brightness_toggle 1979 drivers/platform/x86/thinkpad_acpi.c u16 brightness_toggle:1; brightness_toggle 2447 drivers/platform/x86/thinkpad_acpi.c n->brightness_toggle = brightness_toggle 2568 drivers/platform/x86/thinkpad_acpi.c } else if (oldn->brightness_toggle != newn->brightness_toggle) {