linux-kernel - Re: 2.6.24 not recognizing 2G MMC card?

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Date:	Thu, 22 May 2008 19:10:22 +0100
From:	"Tom Spink" <tspink@...il.com>
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	drzeus-mmc@...eus.cx, linux-kernel@...r.kernel.org
Subject: Re: 2.6.24 not recognizing 2G MMC card?

2008/5/22 J. Bruce Fields <bfields@...ldses.org>:
> On Wed, May 21, 2008 at 07:01:10PM +0100, Tom Spink wrote:
>> 2008/5/21 J. Bruce Fields <bfields@...ldses.org>:
>> > Please forgive a somewhat naive question--I'm not sure how to go about
>> > debugging this kind of thing:
>> >
>> > I have a Dell 1420n with card readers reported by lspci as:
>> >
>> > 03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
>> > 03:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12)
>> >
>> > I have a 512MB MicroSD card which seems to be recognized fine, but a 2GB
>> > MMC card is not.
>> >
>> > I'm using a stock Ubuntu 8.04 kernel, which reports itself as
>> > 2.6.24-16-generic.
>> >
>> > Skimming through commits to drivers/mmc,
>> > 5ae70296c85f96a9969891d9de3410ebdf210b71 "mmc: Disabler for Ricoh MMC
>> > controller", looks relevant, but seems to be included in 2.6.24.
>> >
>> > Anything I should try?  Thanks in advance for any suggestions.
>> >
>> > --b.
>>
>> Hi,
>>
>> What does: lsmod | grep ricoh, give you?  Anything?
>
> root@pig:/home/bfields# lsmod | grep ricoh
> ricoh_mmc               4352  0
>
> --b.
>

Hi,

So does the MMC card work on other card readers, i.e. it's not
damaged?  When you plug the card into the reader, can you check dmesg
and see if there's any relevant information in there, and post it
here?

Thanks,
-- 
Tom Spink
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