diff --git a/bluetooth/audio/2.1/default/BluetoothAudioProvidersFactory.cpp b/bluetooth/audio/2.1/default/BluetoothAudioProvidersFactory.cpp
index b0d171a..d7d5476 100644
--- a/bluetooth/audio/2.1/default/BluetoothAudioProvidersFactory.cpp
+++ b/bluetooth/audio/2.1/default/BluetoothAudioProvidersFactory.cpp
@@ -157,7 +157,11 @@
         audio_capabilities[i].codecCapabilities(db_codec_capabilities[i]);
       }
     }
-  } else if (sessionType != SessionType::UNKNOWN) {
+  } else if (sessionType !=
+                 SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
+             sessionType !=
+                 SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH &&
+             sessionType != SessionType::UNKNOWN) {
     std::vector<PcmParameters> db_pcm_capabilities =
         android::bluetooth::audio::GetSoftwarePcmCapabilities_2_1();
     if (db_pcm_capabilities.size() == 1) {
diff --git a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp b/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp
index ba31d39..eb87178 100644
--- a/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp
+++ b/bluetooth/audio/2.2/default/A2dpSoftwareAudioProvider.cpp
@@ -21,7 +21,7 @@
 #include <android-base/logging.h>
 
 #include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
+#include "BluetoothAudioSupportedCodecsDB_2_2.h"
 
 namespace android {
 namespace hardware {
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp b/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp
index 3c0ff42..18ac292 100644
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp
+++ b/bluetooth/audio/2.2/default/BluetoothAudioProvider.cpp
@@ -22,7 +22,7 @@
 
 #include "AudioPort_2_0_to_2_2_Wrapper.h"
 #include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
+#include "BluetoothAudioSupportedCodecsDB_2_2.h"
 
 namespace android {
 namespace hardware {
diff --git a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp b/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp
index 510833d..51ee422 100644
--- a/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp
+++ b/bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp
@@ -20,7 +20,7 @@
 
 #include <android-base/logging.h>
 
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
+#include "BluetoothAudioSupportedCodecsDB_2_2.h"
 
 namespace android {
 namespace hardware {
diff --git a/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp b/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp
index 9b3294f..25e49a1 100644
--- a/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp
+++ b/bluetooth/audio/2.2/default/HearingAidAudioProvider.cpp
@@ -21,7 +21,7 @@
 #include <android-base/logging.h>
 
 #include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
+#include "BluetoothAudioSupportedCodecsDB_2_2.h"
 
 namespace android {
 namespace hardware {
diff --git a/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp b/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp
index 9ec1776..a7a0023 100644
--- a/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp
+++ b/bluetooth/audio/2.2/default/LeAudioAudioProvider.cpp
@@ -22,7 +22,7 @@
 
 #include "AudioPort_2_0_to_2_2_Wrapper.h"
 #include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
+#include "BluetoothAudioSupportedCodecsDB_2_2.h"
 
 namespace android {
 namespace hardware {
diff --git a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
index e3da267..2b0c02f 100644
--- a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
+++ b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
@@ -22,7 +22,6 @@
 
 #include "AudioPort_2_0_to_2_2_Wrapper.h"
 #include "BluetoothAudioSessionReport_2_2.h"
-#include "BluetoothAudioSupportedCodecsDB_2_1.h"
 #include "BluetoothAudioSupportedCodecsDB_2_2.h"
 
 namespace android {
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h
index b4ba8cf..dbdf247 100644
--- a/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h
+++ b/bluetooth/audio/utils/session/BluetoothAudioSessionControl_2_2.h
@@ -87,7 +87,7 @@
     std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
         BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
     if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->StartStream();
+      return session_ptr->StartStream();
     }
     return false;
   }
@@ -96,7 +96,7 @@
     std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
         BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
     if (session_ptr != nullptr) {
-      return session_ptr->GetAudioSession()->SuspendStream();
+      return session_ptr->SuspendStream();
     }
     return false;
   }
@@ -105,7 +105,7 @@
     std::shared_ptr<BluetoothAudioSession_2_2> session_ptr =
         BluetoothAudioSessionInstance_2_2::GetSessionInstance(session_type);
     if (session_ptr != nullptr) {
-      session_ptr->GetAudioSession()->StopStream();
+      session_ptr->StopStream();
     }
   }
 
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSession_2_1.cpp b/bluetooth/audio/utils/session/BluetoothAudioSession_2_1.cpp
index 646e225..bf1f9b5 100644
--- a/bluetooth/audio/utils/session/BluetoothAudioSession_2_1.cpp
+++ b/bluetooth/audio/utils/session/BluetoothAudioSession_2_1.cpp
@@ -46,6 +46,19 @@
     return false;
   }
 }
+
+bool is_unsupported_2_1_session_type(
+    const ::android::hardware::bluetooth::audio::V2_1::SessionType&
+        session_type) {
+  if (session_type ==
+          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+      session_type ==
+          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+    return true;
+  } else {
+    return false;
+  }
+}
 }  // namespace
 
