diff --git a/include/pty.h b/include/pty.h
new file mode 100644
index 0000000000..bf8577690a
--- /dev/null
+++ b/include/pty.h
@@ -0,0 +1,63 @@
+/****************************************************************************
+ * include/pty.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_PTY_H
+#define __INCLUDE_PTY_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+
+#include <termios.h>
+#include <sys/ioctl.h>
+
+#if defined(CONFIG_SERIAL_TERMIOS) && defined(CONFIG_PSEUDOTERM)
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Create pseudo tty pair with name and set terminal attributes according
+ * to term and win and return handles for both ends in master and slave.
+ ****************************************************************************/
+
+int openpty(FAR int *master, FAR int *slave, FAR char *name,
+            FAR const struct termios *term, FAR const struct winsize *win);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* CONFIG_SERIAL_TERMIOS && CONFIG_PSEUDOTERM */
+#endif /* __INCLUDE_PTY_H */
diff --git a/libs/libc/stdlib/Make.defs b/libs/libc/stdlib/Make.defs
index 3d1aa3423e..1c16000745 100644
--- a/libs/libc/stdlib/Make.defs
+++ b/libs/libc/stdlib/Make.defs
@@ -34,6 +34,9 @@ endif
 
 ifeq ($(CONFIG_PSEUDOTERM),y)
 CSRCS += lib_ptsname.c lib_ptsnamer.c lib_unlockpt.c
+ifeq ($(CONFIG_SERIAL_TERMIOS),y)
+CSRCS += lib_openpty.c
+endif
 endif
 
 # Add the stdlib directory to the build
diff --git a/libs/libc/stdlib/lib_openpty.c b/libs/libc/stdlib/lib_openpty.c
new file mode 100644
index 0000000000..e0332105c8
--- /dev/null
+++ b/libs/libc/stdlib/lib_openpty.c
@@ -0,0 +1,159 @@
+/****************************************************************************
+ * libs/libc/stdlib/lib_openpty.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <fcntl.h>
+#include <pty.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <nuttx/serial/pty.h>
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static int openmaster(void)
+{
+#ifdef CONFIG_PSEUDOTERM_SUSV1
+  return open("dev/ptmx", O_RDWR);
+#else
+  int minor;
+
+  for (minor = 0; minor < 256; minor++)
+    {
+      char devname[16];
+      int fd;
+
+      snprintf(devname, 16, "/dev/pty%d", minor);
+      fd = open(devname, O_RDWR);
+      if (fd < 0)
+        {
+          /* Fail, register and try again */
+
+          pty_register(minor);
+          fd = open(devname, O_RDWR);
+        }
+
+      if (fd >= 0)
+        {
+          return fd;
+        }
+    }
+
+  return -1;
+#endif
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: openpty
+ *
+ * Description:
+ *   The openpty() function finds an available pseudoterminal and
+ *   returns file descriptors in master and slave.  If name is not
+ *   NULL, the filename of the slave is returned in name.  If term
+ *   is not NULL, the terminal parameters of the slave will be set
+ *   to the values in term.  If win is not NULL, the window size of
+ *   the slave will be set to the values in win.
+ *
+ * Returned Value:
+ *  If a call to openpty() is not successful, -1 is returned and
+ *  errno is set to indicate the error.  Otherwise, return 0.
+ *
+ ****************************************************************************/
+
+int openpty(FAR int *master, FAR int *slave, FAR char *name,
+            FAR const struct termios *term, FAR const struct winsize *win)
+{
+  char buf[64];
+  int ret;
+
+  /* Open the pseudo terminal master */
+
+  ret = openmaster();
+  if (ret < 0)
+    {
+      return ret;
+    }
+
+  *master = ret;
+
+  /* Configure the pseudo terminal master */
+
+  ret = grantpt(*master);
+  if (ret < 0)
+    {
+      goto err;
+    }
+
+  ret = unlockpt(*master);
+  if (ret < 0)
+    {
+      goto err;
+    }
+
+  /* Open the pseudo terminal slave */
+
+  ret = ptsname_r(*master, buf, sizeof(buf));
+  if (ret < 0)
+    {
+      goto err;
+    }
+
+  ret = open(buf, O_RDWR | O_NOCTTY);
+  if (ret < 0)
+    {
+      goto err;
+    }
+
+  *slave = ret;
+
+  if (name != NULL)
+    {
+      strcpy(name, buf);
+    }
+
+  /* Configure the pseudo terminal slave */
+
+  if (term != NULL)
+    {
+      tcsetattr(*slave, TCSAFLUSH, term);
+    }
+
+  if (win != NULL)
+    {
+      ioctl(*slave, TIOCSWINSZ, win);
+    }
+
+  return 0;
+
+err:
+  close(*master);
+  return ret;
+}