import RT-Thread@9217865c without bsp, libcpu and components/net

components/dfs/Kconfig

@@ -0,0 +1,52 @@
+menu "DFS: device virtual file system"
+
+config RT_USING_DFS
+    bool "DFS: device virtual file system"
+    select RT_USING_MUTEX
+    default y
+    help
+        The device file system is a light weight virtual file system.
+
+if RT_USING_DFS
+    config DFS_USING_POSIX
+        bool "Using posix-like functions, open/read/write/close"
+        default y
+
+    config DFS_USING_WORKDIR
+        bool "Using working directory"
+        default y
+
+    config RT_USING_DFS_MNTTABLE
+        bool "Using mount table for file system"
+        default n
+        help
+            User can use mount table for automatically mount, for example:
+                const struct dfs_mount_tbl mount_table[] =
+                {
+                    {"flash0", "/", "elm", 0, 0},
+                    {0}
+                };
+            The mount_table must be terminated with NULL.
+
+    config DFS_FD_MAX
+        int "The maximal number of opened files"
+        default 16
+
+    choice
+        prompt "The version of DFS"
+        default RT_USING_DFS_V1
+        default RT_USING_DFS_V2 if RT_USING_SMART
+
+        config RT_USING_DFS_V1
+            bool "DFS v1.0"
+
+        config RT_USING_DFS_V2
+            bool "DFS v2.0"
+    endchoice
+
+source "$RTT_DIR/components/dfs/dfs_v1/Kconfig"
+source "$RTT_DIR/components/dfs/dfs_v2/Kconfig"
+
+endif
+
+endmenu