SDVO_CMD_SET_BACKLIGHT_LEVEL  564 drivers/gpu/drm/gma500/psb_intel_sdvo_regs.h #define SDVO_CMD_SET_BACKLIGHT_LEVEL			0x32
SDVO_CMD_SET_BACKLIGHT_LEVEL  575 drivers/gpu/drm/i915/display/intel_sdvo_regs.h #define SDVO_CMD_SET_BACKLIGHT_LEVEL			0x32