diff --git a/common/include/daudio_ipc_interface_code.h b/common/include/daudio_ipc_interface_code.h
index 6ab67e48b6ac05cb9e02e03595e11e2084f6c174..93cee7c86fb04d8ae7ab24b29d8d8d78bfdc7aa5 100644
--- a/common/include/daudio_ipc_interface_code.h
+++ b/common/include/daudio_ipc_interface_code.h
@@ -38,12 +38,6 @@ enum class IDAudioSinkInterfaceCode : uint32_t {
     UNSUBSCRIBE_LOCAL_HARDWARE = 3,
     DAUDIO_NOTIFY = 4,
 };
-
-/* SAID: 4805 */
-enum IDAudioIpcCBInterfaceCode : uint32_t {
-    NOTIFY_REGRESULT = 0,
-    NOTIFY_UNREGRESULT = 1,
-};
 } // namespace DistributedHardware
 } // namespace OHOS
 #endif
diff --git a/interfaces/inner_kits/native_cpp/audio_sink/include/idaudio_sink.h b/interfaces/inner_kits/native_cpp/audio_sink/include/idaudio_sink.h
index 3ba15b2a9b3cf894229c86b536f41857219bcb18..ba07a29283dd120f81149add2cd432c172f81609 100644
--- a/interfaces/inner_kits/native_cpp/audio_sink/include/idaudio_sink.h
+++ b/interfaces/inner_kits/native_cpp/audio_sink/include/idaudio_sink.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -23,13 +23,6 @@ namespace DistributedHardware {
 class IDAudioSink : public OHOS::IRemoteBroker {
 public:
     DECLARE_INTERFACE_DESCRIPTOR(u"ohos.distributedhardware.distributedaudiosink");
-    enum {
-        INIT_SINK = 0,
-        RELEASE_SINK = 1,
-        SUBSCRIBE_LOCAL_HARDWARE = 2,
-        UNSUBSCRIBE_LOCAL_HARDWARE = 3,
-        DAUDIO_NOTIFY = 4,
-    };
 
     ~IDAudioSink() override = default;
     virtual int32_t InitSink(const std::string &params) = 0;
diff --git a/interfaces/inner_kits/native_cpp/audio_sink/src/daudio_sink_proxy.cpp b/interfaces/inner_kits/native_cpp/audio_sink/src/daudio_sink_proxy.cpp
index 218a218f479b3ca30e8838027b9a76f5566bd50b..d33e6e390598bacd141188a626cec84bd0949741 100644
--- a/interfaces/inner_kits/native_cpp/audio_sink/src/daudio_sink_proxy.cpp
+++ b/interfaces/inner_kits/native_cpp/audio_sink/src/daudio_sink_proxy.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -17,6 +17,7 @@
 
 #include "daudio_constants.h"
 #include "daudio_errorcode.h"
+#include "daudio_ipc_interface_code.h"
 #include "daudio_log.h"
 
 #undef DH_LOG_TAG
@@ -37,7 +38,7 @@ int32_t DAudioSinkProxy::InitSink(const std::string &params)
         return ERR_DH_AUDIO_SA_WRITE_PARAM_FAIED;
     }
 
-    Remote()->SendRequest(INIT_SINK, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSinkInterfaceCode::INIT_SINK), data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -51,7 +52,7 @@ int32_t DAudioSinkProxy::ReleaseSink()
         return ERR_DH_AUDIO_SA_WRITE_INTERFACE_TOKEN_FAILED;
     }
 
-    Remote()->SendRequest(RELEASE_SINK, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSinkInterfaceCode::RELEASE_SINK), data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -71,7 +72,8 @@ int32_t DAudioSinkProxy::SubscribeLocalHardware(const std::string &dhId, const s
         return ERR_DH_AUDIO_SA_WRITE_PARAM_FAIED;
     }
 
-    Remote()->SendRequest(SUBSCRIBE_LOCAL_HARDWARE, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSinkInterfaceCode::SUBSCRIBE_LOCAL_HARDWARE),
+        data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -91,7 +93,8 @@ int32_t DAudioSinkProxy::UnsubscribeLocalHardware(const std::string &dhId)
         return ERR_DH_AUDIO_SA_WRITE_PARAM_FAIED;
     }
 
-    Remote()->SendRequest(UNSUBSCRIBE_LOCAL_HARDWARE, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSinkInterfaceCode::UNSUBSCRIBE_LOCAL_HARDWARE),
+        data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -113,7 +116,7 @@ void DAudioSinkProxy::DAudioNotify(const std::string &devId, const std::string &
         return;
     }
 
