diff --git a/camera/device/3.5/ICameraDevice.hal b/camera/device/3.5/ICameraDevice.hal
index d9f2837..492105c 100644
--- a/camera/device/3.5/ICameraDevice.hal
+++ b/camera/device/3.5/ICameraDevice.hal
@@ -84,6 +84,9 @@
      *
      * The streamList must contain at least one output-capable stream, and may
      * not contain more than one input-capable stream.
+     * In contrast to regular stream configuration the framework does not create
+     * or initialize any actual streams. This means that Hal must not use or
+     * consider the stream "id" value.
      *
      * ------------------------------------------------------------------------
      *