I've recieved a few emails asking if I could get this hack included into the official releases, though I've no idea who I even need to talk with to find out about this. So I figure the best bet is just to post in here and hopefully someone who may be interested can pick it up and get it included.

This is a modified version of the source for diag.o (originally from WhiteRussian RC2) to make a /proc/sys/ciscobutton, identical to the /proc/sys/reset one. This also adds a 0x02 and 0x08 to /proc/sys/diag to turn the cisco button orange and/or white respectively. Sorry, don't have a .diff of this handy to provide.

Source:
http://www.intherack.com/random-stuff/diag_led.c

-Kenneth Sanislo

EDIT: Forgot to include....
If anyone wants a drop-in binary of the module to use, you can find it at:
http://www.intherack.com/random-stuff/diag.o

(Last edited by CodePoet82 on 28 Dec 2005, 22:26)

Any feedback on if this got included or not?

I could definitely use this function for a current project.

I'd like to see extra buttons/leds supported as well.

For example WRT54G3G uses following GPIOs:

Power and DMZ are same as on other Linksys WRT54G series devices.
3G/UMTS Connect/Disconnect button is same as Cisco-button on others.

There's two-color 3G/UMTS led and one GPIO that controls if it's blinking or not. See below for complete list.
gpio enable  1    POWER LED ON
gpio disable 1    POWER LED FLASH
gpio enable  2    3G/UMTS LED ON (GREEN)
gpio disable 2    3G/UMTS LED OFF
gpio enable  3    3G/UMTS LED ON (BLUE, overrides green)
gpio disable 3    3G/UMTS LED OFF
gpio enable  5    3G/UMTS BLINK ON
gpio disable 5    3G/UMTS BLINK OFF
gpio enable  7    DMZ OFF
gpio disable 7    DMZ ON

To make adding support easier here's nvram variables that could be perhaps used to detect when diag.o is loaded on WRT54G3G:
boardflags2=0
boardflags=0x0318
boardnum=42
boardrev=0x10
boardtype=0x0101

Also presence of PCI device 104c:ac56 (TI Cardbus controller) quite clear sign that it's WRT54G3G.

I just loaded "nbd" firmware from 2/19/2006, onto my WRTSL54GS

I see /proc/sys/reset and /proc/sys/diag

That 3G unit looks quite interesting. Removable antenna, sweet! Too bad it has to sacrifice USB port, and not available in US

(Last edited by vincentfox on 2 Mar 2006, 21:13)