Linksys WRT55AG v1

Wikidevi Notes
The wireless module for 802.11a in the FCC photos is assumedly the Linksys WL-550. Pictures here depict the device with a different AR5211 based card.

Links of Interest

 * How to recover error WRT55AG

Flashing DD-WRT
After flashing with the ASUS trx file, you can change to the generic VINT mini or standard using the Administration -> Upgrade Firmware tab, but whether you do that or not the 802.11a radio will no longer function, either way.

The devs are not interested in getting both radios on this working (Linksys DID release GPL source for this one, but not for v2; only 4MB of flash memory on both), so save yourself hours of frustration and just leave the stock firmware on it. If you're interested, you could salvage the 2 mini-PCI cards (one 802.11b/g and one 802.11a) from the inside... but you have to unsolder the hold-down clips to do that. Also, the swivel/jointed rubber duck antennae are not removable so nothing to salvage there, really. Rubber feet off the bottom, I guess.

Pictures of the insides are at http://www.dd-wrt.com/phpBB2/viewtopic.php?t=24378 for what it's worth.

Pictures
PKW-WRT55AG