From: "Christian Löhle" <CLoehle@hyperstone.com>
To: Avri Altman <Avri.Altman@wdc.com>, Ulf Hansson <ulf.hansson@linaro.org>
Cc: "linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"hch@infradead.org" <hch@infradead.org>
Subject: Re: [PATCH] mmc: block: Differentiate busy and non-TRAN state
Date: Wed, 7 Jul 2021 14:42:57 +0000 [thread overview]
Message-ID: <CWXP265MB268016982B4DEE728E60AC45C41A9@CWXP265MB2680.GBRP265.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <DM6PR04MB65751AF67891F655ABBAA7C6FC1A9@DM6PR04MB6575.namprd04.prod.outlook.com>
>> CMD16 - CMD42 Set PW - (CMD16)* - CMD42 Unlock Force Erase - (CMD42
>> Set PW)+
>> * May be omitted if you craft the CMD42 carefully (i.e. equal data size)
>> + is pretty much irrelevant, can be replaced with anything that is illegal in
>> PROG.
>Oh, OK. Interesting.
>This functionality is missing in mmc-utils.
>While at it, I encourage you to consider adding it.
>
>Thanks,
>Avri
That is true and I have thought about it. Unfortunately a locked card currently will not initalize, so not be open to the ioctl interface.
So in fear of doing more harm than good I would first change that.
(One thing is reading of SCR is required by linux-mmc but locked cards must not respond to it).
Something I'm working on on the side but don't expect anything very soon.
Kind Regards,
Christian
>
> >Again, can you share the sequence of the commands you are using?
> >
> >Thanks,
> >Avri
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Hyperstone GmbH | Line-Eid-Strasse 3 | 78467 Konstanz
Managing Directors: Dr. Jan Peter Berns.
Commercial register of local courts: Freiburg HRB381782
prev parent reply other threads:[~2021-07-07 14:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-01 9:43 [PATCH] mmc: block: Differentiate busy and non-TRAN state Christian Löhle
2021-07-02 7:43 ` Christoph Hellwig
2021-07-06 8:20 ` Christian Löhle
2021-07-06 8:40 ` Ulf Hansson
2021-07-06 9:09 ` Christian Löhle
2021-07-06 9:34 ` Ulf Hansson
2021-07-07 6:49 ` Avri Altman
2021-07-07 8:27 ` [PATCHv2] mmc: block: Differentiate busy and PROG state Christian Löhle
2021-07-07 11:57 ` Ulf Hansson
2021-07-07 14:36 ` Christian Löhle
2021-08-09 15:16 ` Ulf Hansson
2021-07-07 9:01 ` [PATCH] mmc: block: Differentiate busy and non-TRAN state Christian Löhle
2021-07-07 10:16 ` Avri Altman
2021-07-07 14:42 ` Christian Löhle [this message]
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