diff --git a/media/omx/1.0/IGraphicBufferSource.hal b/media/omx/1.0/IGraphicBufferSource.hal
index a5b5813..9b3ab0c 100644
--- a/media/omx/1.0/IGraphicBufferSource.hal
+++ b/media/omx/1.0/IGraphicBufferSource.hal
@@ -29,32 +29,23 @@
  */
 interface IGraphicBufferSource {
 
-    configure(IOmxNode omxNode, Dataspace dataspace)
-        generates (Status status);
+    configure(IOmxNode omxNode, Dataspace dataspace);
 
-    setSuspend(bool suspend)
-        generates (Status status);
+    setSuspend(bool suspend);
 
-    setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs)
-        generates (Status status);
+    setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs);
 
-    setMaxFps(float maxFps)
-        generates (Status status);
+    setMaxFps(float maxFps);
 
-    setTimeLapseConfig(int64_t timePerFrameUs, int64_t timePerCaptureUs)
-        generates (Status status);
+    setTimeLapseConfig(int64_t timePerFrameUs, int64_t timePerCaptureUs);
 
-    setStartTimeUs(int64_t startTimeUs)
-        generates (Status status);
+    setStartTimeUs(int64_t startTimeUs);
 
-    setColorAspects(ColorAspects aspects)
-        generates (Status status);
+    setColorAspects(ColorAspects aspects);
 
-    setTimeOffsetUs(int64_t timeOffsetUs)
-        generates (Status status);
+    setTimeOffsetUs(int64_t timeOffsetUs);
 
-    signalEndOfInputStream()
-        generates (Status status);
+    signalEndOfInputStream();
 
 };
 
diff --git a/media/omx/1.0/IOmxNode.hal b/media/omx/1.0/IOmxNode.hal
index 9483be4..5945b44 100644
--- a/media/omx/1.0/IOmxNode.hal
+++ b/media/omx/1.0/IOmxNode.hal
@@ -46,14 +46,14 @@
      * Invoke a command on the node.
      *
      * @param[in] cmd indicates the type of the command.
-     * @param[in] info holds information about the command.
+     * @param[in] param is a parameter for the command.
      * @param[out] status will be the status of the call.
      *
      * @see OMX_SendCommand() in the OpenMax IL standard.
      */
     sendCommand(
             uint32_t cmd,
-            Bytes info // TODO: describe structure better or point at standard
+            int32_t param
         ) generates (
             Status status
         );