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todo.md

 ## Things to fix and add in ZIO
 
-After the beta3 tag a lot happened, but there are still some things we
-want to add to the  
-code base.
-
 ### Code Changes
 
-  - Implement the bus abstraction, to split drivers and devices
-
-<!-- end list -->
-
-  - Add a binary control block in /sys to reflect current status and set
-    config
+  - Add support to write a binary control block in /sys to set a new
+    configuration 
 
 <!-- end list -->
 
@@ -46,10 +38,6 @@ http://lists.ohwr.org/sympa/arc/zio/2011-11/msg00026.html
 
 ### New Drivers
 
-  - Cleanup and publish the AD7888 driver we are using internally
-
-<!-- end list -->
-
   - Complete and publish the line discipline for uart-driven input and
     output
 
@@ -68,10 +56,6 @@ http://lists.ohwr.org/sympa/arc/zio/2011-11/msg00026.html
     structures and regenerates them as needed, to reduce overhead when
     little blocks are used.
 
-<!-- end list -->
-
-  - Write a trigger based on high-resolution timers
-
 <!-- end list -->
 
   - Write more drivers for real hardware (accelerometers, DACs and so