How to set Nintendo DS Lite backlight brightness!! (This is cool)

I figured out how to set the brightness level of the DSLite backlight!

Using libnds, use the following arm7 code.

To set the brightness:
writePowerManagement((4), level); //level = {0-3}

To read the brightness:
readPowerManagement((4)) - 64; //returns {0-3}

Simple isn’t it?
-Lick