamie@shareable.org>
To: Indraneel <indraneel.m@samsung.com>
Cc: linux-mtd <linux-mtd@lists.infradead.org>,
"David H. Lynch Jr." <dhlii@dlasys.net>
Subject: Re: Block devices
Date: Thu, 21 Feb 2008 08:45:08 +0000 [thread overview]
Message-ID: <20080221084508.GB20156@shareable.org> (raw)
In-Reply-To: <47BD46F9.9000708@samsung.com>
Indraneel wrote:
> > Can I write a filesystem driver for a flash device that does not
> > require a block device ?
>
> AFAIK, for a flash file system you need a Block Device. But you can
> write a character driver to access the flash without a Block Device.
I think JFFS2 (flash file system) does not require a block device. If
you mount /dev/mtdblockN with JFFS2, it actually looks up the
corresponding MTD character device and uses that instead. The same is
probably true of the other dedicated flash filesystems.
-- Jamie
next prev parent reply other threads:[~2008-02-21 10:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-21 7:05 Block devices David H. Lynch Jr.
2008-02-21 9:40 ` Indraneel
2008-02-21 8:45 ` Jamie Lokier [this message]
2008-02-21 16:48 ` Christoph Hellwig
2008-02-21 16:48 ` Christoph Hellwig
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