diff --git a/audio/common/5.0/types.hal b/audio/common/5.0/types.hal
index ffe4506..8f8a888 100644
--- a/audio/common/5.0/types.hal
+++ b/audio/common/5.0/types.hal
@@ -643,8 +643,10 @@
             int32_t device;
         } alsa;             // used for USB_*
     } address;
-    string busAddress;      // used for BUS
-    string rSubmixAddress;  // used for REMOTE_SUBMIX
+    /** Arbitrary BUS device unique address. Should not be interpreted by the framework. */
+    string busAddress;
+    /** Arbitrary REMOTE_SUBMIX device unique address. Should not be interpreted by the HAL. */
+    string rSubmixAddress;
 };
 
 /**
diff --git a/current.txt b/current.txt
index defc5a7..4aa8c1d 100644
--- a/current.txt
+++ b/current.txt
@@ -418,7 +418,7 @@
 9471b12b1c255bb530695720bc4174bd74987b75b1f820854af8944bc8c215c9 android.hardware.audio@5.0::IStreamOut
 1b0500367ed2b32a841667ac3200edf3d3a164e8004aca445ff1b085ac831e93 android.hardware.audio@5.0::IStreamOutCallback
 83e365479cc77d8717c155e1787ee668cd2ae4c557b467cf75b8e7cd53697ad8 android.hardware.audio@5.0::types
-edda213e520f387a3e367834b0772978b308a0f59b54479990aa9411aee9bcc4 android.hardware.audio.common@5.0::types
+894af04bebfe7da5b6791eefeb6eb3627da63d5efea735f16876d11d8ca4f61d android.hardware.audio.common@5.0::types
 f269297866765b95ddd1825676cc8a772f0c7c9863286df596fc302781a42ff5 android.hardware.audio.effect@5.0::IAcousticEchoCancelerEffect
 fa187b602d8939644ef708ed7627f2e3deac97899a4bda1de07f2ff126abe243 android.hardware.audio.effect@5.0::IAutomaticGainControlEffect
 e1bf864ccb8458c0da1dcc74a2e748b1dca8ac360df590591cf82d98292d7981 android.hardware.audio.effect@5.0::IBassBoostEffect