Hi folks,
After several request on this hack i finally put on Wiki some information about SD/MMC mod for Buffalo WHR-G54S, photos are poor but i hope you can understand the documentation without troubles, hack also includes the serial port mod.
Finally i've put all together inside its original case, here's URL:
http://wiki.openwrt.org/OpenWrtDocs/Har … D-MMC.hack
Hope it helps as doc for beginners
Andrea (Ben) Benini