Moto G LEDs Custom Controls

[matmutant]

Moto G LEDs Custom Controls

Playing With Notification LED
​

Original source <<< make sure you read the blog article before commenting ....

It's always cool to know at a glance that your device is charging without the need of lighting the screen, here is how:

Requirements :

• Moto G (tested on XT1032)
• Rooted
• SU rights granted
• adb if you want to monitor all this from a computer

#include <std_disclaimer.h>
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards, BURNT LEDs,
* thermonuclear war, or you getting fired because the alarm app failed.
* YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/

in /sys/class/leds/charging/trigger we have these triggers available :

[none] bkl-trigger usb-online flash0_trigger torch_trigger mmc0 battery-charging-or-full battery-charging battery-full battery-charging-blink-full-solid bms-online

easy to change them using :

echo battery-charging >/sys/class/leds/charging/trigger

The same is available in /sys/class/leds/white/trigger, and /sys/class/leds/white/brightness allows to dim the LED, though :

• During test i was able to show that using /sys/class/leds/charging/trigger overrides any other trigger (if a notification comes, then it won't change the pattern) After extended test, it turned out that MotoG also have two LEDs
  [*]Though using /sys/class/leds/white/brightness allows to use 0~255 values to dimm the LED, and /sys/class/leds/white/trigger works; it is overridden by any incoming notification that set brightness back to 0.

edit : Current knowledg is :

• /sys/class/leds/charging/trigger → first LED, can be set to on/blinking while charging, although at full brightness.
• /sys/class/leds/white/trigger → second LED, can be dimmed, but the LED turns back off when a notification comes in.

For now, the best way is to set "first" LED (/sys/class/leds/charging/) for charging using dedicated trigger and keeping the "second" one to none and get both working together this way.
What we need is to find a way to dim the "first" LED

______________________________​

Set at boot:
WARNING : if you fail this, you may screw up your device ... (keep a backup somewhere)

1. Create a blank file and name it like 99charging_LED-blink
2. paste the following in that file :
   

   #!/system/bin/sh
   # enabling charging LED blinking while charging
   echo "battery-charging-blink-full-solid" >/sys/class/leds/charging/trigger
   echo "1" >/sys/class/leds/charging/brightness

3. mount /etc/init.d as RW
4. Paste 99charging_LED-blink there
5. set permissions as -RWXR-XR-X
6. Open terminal emulator, and type :
   

   su
   sh /etc/init.d/99charging_LED-blink

   Plug it to charger, it should start blinking ... if not, make sure everything is correctly set
7. Reboot
8. Enjoy!

______________________________​

The above has only been tested on CM11
Here is the LED related Thread for MotoE

XDA:DevDB Information
Moto G notification LEDs Custom Controls, Tool/Utility for the Moto G

Contributors
matmutant

Version Information
Status: Testing

Created 2014-11-24
Last Updated 2014-12-15

 

[matmutant]

reserved

reserved

 

[matmutant]

reserved too

....

 

[reversegear]

@matmutant where were you so far we were missing you soo much
thanks for the mod

 

[matmutant]

@matmutant where were you so far we were missing you soo much
thanks for the mod

I am always around here, though i don't post if un-needed, and i was out of idea regarding customizations :silly:

 

[sfoot13]

Working! Good job! Thank you so much for this!

EDIT: Working on CM11 and CM12 (anerik).

 

[DeHuMaNiZeD]

It would be cool if we could change the colors,and i think it would be possible..


Edit: sorry,i haven't read the blog -.-
BUT! I know you from the mini xperia's forums,i was an X8 user. I still have the old x8,and i was thinking,maybie we could make a hardware modification and swap the leds from X8 to Moto G? I have an old broken x8 at home,and the screen is broken but i think the led works. I haven't dissasembled my Moto G yet and i don't know if the led is hard sealed to the Motherboard or Speaker or camera..

 

[matmutant]

Totally useless, but still classy : you can make the screen blink using :

echo battery-charging-blink-full-solid >/sys/class/leds/lcd-backlight/trigger

:silly::silly::silly:

 

[wijiji]

I´m not sure what is this for.. :S

 

[reversegear]

I´m not sure what is this for.. :S

Read, still dont understand read again

 

[eddydc1]

Where is that second LED located?

 

[matmutant]

Where is that second LED located?

in the same hole : i was able to show it on MotoE, and it should be similar on MotoG : here is the proof

 

[matmutant]

Latest discovery :
Using "bkl-trigger" as */charging/trigger allows you to get the LED on as long as the screen ("bkl" stands for backlight)

echo bkl-trigger >/sys/class/leds/charging/trigger

i understood this after reading that https://github.com/gokulnatha/GT-I9...tation/devicetree/bindings/leds/leds-qpnp.txt
>_<

 

[matmutant]

Why not setting this at boot?

Set at boot:
WARNING : if you fail this, you may screw up your device ... (keep a backup somewhere)

1. Create a blank file and name it like 99charging_LED-blink
2. paste the following in that file :
   

   #!/system/bin/sh
   # enabling charging LED blinking while charging
   echo battery-charging-blink-full-solid >/sys/class/leds/charging/trigger
   echo 1 >/sys/class/leds/charging/brightness

3. mount /etc/init.d as RW
4. Paste 99charging_LED-blink there
5. set permissions as -RWXR-XR-X
6. Open terminal emulator, and type :
   

   su
   sh /etc/init.d/99charging_LED-blink

   Plug it to charger, it should start blinking ... if not, make sure everything is correctly set
7. Reboot
8. Enjoy!

 

[S0bes]

@matmutant thanks for interesting discovery
Can we somehow do the next thing
when notification comes leds both are active but the brighter one starts blinking?
like when you do the following commands:

echo battery-charging-blink-full-solid >/sys/class/leds/charging/trigger | echo 255 >/sys/class/leds/white/brightness

 

[matmutant]

@matmutant thanks for interesting discovery
Can we somehow do the next thing
when notification comes leds both are active but the brighter one starts blinking?
like when you do the following commands:

echo battery-charging-blink-full-solid >/sys/class/leds/charging/trigger | echo 255 >/sys/class/leds/white/brightness

Not without modifying the HAL :cyclops: (same as for brightness)
or, maybe with a tasker routine that would echo when notification comes and then revert ... but it would have a huge footprint on performances

 

[gnhuy91]

Thanks for sharing this! This thread not getting much love but i found it very interesting.
And btw, can we set any LED to on when the screen is turned on by wake gesture from custom kernel? I know it should be a kernel thing, though :/

 

[vikasb32]

Is this work in moto g2? I don't have charging folder in Leds folder.

 

[matmutant]

Is this work in moto go? I don't have charging folder in Leds folder.

Moto "Go"? which ROM and Model number?

You may try with /white/ instead, but any incoming notification will override and set brightness back to 0 (that's what i've experienced on my Falcon XT1032, on a Peregrine XT1039 and on a Condor XT1022)

 

[vikasb32]

Moto "Go"? which ROM and Model number?

You may try with /white/ instead, but any incoming notification will override and set brightness back to 0 (that's what i've experienced on my Falcon XT1032, on a Peregrine XT1039 and on a Condor XT1022)

Sorry moto g 2nd gen