From: Chris Ball <cjb@laptop.org>
To: Adrian Hunter <adrian.hunter@nokia.com>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>,
"Andrew Morton" <akpm@linux-foundation.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] [PATCH 1/2] mmc: split mmc_sd_init_card()
Date: Thu, 03 Jun 2010 13:21:23 -0400 [thread overview]
Message-ID: <m3hblk8224.fsf@pullcord.laptop.org> (raw)
In-Reply-To: <4C0774A8.2030704@nokia.com> (Adrian Hunter's message of "Thu, 03 Jun 2010 12:23:52 +0300")
Hi,
> That is a bit vague. An SD card is a memory. An SDIO "card" is
> an I/O connection made using the same physical interface as an SD
> card and a very similar protocal to SD cards (at least with
> respect to reading and writing). I do not understand how a card
> can be SD and SDIO. Are you sure you are not talking about a
> controller that supports SD and SDIO? A lot of controllers do
> that.
Adrian, I presume we're talking about something like:
http://www.arasan.com/products/sd/SD-Combo-Flyer.pdf
Michał, could you let us know which SD-combo device(s) in particular
you've been working with?
- Chris.
--
Chris Ball <cjb@laptop.org>
One Laptop Per Child
next prev parent reply other threads:[~2010-06-03 17:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-25 16:10 [RFC] [PATCH 1/2] mmc: split mmc_sd_init_card() Michał Mirosław
2010-05-25 16:10 ` [RFC] [PATCH 2/2] mmc: implement SD-combo (IO+mem) support Michał Mirosław
2010-05-28 21:51 ` Andrew Morton
2010-05-28 21:40 ` [RFC] [PATCH 1/2] mmc: split mmc_sd_init_card() Andrew Morton
2010-05-31 15:58 ` Michał Mirosław
2010-06-03 9:23 ` Adrian Hunter
2010-06-03 17:21 ` Chris Ball [this message]
2010-06-03 18:37 ` Michał Mirosław
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