diff --git a/components/vfs/Kconfig b/components/vfs/Kconfig
index db0fede600..6b914d8ba3 100644
--- a/components/vfs/Kconfig
+++ b/components/vfs/Kconfig
@@ -14,6 +14,11 @@ menu "Virtual file system"
             Disabling this option can save memory when the support for these functions
             is not required.
 
+            Note that the following functions can still be used with socket file descriptors
+            when this option is disabled:
+
+            close, read, write, ioctl, fcntl.
+
     config VFS_SUPPORT_DIR
         bool "Provide directory related functions"
         default y