diff --git a/viscaoveriplib/camera.py b/viscaoveriplib/camera.py
index 194a476e094d60807a1f8a5197dcc47f59f7bc0c..f21257df4c3dea976923983c69fb704246b3e667 100644
--- a/viscaoveriplib/camera.py
+++ b/viscaoveriplib/camera.py
@@ -42,9 +42,9 @@ class Camera:
 
     def payload2header(self, payload):
         """
-        take the payload, calculate the payload lenght and add the sequence number
+        take the payload, calculate the payload length and add the sequence number
         :param payload:
-        :return: header = payloadlenght + seq_num
+        :return: header without prefix = payloadlength + seq_num
         """
 
         lenght = hex(len(payload.replace(' ', '')))
diff --git a/viscaoveriplib/commands_library.py b/viscaoveriplib/commands_library.py
index 88d3e9b61133c36b1995c7b875532a2d2c30b073..ef45ced57a816e9c32f311fb5c5c4924b57690d8 100644
--- a/viscaoveriplib/commands_library.py
+++ b/viscaoveriplib/commands_library.py
@@ -62,7 +62,55 @@ class Camera:
 
     #TODO
 
-    #PAS FINI A PARTIR D'ICI :
+
+    #CAM_WB : White Balance
+    def wb_auto(self): #Normal Auto
+        8x 01 04 35 00 FF
+
+    def wb_indoor(self): #Indoor Mode
+        8x 01 04 35 01 FF
+
+    def wb_outdoor(self): #Outdoor Mode
+        8x 01 04 35 02 FF
+
+    def wb_one_push(self): #One push white balance
+        8x 01 04 35 03 FF
+
+    def wb_auto_tracing(self): #Auto tracing white balance
+        8x 01 04 35 04 FF
+
+    def wb_manual(self): #Manual Control
+        8x 01 04 35 05 FF
+
+    def wb_one_push_trigger(self): #One Push WB trigger
+        8x 01 04 10 05 FF
+
+    #TOTERMINER
+
+    #CAM_RGain and BGain
+
+    #TODO
+
+    #CAM_AE : Exposure settings
+
+    def ae_full_auto(self): #Automatic Exposure mode
+        8x 01 04 39 00 FF
+
+    def ae_manual(self): #Manual Control mode
+        8x 01 04 39 03 FF
+
+    def ae_shutter_priority(self): #Shutter priority exposure mode
+        8x 01 04 39 0A FF
+
+    def ae_iris_priority(self): #Iris priority exposure mode
+        8x 01 04 39 0B FF
+
+    def ae_bright(self): # Bright mode (manual control)
+        8x 01 04 39 0D FF
+
+    #CAM_Slowshutter :
+
+    #PAS RELU A PARTIR D'ICI :
     def move_to_absolute_position(self, YCoordinates, ZCoordinates, VV=None, WW=None):
         """
         command of absolute position mouvement