linux-kernel - Re: Is the Ricoh R5C822 documentation available?

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Message-Id: <200812090025.37114.elendil@planet.nl>
Date:	Tue, 9 Dec 2008 00:25:35 +0100
From:	Frans Pop <elendil@...net.nl>
To:	david@...deman.nu
Cc:	linux-kernel@...r.kernel.org, drzeus-list@...eus.cx,
	linux-kernel@...r.kernel.org, tbm@...ius.com
Subject: Re: Is the Ricoh R5C822 documentation available?

Hi David,

> The Ricoh R5C822 card reader in my laptop includes a smart card reader
> (http://www.ricoh.com/LSI/product_pcif/pcc/5c821/index.html) but it
> doesn't seem supported by the kernel.

Weird. My laptop has the same device and I've successfully installed 
Debian to it [1]...

02:06.2 SD Host controller [0805]: Ricoh Co Ltd R5C822 
SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 21)
        Kernel driver in use: sdhci-pci
        Kernel modules: sdhci-pci
02:06.3 System peripheral [0880]: Ricoh Co Ltd R5C843 MMC Host Controller 
[1180:0843] (rev ff)
        Kernel driver in use: ricoh-mmc
        Kernel modules: ricoh_mmc

The function of the ricoh_mmc module is to disable the last (proprietary) 
controller in favor of the first (generic) one.

Cheers,
FJP

[1] Installing to SD/MMC card is supported as of D-I Lenny RC1 for i386 
and amd64.
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