Comment 36 for bug 111089

It seems that there is now a driver which is supposed to do what the setpci commands mentioned above do. It is called ricoh-mmc.

You can check if it's working via "dmesg | grep ricoh-mmc".

In my case unfortunately it does NOT work:
[ 34.433416] ricoh-mmc: Ricoh MMC Controller disabling driver
[ 34.433421] ricoh-mmc: Copyright(c) Philip Langdale
[ 34.523742] ricoh-mmc: Ricoh MMC controller found at 0000:04:09.3 [1180:0843] (rev 0)
[ 34.523748] ricoh-mmc: Main firewire function not found. Cannot disable controller.

This is the reason why the MMC cards are not recognized by my card reader.

Any way to find the reason for the failure?