AM62 Backlight

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This page is using the default release RELEASE_SUMO_V1.0_DART-MX8M.
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DART-MX8M Backlight
# cd /sys/class/backlight/backlight
# cat max_brightness
# cat brightness
# echo 0 > brightness 
# echo 50 > brightness
# echo 100 > brightness
# echo 80 > brightness