2440 development board in the majority of BSP in SMDK2440 \ DRIVERS \ backlite directory generally backlight driver. Add the following in the registry function, the boot print when really " !!!!!!!!!!!! BACKLIGHT ON !!!!!!!!!!!!, If there is no operation after about 1 minute can also print it !!!!!!!!!!!! BACKLIGHT OFF !!!!!!!!!!!!。 Print (" !!!!!!!!!!!! BACKLIGHT OFF!! !!!!!!!!!! after, even if there are triggering events (click on the touch screen, or move the mouse) will not print " !!!!!!!!!!!! BACKLIGHT ON !!!!! In fact, this drive !!!!!!!。 general is correct, only when the keyboard and mouse or touch screen input when gwes Send " PowerManager/ActivityTimer/UserActivity" event, rather than the original drive in the " (" UserInputEvent " ) " modified After the source is as follows (SMDK2440 \ DRIVERS \ backlite directory bak_hw.cpp files).

backlite.def
bak_hw.cpp
bak_hw.h
bak_io.cpp
Build.log
MAKEFILE
obj
...\ARMV4I
...\......\debug
...\......\.....\bak_hw.obj
...\......\.....\bak_io.obj
...\......\.....\_objects.mac
...\......\retail
...\......\......\bak_hw.obj
...\......\......\bak_io.obj
...\......\......\_objects.mac
sources
步骤.txt

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