linux-kernel - Re: Smartmedia/xd card support

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Message-ID: <257448.48285.qm@web36701.mail.mud.yahoo.com>
Date:	Thu, 17 Apr 2008 02:11:38 -0700 (PDT)
From:	Alex Dubov <oakad@...oo.com>
To:	Ben Dooks <ben@...ff.org>
Cc:	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: Smartmedia/xd card support - request for comments


--- Ben Dooks <ben@...ff.org> wrote:

> On Thu, Apr 17, 2008 at 01:50:33AM -0700, Alex Dubov wrote:
> > I've implemented, with generous help from JMicron, a native support for Smartmedia/xD picture
> card
> > media. Currently, only JMicron backend is available, but TI expressed some interest in this
> too,
> > so TI Flashmedia backend may soon follow.
> > 
> > Smartmedia cards are quite akin to the dumb flash chips, but they have their quirks that put
> them
> > aside as a separate media type.
> 
> They're NAND chips, just with a standard ECC/block replacement
> stratergy... why isn't this under drivers/mtd ?
> 

They have nothing to do with JFFS or UBI (it's an interchange format).
They require FTL.
On the other hand, "SmartMedia reader" is a rather definite kind of animal that exists on its own.




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