diff --git a/BUILD.gn b/BUILD.gn
index da7c411..51dd893 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -135,6 +135,7 @@ build_ext_component("generate_pcid") {
 ohos_prebuilt_etc("PCID.sc") {
   deps = [ ":generate_pcid" ]
   source = "$root_out_dir/PCID.sc"
+  subsystem_name = "developtools"
   part_name = "syscap_codec"
 }
 
diff --git a/bundle.json b/bundle.json
index 6190d87..c807cc6 100644
--- a/bundle.json
+++ b/bundle.json
@@ -15,6 +15,8 @@
     "syscap": [ "SystemCapability.Developtools.Syscap" ],
     "feature": [ "syscap_codec_config_path" ],
     "adapted_system_type": [ "small", "standard" ],
+    "rom": "0",
+    "ram": "0",
     "deps": {
       "components": [
         "napi",
diff --git a/config.gni b/config.gni
index cbdf88c..eb75e6b 100644
--- a/config.gni
+++ b/config.gni
@@ -9,7 +9,7 @@
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
-# limitations under the License.
+# limitations under the License.
 
 declare_args() {
   syscap_codec_config_path =
diff --git a/include/codec_config/syscap_define.h b/include/codec_config/syscap_define.h
index 3e05a78..96cfe9e 100644
--- a/include/codec_config/syscap_define.h
+++ b/include/codec_config/syscap_define.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef _SYSCAP_DEFINE_H
-#define _SYSCAP_DEFINE_H
+#ifndef SYSCAP_DEFINE_H
+#define SYSCAP_DEFINE_H
 
 #include <stdint.h>
 
@@ -556,4 +556,4 @@ const static SyscapWithNum g_arraySyscap[] = {
 }
 #endif /* __cplusplus */
 #endif /* __cplusplus */
-#endif  // _SYSCAP_DEFINE_H
+#endif  // SYSCAP_DEFINE_H
diff --git a/include/create_pcid.h b/include/create_pcid.h
index 65f5d85..f2cf99c 100644
--- a/include/create_pcid.h
+++ b/include/create_pcid.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef _CREATE_PCID_H
-#define _CREATE_PCID_H
+#ifndef CREATE_PCID_H
+#define CREATE_PCID_H
 
 #include <stdint.h>
 
@@ -29,7 +29,7 @@ typedef struct ProductCompatibilityID {
     uint8_t osSyscap[OS_SYSCAP_BYTES];
 } PCIDMain;
 
-typedef struct pcidHeader {
+typedef struct PcidHeader {
     uint16_t apiVersion : 15;
     uint16_t apiVersionType : 1;
     uint16_t systemType : 3;
diff --git a/interfaces/inner_api/syscap_interface.c b/interfaces/inner_api/syscap_interface.c
index bf8372d..79cd86a 100644
--- a/interfaces/inner_api/syscap_interface.c
+++ b/interfaces/inner_api/syscap_interface.c
@@ -57,7 +57,7 @@ typedef struct ProductCompatibilityID {
     uint8_t osSyscap[OS_SYSCAP_BYTES];
 } PCIDMain;
 
-static const char *pcidPath = "/system/etc/PCID.sc";
+static const char *g_pcidPath = "/system/etc/PCID.sc";
 
 static void FreeContextBuffer(char *contextBuffer)
 {
@@ -131,7 +131,7 @@ bool EncodeOsSyscap(char *output, int len)
         return false;
     }
 
-    ret = GetFileContext(pcidPath, &contextBuffer, &bufferLen);
+    ret = GetFileContext(g_pcidPath, &contextBuffer, &bufferLen);
     if (ret != 0) {
         PRINT_ERR("GetFileContext failed, input file : /system/etc/PCID.sc\n");
         return false;
@@ -155,7 +155,7 @@ bool EncodePrivateSyscap(char **output, int *outputLen)
     char *outputStr = NULL;
     uint32_t bufferLen;
 
