diff --git a/wifi/supplicant/1.3/ISupplicantStaIface.hal b/wifi/supplicant/1.3/ISupplicantStaIface.hal
index b501a95..4506f37 100644
--- a/wifi/supplicant/1.3/ISupplicantStaIface.hal
+++ b/wifi/supplicant/1.3/ISupplicantStaIface.hal
@@ -69,7 +69,7 @@
         bitfield<WpaDriverCapabilitiesMask> driverCapabilitiesMask);
 
     /**
-     * Set MBO cellular data status.
+     * Set Wi-Fi Alliance Agile Multiband (MBO) cellular data status.
      *
      * @param available true means cellular data available, false otherwise.
      * @return status Status of the operation.
@@ -93,8 +93,10 @@
         generates (SupplicantStatus status, bitfield<KeyMgmtMask> keyMgmtMask);
 
     /**
-     * Flush FILS HLP IEs
-     * Use this to flush all the HLP IEs in wpa_supplicant
+     * Flush fast initial link setup (IEEE 802.11ai FILS) HLP packets.
+     * Use this to flush all the higher layer protocol (HLP) packets added in
+     * wpa_supplicant to send in FILS (Re)Association Request frame
+     * (Eg: DHCP discover packet).
      *
      * @return status Status of the operation.
      *         Possible status codes:
@@ -106,11 +108,12 @@
     filsHlpFlushRequest() generates (SupplicantStatus status);
 
     /**
-     * Add FILS HLP IEs
-     * Use this to add a HLP IE to wpa_supplicant
+     * Add fast initial link setup (IEEE 802.11ai FILS) HLP packets.
+     * Use this to add higher layer protocol (HLP) packet in FILS (Re)Association Request frame
+     * (Eg: DHCP discover packet).
      *
      * @param dst_mac MAC address of the destination
-     * @param pkt The contents of the HLP IE starting from ethertype
+     * @param pkt The contents of the HLP packet starting from ethertype
      * @return status Status of the operation.
      *         Possible status codes:
      *         |SupplicantStatusCode.SUCCESS|,
diff --git a/wifi/supplicant/1.3/ISupplicantStaIfaceCallback.hal b/wifi/supplicant/1.3/ISupplicantStaIfaceCallback.hal
index 6828dcd..c5da29c 100644
--- a/wifi/supplicant/1.3/ISupplicantStaIfaceCallback.hal
+++ b/wifi/supplicant/1.3/ISupplicantStaIfaceCallback.hal
@@ -147,7 +147,7 @@
     };
 
     /**
-     * Indicates PMK cache added event.
+     * Indicates pairwise master key (PMK) cache added event.
      *
      * @param expirationTimeInSec expiration time in seconds
      * @param serializedEntry is serialized PMK cache entry, the content is
@@ -192,6 +192,9 @@
 
     /**
      * Indicates an EAP authentication failure.
+     * @param errorCode Error code for EAP authentication failure.
+     *        Either standard error code (enum EapErrorCode) or
+     *        private error code defined by network provider.
      */
     oneway onEapFailure_1_3(uint32_t errorCode);
 
diff --git a/wifi/supplicant/1.3/ISupplicantStaNetwork.hal b/wifi/supplicant/1.3/ISupplicantStaNetwork.hal
index 0566a21..2505912 100644
--- a/wifi/supplicant/1.3/ISupplicantStaNetwork.hal
+++ b/wifi/supplicant/1.3/ISupplicantStaNetwork.hal
@@ -214,7 +214,7 @@
         generates (SupplicantStatus status, bitfield<GroupCipherMask> groupCipherMask);
 
     /**
-     * Set WAPI certificate suite for this network.
+     * Set WAPI certificate suite name for this network.
      *
      * @param suite value to set.
      * @return status Status of the operation.
@@ -227,7 +227,7 @@
     setWapiCertSuite(string suite) generates (SupplicantStatus status);
 
     /**
-     * Get WAPI certificate suite set for this network.
+     * Get WAPI certificate suite name set for this network.
      *
      * @return status Status of the operation.
      *         Possible status codes:
@@ -239,7 +239,7 @@
     getWapiCertSuite() generates (SupplicantStatus status, string suite);
 
     /**
-     * Add a PMK into supplicant PMK cache.
+     * Add a pairwise master key (PMK) into supplicant PMK cache.
      *
      * @param serializedEntry is serialized PMK cache entry, the content is
      *              opaque for the framework and depends on the native implementation.
@@ -278,7 +278,7 @@
     getAuthAlg_1_3() generates (SupplicantStatus status, bitfield<AuthAlgMask> authAlgMask);
 
     /**
-     * Enable EAP ERP for this network.
+     * Enable Extensible Authentication (EAP) - Re-authentication Protocol (ERP) for this network.
      *
      * @param enable true to set, false otherwise.
      * @return status Status of the operation.