1 files changed, 3 insertions, 0 deletions
diff --git a/nuttx/include/cxx/cunistd b/nuttx/include/cxx/cunistd
index 2ddc84144..2f0b71270 100755
--- a/nuttx/include/cxx/cunistd
+++ b/nuttx/include/cxx/cunistd
@@ -41,6 +41,7 @@
 //***************************************************************************
 
 #include <unistd.h>
+
 //***************************************************************************
 // Namespace
 //***************************************************************************
@@ -49,6 +50,8 @@ namespace std
 {
   using ::getpid;
   using ::_exit;
+  using ::sleep;
+  using ::usleep;
   using ::close;
   using ::dup;
   using ::dup2;