pmac_backlight_key   24 arch/powerpc/include/asm/backlight.h extern void pmac_backlight_key(int direction);
pmac_backlight_key   27 arch/powerpc/include/asm/backlight.h 	pmac_backlight_key(0);
pmac_backlight_key   31 arch/powerpc/include/asm/backlight.h 	pmac_backlight_key(1);