--- a/thermferm/thermferm.h	Thu Aug 14 22:02:33 2014 +0200
+++ b/thermferm/thermferm.h	Thu Aug 14 22:43:41 2014 +0200
@@ -45,6 +45,19 @@
 #include <lcd.h>
 
 
+/*
+ * Thread locks
+ */
+#define	LOCK_DEVICES		0
+#define	LOCK_UNITS		1
+#define	LOCK_SPARE1		2
+#define	LOCK_SPARE2		3
+
+
+
+/*
+ * Frontpanel menu numbers
+ */
 #define MENU_NONE       	0
 #define MENU_TOP_DEFAULT       	1
 #define	MENU_TOP_UNITS		2