[MOD]Keyboard backlight toggle

---

I have tried to use some apps to turn off the backlight permanently but not work for my O3D.

So I tried an odd way to do it.
I tried to forced brightness value to 0 by using

echo 0 > /sys/class/leds/keyboard-backlight/brightness
chmod 444 /sys/class/leds/keyboard-backlight/brightness

Running this script should permanently kill off your keyboard LED. you can use

echo 1 > /sys/class/leds/keyboard-backlight/brightness
chmod 444 /sys/class/leds/keyboard-backlight/brightness

to turn on the LED or use:

chmod 664 /sys/class/leds/keyboard-backlight/brightness

to restore system automatic operation


I have written a simple apk file for u who dont have gscript.
the app just run the script above, you can always run the script on gscript or any terminal emulator you want (needs su)

Bug:
This runs perfect on my O3D now with Acurarom, but it sill have some problem with CM7-SF ROMs. Anybody knows what is the problem here?

For those who found the script useless, you might try to add two lines after turning on/off

chown 0 /sys/class/leds/keyboard-backlight/brightness
chgrp 0 /sys/class/leds/keyboard-backlight/brightness

and make sure add these two lines before the restore script

chown 1000 /sys/class/leds/keyboard-backlight/brightness
chgrp 1001 /sys/class/leds/keyboard-backlight/brightness

These two codes may prevent changing the led setting back to "rw" from some other apk with root access

HElP

---

I have the same problem but the question is how cpmment scripts with which tool is my first time I do this kind of things. Sorry for my english

Excuse me, where I post these scripts in O3D?

I have made an .apk file for anybody have trouble running the script

Thanks a lot for that apk. I've been looking for a way to turn the buttons backlight off n this works perfectly on 2.3.5. Thanks again!

Thanks for APK!

Is there any option to set the backlight on permanently only when the screen is on, and to dim it a bit?

Nice app btw.

Originally Posted by IFLPI

Is there any option to set the backlight on permanently only when the screen is on, and to dim it a bit?

Nice app btw.

+1 for that

Sent from my LG-P920 using xda premium

Originally Posted by IFLPI

Is there any option to set the backlight on permanently only when the screen is on, and to dim it a bit?

Nice app btw.

I knew a way to do that but it won't be as easy as this one.
And for dimming the max backlight might require some mod in the boot.img which i am not familiar.
I will see what I can do

After all, this app only works with some devices on some ROMs. There's an app in the market that can do the job. If your devices made no response to those apps, you can try this method. (which is fairly unconventional)

would it be possible to make this script run at boot? (Such as init.d scripts), i've tried directly adding it to init.rc but it doesn't seem to work (System rewrites it the on boot, even without write permissions).


(Not with a script app such as Rom Toolbox/Script manager)