From: Jaehoon Chung <jh80.chung@samsung.com>
To: Chris Ball <cjb@laptop.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>,
Giuseppe CAVALLARO <peppe.cavallaro@st.com>,
linux-mmc@vger.kernel.org, sebras@gmail.com,
linus.walleij@linaro.org, youssef.triki@st.com,
Johan RUDHOLM <johan.rudholm@stericsson.com>,
Kyungmin Park <kyungmin.park@samsung.com>
Subject: Re: [PATCH] mmc-utils: improve the parsing of the EXT_CSD registers
Date: Tue, 21 Feb 2012 13:56:10 +0900 [thread overview]
Message-ID: <4F4323EA.6050205@samsung.com> (raw)
In-Reply-To: <m24nuk6bfw.fsf@bob.laptop.org>
On 02/21/2012 01:46 PM, Chris Ball wrote:
> Hi,
>
> On Mon, Feb 20 2012, Jaehoon Chung wrote:
>> Write protect is only supported the "power-on".
>> If there is no problem to support "permanent", i will send the patch.
>> Is any problem to support "permanent"?
>
> I think I'd rather not -- we could add a comment to the code that
> explains that setting the EXT_CSD_BOOT_WP_B_PERM_WP_EN bit instead of
> EXT_CSD_BOOT_WP_B_PWR_WP_EN is how to achieve this, but I don't think
> we need to do more than that for such a rare and dangerous use case.
Ok..It's dangerous case..I see. :)
And I added the output message from eMMC4.5 device in the previous mail.
Best Regards,
Jaehoon Chung
>
> Thanks,
>
> - Chris.
prev parent reply other threads:[~2012-02-21 4:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-20 8:45 [PATCH] mmc-utils: improve the parsing of the EXT_CSD registers Giuseppe CAVALLARO
2012-02-20 17:43 ` Chris Ball
2012-02-21 4:43 ` Jaehoon Chung
2012-02-21 4:46 ` Chris Ball
2012-02-21 4:56 ` Jaehoon Chung [this message]
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