HCI_LCD_BRIGHTNESS_BITS  132 drivers/platform/x86/toshiba_acpi.c #define HCI_LCD_BRIGHTNESS_SHIFT	(16-HCI_LCD_BRIGHTNESS_BITS)
HCI_LCD_BRIGHTNESS_BITS  133 drivers/platform/x86/toshiba_acpi.c #define HCI_LCD_BRIGHTNESS_LEVELS	(1 << HCI_LCD_BRIGHTNESS_BITS)