 BluetoothAudioSession_2_1::BluetoothAudioSession_2_1(
@@ -53,7 +66,8 @@
         session_type)
     : audio_session(BluetoothAudioSessionInstance::GetSessionInstance(
           static_cast<SessionType_2_0>(session_type))) {
-  if (is_2_0_session_type(session_type)) {
+  if (is_2_0_session_type(session_type) ||
+      is_unsupported_2_1_session_type(session_type)) {
     session_type_2_1_ = (SessionType_2_1::UNKNOWN);
   } else {
     session_type_2_1_ = (session_type);
@@ -80,7 +94,7 @@
     // pcmConfig only differs between 2.0 and 2.1 in AudioConfiguration
     if (fromConf.getDiscriminator() ==
         AudioConfiguration::hidl_discriminator::codecConfig) {
-      toConf.codecConfig() = fromConf.codecConfig();
+      toConf.codecConfig(fromConf.codecConfig());
     } else {
       toConf.pcmConfig() = {
           .sampleRate = static_cast<
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp
index 80df5d9..ee2096b 100644
--- a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp
+++ b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.cpp
@@ -76,7 +76,9 @@
 
 bool BluetoothAudioSession_2_2::IsSessionReady() {
   if (session_type_2_1_ !=
-      SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
+      session_type_2_1_ !=
+          SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
     return audio_session->IsSessionReady();
   }
 
@@ -157,7 +159,7 @@
           GetAudioSession_2_1()->GetAudioConfig();
       if (fromConf.getDiscriminator() ==
           AudioConfiguration_2_1::hidl_discriminator::pcmConfig) {
-        toConf.pcmConfig() = fromConf.pcmConfig();
+        toConf.pcmConfig(fromConf.pcmConfig());
         return toConf;
       }
     }
@@ -167,7 +169,7 @@
     // pcmConfig only differs between 2.0 and 2.1 in AudioConfiguration
     if (fromConf.getDiscriminator() ==
         AudioConfiguration::hidl_discriminator::codecConfig) {
-      toConf.codecConfig() = fromConf.codecConfig();
+      toConf.codecConfig(fromConf.codecConfig());
     } else {
       toConf.pcmConfig() = {
           .sampleRate = static_cast<
@@ -186,6 +188,52 @@
   }
 }
 
+// Those control functions are for the bluetooth_audio module to start, suspend,
+// stop stream, to check position, and to update metadata.
+bool BluetoothAudioSession_2_2::StartStream() {
+  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
+  if (!IsSessionReady()) {
+    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
+               << " has NO session";
+    return false;
+  }
+  auto hal_retval = audio_session->stack_iface_->startStream();
+  if (!hal_retval.isOk()) {
+    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
+                 << toString(session_type_2_1_) << " failed";
+    return false;
+  }
+  return true;
+}
+
+bool BluetoothAudioSession_2_2::SuspendStream() {
+  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
+  if (!IsSessionReady()) {
+    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_2_1_)
+               << " has NO session";
+    return false;
+  }
+  auto hal_retval = audio_session->stack_iface_->suspendStream();
+  if (!hal_retval.isOk()) {
+    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
+                 << toString(session_type_2_1_) << " failed";
+    return false;
+  }
+  return true;
+}
+
+void BluetoothAudioSession_2_2::StopStream() {
+  std::lock_guard<std::recursive_mutex> guard(audio_session->mutex_);
+  if (!IsSessionReady()) {
+    return;
+  }
+  auto hal_retval = audio_session->stack_iface_->stopStream();
+  if (!hal_retval.isOk()) {
+    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
+                 << toString(session_type_2_1_) << " failed";
+  }
+}
+
 bool BluetoothAudioSession_2_2::UpdateAudioConfig(
     const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
         audio_config) {
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h
index d6ae3d7..3f1f0e0 100644
--- a/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h
+++ b/bluetooth/audio/utils/session/BluetoothAudioSession_2_2.h
@@ -69,6 +69,12 @@
       const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration&
           audio_config);
 
+  // Those control functions are for the bluetooth_audio module to start,
+  // suspend, stop stream, to check position, and to update metadata.
+  bool StartStream();
+  bool SuspendStream();
+  void StopStream();
+
   // The control function is for the bluetooth_audio module to get the current
   // AudioConfiguration
   const ::android::hardware::bluetooth::audio::V2_2::AudioConfiguration
diff --git a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h b/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h
index 59d22b7..8321616 100644
--- a/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h
+++ b/bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h
@@ -19,6 +19,7 @@
 #include <android/hardware/bluetooth/audio/2.2/types.h>
 
 #include "BluetoothAudioSupportedCodecsDB.h"
+#include "BluetoothAudioSupportedCodecsDB_2_1.h"
 
 namespace android {
 namespace bluetooth {