Add comments to onewire class.

common/onewire.py

@@ -8,10 +8,13 @@
 # Website: http://www.sevensols.com
 # Last modifications: 26/4/2012
 
+# Import standard modules
 import sys
-import rr
 import time
 
+# Import specific modules
+import rr
+
 # Class to access the wishbone to onewire master module from OpenCores
 # http://opencores.org/project,sockit_owm
 
@@ -43,6 +46,7 @@ class COpenCoresOneWire:
     CDR_OVD_OFS = 16
     CDR_OVD_MSK = (0XFFFF<<16)
 
+    # Constants declaration
     WAIT_TIME_OUT = 2
     MAX_BLOCK_LEN = 160