From: Chris Ball <cjb@laptop.org>
To: "Marc-André Hébert" <hebert.marcandre@gmail.com>
Cc: linux-mmc@vger.kernel.org
Subject: Re: Question about read only flag
Date: Mon, 31 Jan 2011 15:54:22 +0000 [thread overview]
Message-ID: <20110131155422.GA28016@void.printf.net> (raw)
In-Reply-To: <AANLkTi=odLjJtR19fMAyDNB9f+FV_Y-e48Li7fkZTKrv@mail.gmail.com>
Hi Marc-André,
On Mon, Jan 31, 2011 at 09:01:02AM -0500, Marc-André Hébert wrote:
> Hello,
>
> I have on an OMAPL138 board running 2.6.33-rc4 (I would liked to try a
> more recent kernel but I do not have any boards which supports a more
> recent version). I noticed that I was unable to detect from sysfs if
> the inserted card was set to read only. The block device's
> /sys/class/block/mmcblk0/ro entry always reported 0. The read only
> gpio is correctly setup as opening the device for writing fails as
> expected.
Interesting, thanks -- no, I don't imagine this is intentional, and I can
confirm the behavior on an x86 laptop/SDHCI running 2.6.38-rc2. Your
patch looks correct to me. I'm surprised no-one's noticed this before.
Could you re-send it as a Git patch with a Signed-off-by: line, please?
--
Chris Ball <cjb@laptop.org> <http://printf.net/>
One Laptop Per Child
prev parent reply other threads:[~2011-01-31 15:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-31 14:01 Question about read only flag Marc-André Hébert
2011-01-31 15:54 ` Chris Ball [this message]
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