I want to use my buttons in owrt, so i edited to file /etc/hotplug2-init.rules:

...
         SUBSYSTEM ~~ button {
                 exec kill -USR1 1 ;
         }

to

...
         SUBSYSTEM ~~ button {
                 exec /usr/bin/toggle.sh;
         }

the file /usr/bin/toggle.sh contains this:

#!/bin/sh

tmpfile="/tmp/toggletmp"

if [ -f $tmpfile ] ; then
    echo 1 > /proc/gpio/2_dir
    echo 1 > /proc/gpio/2_out
    rm $tmpfile

else
    echo 1 > /proc/gpio/2_dir
    echo 0 > /proc/gpio/2_out
    echo 1 > $tmpfile

this means this script toggles only the wlan led on my atheros router. The problem is, while the button is pressed the script gets called all the time. I would prefer a message when the key is pressed and when the key is released. Is there a variable available i could use?

michu

complete bullshit... I found an entry in the wiki and documented it also here: http://www.neophob.com/serendipity/inde … event.html.

what is the purpose of the variable SEEN, as in the atheros build this variable is allways zero...

(Last edited by michu on 30 Nov 2007, 02:28)

BTW, I don't know about Atheros boards, but for Broadcom (like Linksys) there is specific support for this. Just create a script /etc/hotplug.d/button/[button-name] and it will be run when the button is pressed, and again when it's released (test $ACTION to see which)

Of course you have to work out the names of the available buttons, but you can see their names in https://svn.openwrt.org/openwrt/trunk/p … src/diag.c

Unfortunately it doesn't properly support slide switches like the 'bridge' switch on the WHR-G54S, as which polarity you get depends on where the switch was when the unit powered up :-(

yes i know that, i also checked the file /target/linux/atheros/files/arch/mips/atheros/reset.c which handles the button stuff for atheros... those files sets an env variable called SEEN and I dont really know what for this variable is... I created a custom version of reset to trace it a bit and saw that the variables

        /* copy keys to our continuous event payload buffer */
        add_msg(skb, "HOME=/");
        add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin");
        add_msg(skb, "SUBSYSTEM=button");
        add_msg(skb, "BUTTON=reset");
        add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released"));
        sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ);

jiffies  and seen are negative. I checked those variables with the broadcom build, there they are defined as unsigned long where those variables in the ateros build are defined as int... Ill check this