[ROOT] Fastest Flashlight (com.frapeti.fastestflashlight) on Google Play
[ROOT APP]This is a smart torch app tought, which is thought to increase the speed of the LED flash to light up in certains conditions when you need to get some light fastly, you can add the lockscreen widget and home screen widget too.This app writes directly to the kernel sysfs, so it will try to auto-detect the flash LED device, else, if you are sure that the sysfs file is there and not detected, you can contact me at any time to provide support for your phone.