diff --git a/current.txt b/current.txt
index 3083947..01053a0 100644
--- a/current.txt
+++ b/current.txt
@@ -467,7 +467,7 @@
 7f460e795f5d1ed5e378935f98c6db4d39497de988aef1b4c2a4a07a6c400392 android.hardware.gnss@2.0::IAGnss
 2e5ad983734069e84a760004b32da0d09e4170c05380abe27e6eb80e4aa70d5a android.hardware.gnss@2.0::IAGnssCallback
 1f4ac068a88a72360280d94a7f6fd7c63813c1eea4891a0eb01394d3e7e775f2 android.hardware.gnss@2.0::IAGnssRil
-4deafcdcffa2d002119e7f58810b767a84666e76475aae68e757ec2845d9756d android.hardware.gnss@2.0::IGnss
+f5605f48c2fb9f231615dd932bf730ae9540f4f98b5b7ae2b269975f452f6d73 android.hardware.gnss@2.0::IGnss
 db6bdf6dfc5edf6c85d2944976db899227abb51079c893874353c322342c50b6 android.hardware.gnss@2.0::IGnssBatching
 1f89392f1ebb693d8fa6f50324b1635fc79fab246d31900e63998e1b0e17511c android.hardware.gnss@2.0::IGnssBatchingCallback
 64232037109a5e5f53ab0377e755ec494ae93fcb5279e6eea71dec2e7ac6fbfc android.hardware.gnss@2.0::IGnssCallback
diff --git a/gnss/2.0/IGnss.hal b/gnss/2.0/IGnss.hal
index f19f8d0..9935bf9 100644
--- a/gnss/2.0/IGnss.hal
+++ b/gnss/2.0/IGnss.hal
@@ -36,13 +36,18 @@
  * the interface @1.0::IGnssNi.hal and @1.0::IGnssNiCallback.hal are deprecated in this version
  * and are not supported by the framework. The GNSS HAL implementation of this interface
  * must return nullptr for the following @1.0::IGnss method.
- *      getExtensionGnssNi() generates (IGnssNi gnssNiIface);
+ *     getExtensionGnssNi() generates (IGnssNi gnssNiIface);
  */
 interface IGnss extends @1.1::IGnss {
     /**
      * Opens the interface and provides the callback routines to the implementation of this
      * interface.
      *
+     * The framework calls this method to instruct the GPS engine to prepare for serving requests
+     * from the framework. The GNSS HAL implementation must respond to all GNSS requests from the
+     * framework upon successful return from this method until cleanup() method is called to
+     * close this interface.
+     *
      * @param callback Callback interface for IGnss.
      *
      * @return success Returns true on success.
@@ -83,8 +88,9 @@
     /**
      * This method returns the IGnssMeasurement interface.
      *
-     * Exactly one of getExtensionGnssMeasurement_1_1() and getExtensionGnssMeasurement_2_0() must
-     * return a non-null handle, and the other method must return nullptr.
+     * Exactly one of getExtensionGnssMeasurement(), getExtensionGnssMeasurement_1_1(), and
+     * getExtensionGnssMeasurement_2_0() methods must return a non-null handle, and the other
+     * methods must return nullptr.
      *
      * @return gnssMeasurementIface Handle to the IGnssMeasurement interface.
      */