-    Remote()->SendRequest(DAUDIO_NOTIFY, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSinkInterfaceCode::DAUDIO_NOTIFY), data, reply, option);
 }
 } // namespace DistributedHardware
 } // namespace OHOS
\ No newline at end of file
diff --git a/interfaces/inner_kits/native_cpp/audio_source/include/idaudio_source.h b/interfaces/inner_kits/native_cpp/audio_source/include/idaudio_source.h
index d23f72f840b2c8fca1e938e797665bee50bbe1b9..33f658448032829b47cbc3dd51b22a267d4fe9ee 100644
--- a/interfaces/inner_kits/native_cpp/audio_source/include/idaudio_source.h
+++ b/interfaces/inner_kits/native_cpp/audio_source/include/idaudio_source.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -25,14 +25,6 @@ namespace DistributedHardware {
 class IDAudioSource : public OHOS::IRemoteBroker {
 public:
     DECLARE_INTERFACE_DESCRIPTOR(u"ohos.distributedhardware.distributedaudiosource");
-    enum {
-        INIT_SOURCE = 0,
-        RELEASE_SOURCE = 1,
-        REGISTER_DISTRIBUTED_HARDWARE = 2,
-        UNREGISTER_DISTRIBUTED_HARDWARE = 3,
-        CONFIG_DISTRIBUTED_HARDWARE = 4,
-        DAUDIO_NOTIFY = 5,
-    };
 
     ~IDAudioSource() override = default;
     virtual int32_t InitSource(const std::string &params, const sptr<IDAudioIpcCallback> &callback) = 0;
diff --git a/interfaces/inner_kits/native_cpp/audio_source/src/daudio_source_proxy.cpp b/interfaces/inner_kits/native_cpp/audio_source/src/daudio_source_proxy.cpp
index 6ad6046d83cb18be38aebb7f5e907d6a2177c144..480d77f911cde5ecc71ec0a769521715b44323cb 100644
--- a/interfaces/inner_kits/native_cpp/audio_source/src/daudio_source_proxy.cpp
+++ b/interfaces/inner_kits/native_cpp/audio_source/src/daudio_source_proxy.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -17,6 +17,7 @@
 
 #include "daudio_constants.h"
 #include "daudio_errorcode.h"
+#include "daudio_ipc_interface_code.h"
 #include "daudio_log.h"
 
 #undef DH_LOG_TAG
@@ -37,7 +38,7 @@ int32_t DAudioSourceProxy::InitSource(const std::string &params, const sptr<IDAu
         return ERR_DH_AUDIO_SA_WRITE_PARAM_FAIED;
     }
 
-    Remote()->SendRequest(INIT_SOURCE, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSourceInterfaceCode::INIT_SOURCE), data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -51,7 +52,7 @@ int32_t DAudioSourceProxy::ReleaseSource()
         return ERR_DH_AUDIO_SA_WRITE_INTERFACE_TOKEN_FAILED;
     }
 
-    Remote()->SendRequest(RELEASE_SOURCE, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSourceInterfaceCode::RELEASE_SOURCE), data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -74,7 +75,8 @@ int32_t DAudioSourceProxy::RegisterDistributedHardware(const std::string &devId,
         return ERR_DH_AUDIO_SA_WRITE_PARAM_FAIED;
     }
 
-    Remote()->SendRequest(REGISTER_DISTRIBUTED_HARDWARE, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSourceInterfaceCode::REGISTER_DISTRIBUTED_HARDWARE),
+        data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -96,7 +98,8 @@ int32_t DAudioSourceProxy::UnregisterDistributedHardware(const std::string &devI
         return ERR_DH_AUDIO_SA_WRITE_PARAM_FAIED;
     }
 
-    Remote()->SendRequest(UNREGISTER_DISTRIBUTED_HARDWARE, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSourceInterfaceCode::UNREGISTER_DISTRIBUTED_HARDWARE),
+        data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -117,7 +120,8 @@ int32_t DAudioSourceProxy::ConfigDistributedHardware(const std::string &devId, c
         return ERR_DH_AUDIO_SA_WRITE_PARAM_FAIED;
     }
 
-    Remote()->SendRequest(CONFIG_DISTRIBUTED_HARDWARE, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSourceInterfaceCode::CONFIG_DISTRIBUTED_HARDWARE),
+        data, reply, option);
     int32_t ret = reply.ReadInt32();
     return ret;
 }
@@ -139,7 +143,8 @@ void DAudioSourceProxy::DAudioNotify(const std::string &devId, const std::string
         return;
     }
 
-    Remote()->SendRequest(DAUDIO_NOTIFY, data, reply, option);
+    Remote()->SendRequest(static_cast<uint32_t>(IDAudioSourceInterfaceCode::DAUDIO_NOTIFY),
+        data, reply, option);
 }
 } // namespace DistributedHardware
 } // namespace OHOS
\ No newline at end of file
diff --git a/services/audiomanager/servicesink/src/daudio_sink_stub.cpp b/services/audiomanager/servicesink/src/daudio_sink_stub.cpp
index de02c128058fb2f2e16381c11499b81979f407fb..78c96ecef334536f66d28949815827e006e81e91 100644
--- a/services/audiomanager/servicesink/src/daudio_sink_stub.cpp
+++ b/services/audiomanager/servicesink/src/daudio_sink_stub.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -17,6 +17,7 @@
 
