ok I found out about this openwrt a few days ago, and have become mod happy ;-)

so I have located 4 GPIO's, soldered them and then modded the mmc.c accordingly, compiled and insmod'd it.  I get the following error:

mmc Hardware init
mmc Card init
mmc Card init
mmc: error in mmc_card_init (1)
mmc: error in mmc_init (-1)

I'm having a bit of trouble tracking down the cause, anyone else whos tried something similar that can lend a hand?

TIA