RBTN_UNKNOWN       40 drivers/platform/x86/dell-rbtn.c 		return RBTN_UNKNOWN;
RBTN_UNKNOWN       50 drivers/platform/x86/dell-rbtn.c 		return RBTN_UNKNOWN;
RBTN_UNKNOWN      393 drivers/platform/x86/dell-rbtn.c 	if (type == RBTN_UNKNOWN) {