I dug out an old wrt54g-tm and decided to install OpenWRT instead of upgrading the DD-WRT that was on it. This went smoothly except for what appears to be abnormal LED behavior when wifi is turned on. When it's on, the Cisco button lights up orange (okay) and the power LED starts flashing at 5 Hz. If I turn it off, the Cisco button goes dark and the power LED is steady again. Wifi appears to be functioning normally though.
As far as I can tell, the power LED is supposed to flash like that only when there's some sort of problem, for instance something scribbled all over the filesystem. What's actually going on? I'd rather not have the power LED flash like this.
I selected bcm47xx:green:power, default state checked, trigger none. No change in behavior. I figure the trigger option is key, but no matter what I put in there, nothing will stop the blinking when wifi is active.
I found the path for the LED trigger file, but not the local start up script. I thought of /etc/rc.local, but that doesn't have a sleep 3 line. Some fiddling around with find yielded nothing.
Those devices are no longer supported (the 32MB RAM is still a limitation despite you having one of the unique ones manufactured with 8MB of flash, as do I). Most are over 16 years old.
That LED behavior is known, I cannot recall how many years that has occurred. It's been since after support for the series ended
Due to closed source drivers being unavailable, the WiFi will provide poor performance; and could "jam" your other APs and those of your neighbors
You cannot setup what's called a "WiFi bridge" in DD-WRT with the WRT54G devices.