SD/MMC mod
From DD-WRT Wiki
SD/MMC Mod for the Buffalo WHR-G54S
This is a work in progress...
1. Introduction
This tutorial guides you through adding a SD/MMC interface to the Buffalo WHR-G54S router and gives some general information and tips that help you to do the same with other routers. Applying this modification to the Buffalo WHR-HP-G54S will be almost identical than what is described here.
2. How to open your router
Check this Wiki How to open the Buffalo WHR-HP-G54 to see how to open your router without breaking it.
3. Finding suitable IO points
Multimeter, ground reference. while true; do gpio disable 2; sleep 1; gpio enable 2; sleep 1; done Use negative side of LED (+ side is marked).
Checking the power supply.
Required tools: Soldering iron with a very fine tip. Some pieces of thin wire (diameters approx. 0.25 mm) A SD card adapter. A SD or MMC card.
Image:WHR G54S SD MOD-Management Screen.png