entered: ls -R /sys/bus/sdio/devices/
returned: /sys/bus/sdio/devices/: mmc1:0001:1

entered: cat /sys/bus/sdio/devices/mmc1:0001:1/data
returned: cat: '/sys/bus/sdio/devices/mmc1:0001:1/data': No such file or directory

I'm trying to avoid a pile of USB devices beside my computer - or I might as well have got a bigger computer, right? In time there has to be better 2-1 tablet PC support, because It's compact, faster, and (nearly) easier to do programming, and essay type work; with all the 2-1 benefits.