Linksys WRT54G-TM SD/MMC mod
From DD-WRT Wiki
WIP This mod is a Work In Progress and should be completed in the near future.
Forum Reference Link: http://dd-wrt.com/phpBB2/viewtopic.php?t=40464
Linksys WRT54G-TM SD/MMC mod (may also work on some WRT54GL models)