SD slot on ThinkPad X60

[Rong-en Fan]

My ThinkPad X60 has a SD card slot. pciconf -lv shows

none7 at pci21:0:2:        class=0x080500 card=0x201d17aa chip=0x08221180
rev=0x18 hdr=0x00
    vendor   = 'Ricoh Company, Ltd.'
    device   = 'SD Bus Host Adapter'
    class    = base peripheral

How to use this slot to read SD cards? In ThinkPad X31, the CF slot is
simulated as an ata drive, so I have adX for the CF card. It seems the
SD slot here works differently.

Any ideas?

Regards,
Rong-En Fan