This is the PCI device i changed below with the setpci command
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
setpci -s '03:01.0' 0xCA=0x57 #enables you to write to the device
setpci -s '03:01.0' 0xCB=0x02 #set register to disable MMC
setpci -s '03:01.0' 0xCA=0x00 #disables write to device
I also followed the above blog directions from http:// intr.overt. org/blog/ ?p=59
They worked fro a Dell Inspiron 6400.
This is the PCI device i changed below with the setpci command
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
setpci -s '03:01.0' 0xCA=0x57 #enables you to write to the device
setpci -s '03:01.0' 0xCB=0x02 #set register to disable MMC
setpci -s '03:01.0' 0xCA=0x00 #disables write to device
Now I can read and write MMC cards.