diff --git a/components/fs/littlefs/lfs_api.c b/components/fs/littlefs/lfs_api.c
index 92c0194c..b36dee95 100644
--- a/components/fs/littlefs/lfs_api.c
+++ b/components/fs/littlefs/lfs_api.c
@@ -38,7 +38,7 @@ FileDirInfo g_lfsDir[LFS_MAX_OPEN_DIRS] = {0};
 FileOpInfo g_fsOp;
 static LittleFsHandleStruct g_handle[LITTLE_FS_MAX_OPEN_FILES] = {0};
 struct dirent g_nameValue;
-struct fsmap_t g_fsmap[MAX_FILE_SYSTEM_LEN] = {0};
+struct FsMap g_fsmap[MAX_FILE_SYSTEM_LEN] = {0};
 static pthread_mutex_t g_FslocalMutex = PTHREAD_MUTEX_INITIALIZER;
 
 FileOpInfo GetFsOpInfo(void)
@@ -83,7 +83,7 @@ int InitMountInfo(const char *fileSystemType, const struct MountOps *fsMops)
         if (g_fsmap[i].fileSystemtype == NULL) {
             g_fsmap[i].fileSystemtype = (char*)malloc(len);
             memcpy_s(g_fsmap[i].fileSystemtype, len, fileSystemType, len);
-            g_fsmap[i].fs_mops = fsMops;
+            g_fsmap[i].fsMops = fsMops;
             return VFS_OK;
         }
     }
@@ -91,9 +91,9 @@ int InitMountInfo(const char *fileSystemType, const struct MountOps *fsMops)
     return VFS_ERROR;
 }
 

-const struct fsmap_t *MountFindfs(const char *fileSystemtype)
+const struct FsMap *MountFindfs(const char *fileSystemtype)
 {
-    struct fsmap_t *m = NULL;
+    struct FsMap *m = NULL;
 
     for (int i = 0; i < MAX_FILE_SYSTEM_LEN; i++) {
         m = &(g_fsmap[i]);
@@ -102,7 +102,7 @@ const struct fsmap_t *MountFindfs(const char *fileSystemtype)
         }
     }
 
-    return (const struct fsmap_t *)NULL;
+    return (const struct FsMap *)NULL;
 }
 
 const struct MountOps g_fsMnt = {
@@ -110,7 +110,7 @@ const struct MountOps g_fsMnt = {
     .Umount = LfsUmount,
 };
 
-const struct FileOps lfs_vops = {
+const struct FileOps g_lfsVops = {
     .Mkdir = LfsMkdir,
     .Unlink = LfsUnlink,
     .Rmdir = LfsRmdir,
@@ -132,7 +132,7 @@ int LfsMount(const char *source, const char *target, const char *fileSystemType,
 {
     int ret;
 
-    g_fsOp.fsVops = &lfs_vops;
+    g_fsOp.fsVops = &g_lfsVops;
     ret = lfs_mount(&g_lfs, (struct lfs_config*)data);
 
     return ret;
@@ -200,7 +200,7 @@ struct dirent *LfsReaddir(DIR *dir)
     return NULL;
 }
 
-int LfsClosedir(DIR *dir)
+int LfsClosedir(const DIR *dir)
 {
     return lfs_dir_close(&g_lfs, (lfs_dir_t *)dir);
 }
diff --git a/components/fs/littlefs/lfs_api.h b/components/fs/littlefs/lfs_api.h
index db0d116e..780ef397 100644
--- a/components/fs/littlefs/lfs_api.h
+++ b/components/fs/littlefs/lfs_api.h
@@ -29,11 +29,12 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "lfs.h"
-#include "lfs_util.h"
-#include "dirent.h"
 #include "bits/alltypes.h"
 #include "sys/stat.h"
+
+#include "dirent.h"
+#include "lfs.h"
+#include "lfs_util.h"
 #include "memory.h"
 #include "pthread.h"
 
@@ -60,9 +61,9 @@ struct MountOps {
     int (*Umount)(const char* target);
 };
 
-struct fsmap_t {
+struct FsMap {
     const char *fileSystemtype;
-    const struct MountOps *fs_mops;
+    const struct MountOps *fsMops;
 };
 
 struct FileOps {
@@ -73,7 +74,7 @@ struct FileOps {
     int (*Mkdir)(const char *dirName, mode_t mode);
     struct dirent *(*Readdir)(DIR *dir);
     DIR *(*Opendir)(const char *dirName);
-    int (*Closedir)(DIR *dir);
+    int (*Closedir)(const DIR *dir);
     int (*Read)(int fd, void *buf, size_t len);
     int (*Write)(int fd, const void *buf, size_t len);
     int (*Seek)(int fd, off_t offset, int whence);
@@ -116,7 +117,7 @@ int LfsMkdir(const char *dirName, mode_t mode);
 int LfsRmdir(const char *dirName);
 DIR *LfsOpendir(const char *dirName);
 struct dirent *LfsReaddir(DIR *dir);
-int LfsClosedir(DIR *dir);
+int LfsClosedir(const DIR *dir);
 int LfsOpen(const char *path, int openFlag, int mode);
 int LfsRead(int fd, void *buf, unsigned int len);
 int LfsWrite(int fd, const void *buf, unsigned int len);
@@ -127,6 +128,6 @@ int LfsStat(const char *path, struct stat *buf);
 int LfsFsync(int fd);
 
 FileOpInfo GetFsOpInfo(void);
-const struct fsmap_t *MountFindfs(const char *filesystemtype);
+const struct FsMap *MountFindfs(const char *filesystemtype);