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From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Anderson Briglia <anderson.briglia@indt.org.br>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>,
	linux-kernel@vger.kernel.org,
	"Linux-omap-open-source@linux.omap.com" 
	<linux-omap-open-source@linux.omap.com>,
	linux@arm.linux.org.uk, ext David Brownell <david-b@pacbell.net>,
	Tony Lindgren <tony@atomide.com>,
	"Aguiar Carlos (EXT-INdT/Manaus)" <carlos.aguiar@indt.org.br>,
	"Lizardo Anderson (EXT-INdT/Manaus)"
	<anderson.lizardo@indt.org.br>
Subject: Re: [patch 4/5] Add MMC password protection (lock/unlock) support V3
Date: Wed, 11 Jan 2006 14:59:01 +0000	[thread overview]
Message-ID: <20060111145901.GC20523@flint.arm.linux.org.uk> (raw)
In-Reply-To: <43C508E1.4080007@indt.org.br>

On Wed, Jan 11, 2006 at 09:32:17AM -0400, Anderson Briglia wrote:
> Pierre Ossman wrote:
> > Anderson Briglia wrote:
> > 
> > 
> >>@@ -238,6 +295,11 @@ int mmc_register_card(struct mmc_card *c
> >>			if (ret)
> >>				device_del(&card->dev);
> >>		}
> >>+#ifdef CONFIG_MMC_PASSWORDS
> >>+		ret = device_create_file(&card->dev, &mmc_dev_attr_lockable);
> >>+		if (ret)
> >>+			device_del(&card->dev);
> >>+#endif
> >>	}
> >>	return ret;
> >>}
> >> 
> >>
> > 
> > 
> > It might be wise to also check the command classes here. I don't believe
> > SDIO supports locking.
> 
> In this case, the lockable attribute will show "unlockable", which is
> the expected behavior. The lockable attribute will always be present,
> the card being lockable or not.

"unlockable" seems to be confusing.

"Unlockable" may mean something which is locked but can be unlocked
(unlock-able).  Or it may mean something which can't be locked
(un-lockable).

Maybe returning "unsupported", "locked", "unlocked" etc would be
clearer?

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core

      reply	other threads:[~2006-01-11 14:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-09 22:16 [patch 4/5] Add MMC password protection (lock/unlock) support V3 Anderson Briglia
2006-01-10  6:46 ` Pierre Ossman
2006-01-11 13:32   ` Anderson Briglia
2006-01-11 14:59     ` Russell King [this message]

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