Ricoh R5C843

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Ricoh 4-in-1 Card Reader, PC Card and FireWire adapter

This is a single chip, offering six PCI functions : PC Card bridge, SD, MS, MSPro, xD and FireWire controller


  • Chipset: 5c843
  • Interface: PCI Express
  • Functions:
    • PC-Card : PCI 1180:0476
    • FireWire (IEEE 1394) : 1180:0832
    • 4-in-1 card host : PCI 1180:0822
      • MMC Host : PCI 1180:0843
      • Memory Stick MS/MSPro : PCI 1180:0592
      • xD-Picture Card : PCI 1180:0852

Drivers Status

PC Card

(32bits) Card Bus tested, ok. (16bits) PCMCIA not tested.

FireWire (IEEE 1394)

Modules ohci1394, ieee1394 and eth1394 modules loads fine, eth1394 detected as eth1'... but not tested.

SD Card reader

Worked out-of-the-box using Kubuntu 7.07 (kernel 2.6.20)

Memory Stick Card reader

Not tested.

xD Picture Card reader

Not tested.

Links & ressources

  • Ricoh Product Sheet [1]

ThinkPads this chip may be found in