Sorry in advance for bad english and also for a noob question.
I have a problem with brightness on my tablet Supra M94BG. There is a system brightness slider, the range is 0% -- 100% (as usual), and the problem is that 0% corresponds
0 value in
/sys/devices/platform/leds-mt65xx/leds/lcd-backlight/brightness , and 100% corresponds
90 value, and not
255, as expected. Manual setting of value in
255 gives really maximum level of brightness (as desired), but this value resets to
90 after screen is locked.
How can I correct the mapping?