 #include "daudio_constants.h"
 #include "daudio_errorcode.h"
+#include "daudio_ipc_interface_code.h"
 #include "daudio_log.h"
 
 #undef DH_LOG_TAG
@@ -27,11 +28,16 @@ namespace DistributedHardware {
 DAudioSinkStub::DAudioSinkStub()
 {
     DHLOGI("Distributed audio sink stub constructed.");
-    memberFuncMap_[INIT_SINK] = &DAudioSinkStub::InitSinkInner;
-    memberFuncMap_[RELEASE_SINK] = &DAudioSinkStub::ReleaseSinkInner;
-    memberFuncMap_[SUBSCRIBE_LOCAL_HARDWARE] = &DAudioSinkStub::SubscribeLocalHardwareInner;
-    memberFuncMap_[UNSUBSCRIBE_LOCAL_HARDWARE] = &DAudioSinkStub::UnsubscribeLocalHardwareInner;
-    memberFuncMap_[DAUDIO_NOTIFY] = &DAudioSinkStub::DAudioNotifyInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSinkInterfaceCode::INIT_SINK)] =
+        &DAudioSinkStub::InitSinkInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSinkInterfaceCode::RELEASE_SINK)] =
+        &DAudioSinkStub::ReleaseSinkInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSinkInterfaceCode::SUBSCRIBE_LOCAL_HARDWARE)] =
+        &DAudioSinkStub::SubscribeLocalHardwareInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSinkInterfaceCode::UNSUBSCRIBE_LOCAL_HARDWARE)] =
+        &DAudioSinkStub::UnsubscribeLocalHardwareInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSinkInterfaceCode::DAUDIO_NOTIFY)] =
+        &DAudioSinkStub::DAudioNotifyInner;
 }
 
 DAudioSinkStub::~DAudioSinkStub()
diff --git a/services/audiomanager/servicesource/src/daudio_source_stub.cpp b/services/audiomanager/servicesource/src/daudio_source_stub.cpp
index ed68f4f976fac12d0da6365d49f16ae3d969eba8..cc62a2d772f50200c1234ddcf24e522e1e2b646a 100644
--- a/services/audiomanager/servicesource/src/daudio_source_stub.cpp
+++ b/services/audiomanager/servicesource/src/daudio_source_stub.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -18,6 +18,7 @@
 #include "daudio_constants.h"
 #include "daudio_errorcode.h"
 #include "daudio_ipc_callback_proxy.h"
+#include "daudio_ipc_interface_code.h"
 #include "daudio_log.h"
 
 #undef DH_LOG_TAG
@@ -27,12 +28,18 @@ namespace OHOS {
 namespace DistributedHardware {
 DAudioSourceStub::DAudioSourceStub()
 {
-    memberFuncMap_[INIT_SOURCE] = &DAudioSourceStub::InitSourceInner;
-    memberFuncMap_[RELEASE_SOURCE] = &DAudioSourceStub::ReleaseSourceInner;
-    memberFuncMap_[REGISTER_DISTRIBUTED_HARDWARE] = &DAudioSourceStub::RegisterDistributedHardwareInner;
-    memberFuncMap_[UNREGISTER_DISTRIBUTED_HARDWARE] = &DAudioSourceStub::UnregisterDistributedHardwareInner;
-    memberFuncMap_[CONFIG_DISTRIBUTED_HARDWARE] = &DAudioSourceStub::ConfigDistributedHardwareInner;
-    memberFuncMap_[DAUDIO_NOTIFY] = &DAudioSourceStub::DAudioNotifyInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSourceInterfaceCode::INIT_SOURCE)] =
+        &DAudioSourceStub::InitSourceInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSourceInterfaceCode::RELEASE_SOURCE)] =
+        &DAudioSourceStub::ReleaseSourceInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSourceInterfaceCode::REGISTER_DISTRIBUTED_HARDWARE)] =
+        &DAudioSourceStub::RegisterDistributedHardwareInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSourceInterfaceCode::UNREGISTER_DISTRIBUTED_HARDWARE)] =
+        &DAudioSourceStub::UnregisterDistributedHardwareInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSourceInterfaceCode::CONFIG_DISTRIBUTED_HARDWARE)] =
+        &DAudioSourceStub::ConfigDistributedHardwareInner;
+    memberFuncMap_[static_cast<uint32_t>(IDAudioSourceInterfaceCode::DAUDIO_NOTIFY)] =
+        &DAudioSourceStub::DAudioNotifyInner;
 }
 
 int32_t DAudioSourceStub::OnRemoteRequest(uint32_t code, MessageParcel &data, MessageParcel &reply,