diff --git a/bsp/qemu-vexpress-a9/drivers/Kconfig b/bsp/qemu-vexpress-a9/drivers/Kconfig
index 85fae65bb1056ff4d38350da86673ef4280f9681..a4754bdab47c5160d4e76a153a3d041515582dd7 100644
--- a/bsp/qemu-vexpress-a9/drivers/Kconfig
+++ b/bsp/qemu-vexpress-a9/drivers/Kconfig
@@ -46,8 +46,8 @@ endif
 config BSP_DRV_EMAC
     bool "Enable EMAC driver"
     select RT_USING_LWIP
-    select RT_USING_SAL
-    select SAL_USING_POSIX
+    select RT_USING_POSIX_FS
+    select RT_USING_POSIX_SOCKET
     default n
 
 config BSP_DRV_AUDIO
diff --git a/bsp/stm32/stm32f407-atk-explorer/board/Kconfig b/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
index 3eddc0a442b633fed2fd25703dae03a773027453..84edfcddc72f78037f672a6dbffae8cef0742237 100644
--- a/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
+++ b/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
@@ -83,13 +83,8 @@ menu "Onboard Peripheral Drivers"
         default n
         select RT_USING_LWIP
         select RT_LWIP_USING_HW_CHECKSUM
-
-    config BSP_USING_ETH_SAL
-        bool "Enable Ethernet with SAL"
-        depends on BSP_USING_ETH
-        default y
-        select RT_USING_SAL
-        select SAL_USING_POSIX
+        select RT_USING_POSIX_FS
+        select RT_USING_POSIX_SOCKET
 
     config PHY_USING_LAN8720A
         bool
diff --git a/components/libc/posix/Kconfig b/components/libc/posix/Kconfig
index 411289baf6846b0ab2b67782d6f43d8b69d00497..ee2fd81a735a8a9443c222a70b22ea5985366afc 100644
--- a/components/libc/posix/Kconfig
+++ b/components/libc/posix/Kconfig
@@ -26,6 +26,12 @@ if RT_USING_POSIX_FS
         select RT_USING_POSIX_POLL
         default n
 
+    config RT_USING_POSIX_SOCKET
+        bool "Enable BSD Socket I/O <sys/socket.h> <netdb.h>"
+        select RT_USING_POSIX_SELECT
+        select RT_USING_SAL
+        default n
+
     config RT_USING_POSIX_TERMIOS
         bool "Enable Terminal I/O <termios.h>"
         select RT_USING_POSIX_STDIO
diff --git a/components/net/sal/Kconfig b/components/net/sal/Kconfig
index 3836049333e6fbe66e9bf02de704920f2bd87fa2..8542f02a2e1bfa2bc516c2bd397be68582d743c3 100644
--- a/components/net/sal/Kconfig
+++ b/components/net/sal/Kconfig
@@ -35,19 +35,16 @@ if RT_USING_SAL
     endif
 
     config SAL_USING_POSIX
-        bool "Enable BSD socket operated by file system API"
-        default n
-        select RT_USING_POSIX_FS
-        select RT_USING_POSIX_SELECT
+        bool
+        depends on DFS_USING_POSIX
+        default y
         help
+            Enable BSD socket operated by file system API
             Let BSD socket operated by file system API, such as read/write and involveed in select/poll POSIX APIs.
 
-    if !SAL_USING_POSIX
-
-        config SAL_SOCKETS_NUM
-            int "the maximum number of sockets"
-            default 16
-
-    endif
+    config SAL_SOCKETS_NUM
+        int "the maximum number of sockets"
+        depends on !SAL_USING_POSIX
+        default 16
 
 endif