-    ret = GetFileContext(pcidPath, &contextBuffer, &bufferLen);
+    ret = GetFileContext(g_pcidPath, &contextBuffer, &bufferLen);
     if (ret != 0) {
         PRINT_ERR("GetFileContext failed, input file : /system/etc/PCID.sc\n");
         return false;
diff --git a/interfaces/inner_api/syscap_interface.h b/interfaces/inner_api/syscap_interface.h
index be48c6e..a26bfae 100644
--- a/interfaces/inner_api/syscap_interface.h
+++ b/interfaces/inner_api/syscap_interface.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef _SYSCAP_INTERFACE_H
-#define _SYSCAP_INTERFACE_H
+#ifndef SYSCAP_INTERFACE_H
+#define SYSCAP_INTERFACE_H
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -76,4 +76,4 @@ int32_t FreeCompareError(CompareError *result);
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-#endif /* _SYSCAP_INTERFACE_H */
\ No newline at end of file
+#endif /* SYSCAP_INTERFACE_H */
\ No newline at end of file
diff --git a/napi/napi_query_syscap.cpp b/napi/napi_query_syscap.cpp
index 858f934..8788c1b 100644
--- a/napi/napi_query_syscap.cpp
+++ b/napi/napi_query_syscap.cpp
@@ -55,7 +55,7 @@ struct SystemCapabilityAsyncContext {
     int status = 0;
 };
 
-static char* getSystemCapability()
+static char* GetSystemCapability()
 {
     bool retBool;
     int retError, priOutputLen, priCapArrayCnt, sumLen;
@@ -179,7 +179,7 @@ napi_value QuerySystemCapability(napi_env env, napi_callback_info info)
         env, nullptr, resource,
         [](napi_env env, void* data) {
             SystemCapabilityAsyncContext *asyncContext = (SystemCapabilityAsyncContext *)data;
-            char *syscapStr = getSystemCapability();
+            char *syscapStr = GetSystemCapability();
             if (syscapStr != nullptr) {
                 asyncContext->value = syscapStr;
                 asyncContext->status = 0;
@@ -248,7 +248,7 @@ static napi_module g_systemCapabilityModule = {
 /*
  * Module register function
  */
-extern "C" __attribute__((constructor)) void systemCapabilityRegisterModule(void)
+extern "C" __attribute__((constructor)) void SystemCapabilityRegisterModule(void)
 {
     napi_module_register(&g_systemCapabilityModule);
 }
diff --git a/napi/query_syscap.js b/napi/query_syscap.js
index 6ea4023..2edc9a7 100644
--- a/napi/query_syscap.js
+++ b/napi/query_syscap.js
@@ -1,7 +1,22 @@
+/*
+ * Copyright (c) 2022 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 // 首先需要通过requireInternal函数加载本模块
 const systemCapability = requireInternal('systemCapability');
 
 // 这里定义了模块对外暴露的所有api
 export default {
-    querySystemCapabilities: systemCapability.querySystemCapabilities
-}
\ No newline at end of file
+  querySystemCapabilities: systemCapability.querySystemCapabilities
+};
\ No newline at end of file
diff --git a/src/endian_internal.c b/src/endian_internal.c
index 5da4f70..9788509 100644
--- a/src/endian_internal.c
+++ b/src/endian_internal.c
@@ -13,15 +13,16 @@
  * limitations under the License.
  */
 
+#include <stdbool.h>
 #include "endian_internal.h"
 
 #define B_L_SWAP16(A)  ((((uint16_t)(A) & 0xff00) >> 8) | (((uint16_t)(A) & 0x00ff) << 8))
 #define B_L_SWAP32(A)  ((((uint32_t)(A) & 0xff000000) >> 24) | (((uint32_t)(A) & 0x00ff0000) >> 8) | \
     (((uint32_t)(A) & 0x0000ff00) << 8) | (((uint32_t)(A) & 0x000000ff) << 24))
 
-int32_t CheckEndian(void);
+static bool CheckEndian(void);
 
-int32_t CheckEndian(void)
+static bool CheckEndian(void)
 {
     union {
         int32_t i;
@@ -29,7 +30,7 @@ int32_t CheckEndian(void)
     } c;
     c.i = 0x12345678;
 
-    return (0x12 == c.s[0]);
+    return (c.s[0] == 0x12);
 }
 
 uint32_t HtonlInter(uint32_t h)
diff --git a/src/endian_internal.h b/src/endian_internal.h
index 8a2c201..aacd786 100644
--- a/src/endian_internal.h
+++ b/src/endian_internal.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef _ENDIAN_INTERNAL_H
-#define _ENDIAN_INTERNAL_H
+#ifndef ENDIAN_INTERNAL_H
+#define ENDIAN_INTERNAL_H
 
