Comment 141 for bug 202490

Maxim, thank you for all your work and your attention to this thread and the
people waiting for this feature.

On Thu, Jun 3, 2010 at 6:13 PM, Maxim Levitsky <email address hidden>wrote:

> Due to unexpected turn of events (sometimes it pays to ask a question) I
> was told that mmc controller that ricoh-mmc disables in fact is almost
> standard sdhci controller.
>
> Therefore I patched the sdhci kernel driver and now it binds to both
> sdhci and mmc devices and therefore allows you to use sd,sdhi,mmc and xD
> cards at same time.
>
> The driver modified to compile under 10.4 kernel is attached.
>
> To use first unload the ricoh-mmc (if you didn't already)
>
> $ sudo modprobe -r ricoh_mmc
>
> To make this permanent blacklist it (if you didn't already)
> to do so:
>
> $ echo ricoh_mmc | sudo tee /etc/modprobe.d/blacklist_ricoh_mmc.conf
>
> Now compile & install:
>
> $ make
> $ sudo make install
>
> Unload current driver:
> $ modprobe -r sdhci_pci
> $ modprobe -r sdhci
>
>
> assure that new driver is seen
> to do so ensure that you see the 'extra':
>
> $ modinfo sdhci-pci | grep filename
> filename: /lib/modules/2.6.32-18-generic/extra/sdhci-pci.ko
>
>
> Now load patched driver: (on next boot it will be loaded automaticly)
> $ modprobe -r sdhci_pci
> $ modprobe -r sdhci
>
>
> note that due to bug (you probably seen it) don't try to suspend the system
> while sd/sdhc/mmc card is in slot
> This just hands the system
> I know the cause, but fix is far from trivial.
> (Its not my fault)
>
>
> ** Attachment added: "mmc-sd-sdhci.tar.gz"
> http://launchpadlibrarian.net/49613807/mmc-sd-sdhci.tar.gz
>
> --
> [Feature Request] Provide a driver for Ricoh R5C822 xD card reader
> https://bugs.launchpad.net/bugs/202490
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in The Dell Project: Won't Fix
> Status in “linux” package in Ubuntu: Confirmed
> Status in “linux” package in Debian: Confirmed
>
> Bug description:
> *** NOTE: this is a *wishlist* item - a request for new functionality. At
> present, and perhaps forever, xD support on linux is extremely limited.
> This issue is a request to have xD support added for a specific, and
> somewhat popular, chipset. Please do not add "me, too" items. We know that
> it doesn't work. If you want, please add yourself as a subscriber, and
> click on link to indicate that "This bug effects me, too" In the meantime,
> there are two xD readers known to work with linux, so if you simply must
> have xD support, those would be your options.
>
> Now there is an xD driver for this chip.
> Supports kernel from 3.6.31.
> (http://launchpadlibrarian.net/44373795/ricoh_xd_3.tar.bz2)
>
> To install please do ./make && sudo make install && sudo make load
>
> Note that this package installs several kernel modules, similar to
> compat-wireless
> So, make sure that there is no conflict between existing mtd modules and
> these.
>
> *NOTE* If you use kernel lower that 2.6.34, please be sure to unload the
> ricoh-mmc driver.
> It conflicts with this driver.
> This does meant that on this kernel you *can't* use both xD and MMC cards
> To be sure that ricoh-mmc is not loaded, you should see the following
> output:
>
> 03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
>
> and NOT:
>
> 03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev FF)
>
> ------------------------------------------------
>
> On multi-format card readers such as:
>
> > lspci | grep Ricoh
> 03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev
> 05)
> 03:01.1 Generic system peripheral [0805]: 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)
> 03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host
> Adapter (rev 12)
> 03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
>
> SD and MMC cards work, but Xd cards do not. This appears to be due to a
> lack of driver support for the Xd reader.
>
> There is no need to comment confirming this issue on more laptops. Every
> laptop with a similar type of reader will be affected.
>
>
>
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>