Config to activate Xperia Ion Lt28at
Hi, thanks for the great and so usefull contribution, I based on it and activated the Xperia Ion Lt28at sensor and it works great, I hope I will be helpfull for you too as it was for me.
Using root explorer Change this value in the file hw_config.sh located in the folder system/etc
# LMU AS3676 Configuration
dev=/sys/class/leds
Echo 1,80,255,5,16,9,16 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 1,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 6000 > $dev/button-backlight/max_current
To
# LMU AS3676 Configuration
# GAAB 19/02/2013
dev=/sys/class/leds
Echo 1,80,255,5,16,9,16 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 3,2,2,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 6000 > $dev/button-backlight/max_current
On the other hand after you activated the sensor I recommend you use the app Velis Auto Brightness
Velis Works you will find easly in Google play.
Best Regards