diff --git a/components/drivers/tty/n_tty.c b/components/drivers/tty/n_tty.c
index 06bd64d6bef31271b55a08fab9eb1011f0b9e3ba..5a723f0cc75bdc5005fd0571d51766f7787d7ffc 100644
--- a/components/drivers/tty/n_tty.c
+++ b/components/drivers/tty/n_tty.c
@@ -49,27 +49,6 @@
 #define ECHO_BLOCK      256
 #define ECHO_DISCARD_WATERMARK  RT_TTY_BUF - (ECHO_BLOCK + 32)
 
-void mutex_lock(rt_mutex_t mutex)
-{
-    rt_err_t result = -RT_EBUSY;
-
-    while (result == -RT_EBUSY)
-    {
-        result = rt_mutex_take(mutex, RT_WAITING_FOREVER);
-    }
-
-    if (result != RT_EOK)
-    {
-        RT_ASSERT(0);
-    }
-    return;
-}
-
-void mutex_unlock(rt_mutex_t mutex)
-{
-    rt_mutex_release(mutex);
-    return;
-}
 struct n_tty_data
 {
     /* producer-published */
diff --git a/components/lwp/Kconfig b/components/lwp/Kconfig
index 26f83ead98cd1e731ed8709eb66d3cc53679bc35..da62bb0c640854a6a4c087341942d9a53861601b 100644
--- a/components/lwp/Kconfig
+++ b/components/lwp/Kconfig
@@ -3,6 +3,11 @@ menuconfig RT_USING_LWP
     select RT_USING_DFS
     select RT_USING_LIBC
     select RT_USING_POSIX_CLOCKTIME
+    select RT_USING_TTY
+    select RT_USING_NULL
+    select RT_USING_ZERO
+    select RT_USING_RANDOM
+    select RT_USING_RTC
     depends on ARCH_ARM_CORTEX_M || ARCH_ARM_ARM9 || ARCH_ARM_CORTEX_A || ARCH_RISCV64
     default n
     help
diff --git a/components/net/Kconfig b/components/net/Kconfig
index 6411cc5e0c48fb4be83a15ef1e375ded1e465754..cfe7fbca68194f325f2a0c2b41c4a9ef12a2e917 100644
--- a/components/net/Kconfig
+++ b/components/net/Kconfig
@@ -44,6 +44,7 @@ config RT_USING_SAL
         config SAL_USING_AF_UNIX
             bool "Enable support AF_UNIX socket"
             default n
+            default y if RT_USING_LWP
             select LWIP_NETIF_LINK_CALLBACK
 
         if !SAL_USING_POSIX