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Message-Id: <200706291142.50893.u.luckas@road.de>
Date:	Fri, 29 Jun 2007 11:42:50 +0200
From:	Uli Luckas <u.luckas@...d.de>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	"Midhun Agnihotram" <agnimidhun@...il.com>,
	"Pierre Ossman" <drzeus-mmc@...eus.cx>,
	"Hans-Jürgen Koch" <hjk@...utronix.de>,
	jdi@....org
Subject: Re: Fwd: Mounting MMC card

On Friday, 29. June 2007, Midhun Agnihotram wrote:
> Hi All,
>
> > Let's try something a lot less complex than mounting. Try running:
> >         dd if=/dev/mmcblk0 of=/dev/null count=100
>
>     Here goes the output(error).
>
> / # dd if=/dev/mmcblk0 of=/dev/null count=100
> dd: can't open '/dev/mmcblk0': No such device or address
>
>     The /dev is has the following:
>
> / # ls -l /dev | grep mmc
> brwxrwxrwx    1 0        0        254,   0 Jun 26  2007 mmcblk0
> brwxrwxrwx    1 0        0        254,   1 Jun 26  2007 mmcblk0p0
> brwxrwxrwx    1 0        0        254,   2 Jun 26  2007 mmcblk0p1
> brwxrwxrwx    1 0        0        254,   3 Jun 26  2007 mmcblk0p2
> brwxrwxrwx    1 0        0        254,   4 Jun 26  2007 mmcblk0p3
>
If I remember correctly, mmc devices did not have fixed majors/minors 
allocated until recently. Either get a recent kernel or use some kind of 
hotplug (udev) scripts to create your device nodes with dynamically allocated 
major/minors.

Regards
Uli



-- 

------- ROAD ...the handyPC Company - - -  ) ) )

Uli Luckas
Software Development

ROAD GmbH
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