 #include <stdint.h>
 
@@ -35,4 +35,4 @@ extern uint16_t NtohsInter(uint16_t n);
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-#endif /* _ENDIAN_INTERNAL_H */
\ No newline at end of file
+#endif /* ENDIAN_INTERNAL_H */
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 6bf204e..8726d43 100644
--- a/src/main.c
+++ b/src/main.c
@@ -60,7 +60,7 @@ int main(int argc, char **argv)
     char *outputpath = getcwd(curpath, sizeof(curpath));
 
     while (1) {
-        static struct option long_options[] = {
+        static struct option longOptions[] = {
             {"help",           no_argument,       0,  'h' },
             {"version",        no_argument,       0,  'v' },
             {"RPCID",          no_argument,       0,  'R' },
@@ -74,7 +74,7 @@ int main(int argc, char **argv)
             {0,                0,                 0,  0   }
         };
 
-        int32_t flag = getopt_long(argc, argv, "hvRPC:edsi:o:", long_options, &optIndex);
+        int32_t flag = getopt_long(argc, argv, "hvRPC:edsi:o:", longOptions, &optIndex);
         if (flag == -1) {
             break;
         }
diff --git a/src/syscap_tool.c b/src/syscap_tool.c
index 01f1802..4697046 100644
--- a/src/syscap_tool.c
+++ b/src/syscap_tool.c
@@ -330,7 +330,7 @@ FREE_SYSCAP_OUT:
     return ret;
 }
 
-static int32_t CheckRpcidFormat(char *inputFile, char **Buffer, uint32_t *Len)
+static int32_t CheckRpcidFormat(char *inputFile, char **buffer, uint32_t *Len)
 {
     uint32_t bufferLen;
     uint16_t sysCaptype, sysCapLength;
@@ -361,7 +361,7 @@ static int32_t CheckRpcidFormat(char *inputFile, char **Buffer, uint32_t *Len)
         return -1;
     }
 
-    *Buffer = contextBuffer;
+    *buffer = contextBuffer;
     *Len = bufferLen;
     return 0;
 }
diff --git a/test/unittest/common/include/syscap_codec_test.h b/test/unittest/common/include/syscap_codec_test.h
index 2410fa1..3cb35fa 100644
--- a/test/unittest/common/include/syscap_codec_test.h
+++ b/test/unittest/common/include/syscap_codec_test.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef _SYSCAP_CODEC_TEST_H
-#define _SYSCAP_CODEC_TEST_H
+#ifndef SYSCAP_CODEC_TEST_H
+#define SYSCAP_CODEC_TEST_H
 
 #ifdef __cplusplus
 #if __cplusplus
@@ -38,4 +38,4 @@ public:
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
-#endif /* _SYSCAP_CODEC_TEST_H */
\ No newline at end of file
+#endif /* SYSCAP_CODEC_TEST_H */
\ No newline at end of file
diff --git a/test/unittest/common/syscap_codec_test.cpp b/test/unittest/common/syscap_codec_test.cpp
index 649d6fd..1d04b48 100644
--- a/test/unittest/common/syscap_codec_test.cpp
+++ b/test/unittest/common/syscap_codec_test.cpp
@@ -83,7 +83,8 @@ HWTEST_F(SyscapCodecTest, DecodeOsSyscap, TestSize.Level1)
 HWTEST_F(SyscapCodecTest, DecodePrivateSyscap, TestSize.Level1)
 {
     char (*priOutput)[SINGLE_SYSCAP_LEN] = nullptr;
-    char priSyscap[] = "Device.syscap1GEDR,Device.syscap2WREGW,Vendor.syscap3RGD,Vendor.syscap4RWEG,Vendor.syscap5REWGWE,";
+    char priSyscap[] = "Device.syscap1GEDR,Device.syscap2WREGW,Vendor."
+        "syscap3RGD,Vendor.syscap4RWEG,Vendor.syscap5REWGWE,";
     int decodePriCnt;
     char expectPriOutput001[] = "SystemCapability.Device.syscap1GEDR";
     char expectPriOutput002[] = "SystemCapability.Device.syscap2WREGW";