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diff --git a/nuttx/fs/smartfs/smartfs_mksmartfs.c b/nuttx/fs/smartfs/smartfs_mksmartfs.c
new file mode 100644
index 000000000..9c2dacc7e
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+++ b/nuttx/fs/smartfs/smartfs_mksmartfs.c
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+/****************************************************************************
+ * fs/smartfs/smartfs_mksmartfs.c
+ *
+ *   Copyright (C) 2013 Ken Pettit. All rights reserved.
+ *   Author: Ken Pettit <pettitkd@gmail.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/kmalloc.h>
+#include <nuttx/fs/fs.h>
+#include <nuttx/fs/mksmartfs.h>
+#include <nuttx/fs/ioctl.h>
+#include <nuttx/smart.h>
+
+#include "smartfs.h"
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: mksmartfs
+ *
+ * Description:
+ *   Make a SMART Flash file system image on the specified block device
+ *
+ * Inputs:
+ *   pathname - the full path to a registered block driver
+ *   nrootdirs - Number of root directory entries to create.
+ *
+ * Return:
+ *   Zero (OK) on success; -1 (ERROR) on failure with errno set appropriately:
+ *
+ *   EINVAL  - NULL block driver string, bad number of FATS in 'fmt', bad FAT
+ *     size in 'fmt', bad cluster size in 'fmt'
+ *   ENOENT  - 'pathname' does not refer to anything in the filesystem.
+ *   ENOTBLK - 'pathname' does not refer to a block driver
+ *   EACCES  - block driver does not support wrie or geometry methods
+ *
+ * Assumptions:
+ *   - The caller must assure that the block driver is not mounted and not in
+ *     use when this function is called.  The result of formatting a mounted
+ *     device is indeterminate (but likely not good).
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
+int mksmartfs(FAR const char *pathname, uint8_t nrootdirs)
+#else
+int mksmartfs(FAR const char *pathname)
+#endif
+{
+  struct inode* inode;
+  struct smart_format_s fmt;
+  int ret;
+  int x;
+  uint8_t type; 
+  struct smart_read_write_s request;
+
+  /* Find the inode of the block driver indentified by 'source' */
+
+  ret = open_blockdriver(pathname, 0, &inode);
+  if (ret < 0)
+    {
+      fdbg("Failed to open %s\n", pathname);
+      goto errout;
+    }
+
+  /* Make sure that the inode supports the write and geometry methods at a minimum */
+
+  if (!inode->u.i_bops->write || !inode->u.i_bops->geometry)
+    {
+      fdbg("%s does not support write or geometry methods\n", pathname);
+      ret = -EACCES;
+      goto errout_with_driver;
+    }
+
+  /* Validate the block device is a SMART device */
+
+  /* Perform a low-level SMART format */
+
+#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
+  ret = inode->u.i_bops->ioctl(inode, BIOC_LLFORMAT, nrootdirs);
+#else
+  ret = inode->u.i_bops->ioctl(inode, BIOC_LLFORMAT, 0);
+#endif
+  if (ret != OK)
+    {
+      fdbg("Error creating low-level format: %d\n", ret);
+      goto errout_with_driver;
+    }
+
+  /* Get the format information so we know how big the sectors are */
+
+  ret = inode->u.i_bops->ioctl(inode, BIOC_GETFORMAT, (unsigned long) &fmt);
+
+  /* Now Write the filesystem to media.  Loop for each root dir entry and
+   * allocate the reserved Root Dir Enty, then write a blank root dir for it.
+   */
+
+  type = SMARTFS_SECTOR_TYPE_DIR;
+  request.offset = 0;
+  request.count = 1;
+  request.buffer = &type;
+  x = 0;
+#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
+  for (; x < nrootdirs; x++)
+#endif
+    {
+      ret = inode->u.i_bops->ioctl(inode, BIOC_ALLOCSECT, SMARTFS_ROOT_DIR_SECTOR + x);
+      if (ret != SMARTFS_ROOT_DIR_SECTOR + x)
+        {
+          ret = -EIO;
+          goto errout_with_driver;
+        }
+
+      /* Mark this block as a directory entry */
+
+      request.logsector = SMARTFS_ROOT_DIR_SECTOR + x;
+
+      /* Issue a write to the sector, single byte */
+
+      ret = inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long) &request);
+      if (ret != 0)
+        {
+          ret = -EIO;
+          goto errout_with_driver;
+        }
+    }
+
+errout_with_driver:
+  /* Close the driver */
+
+  (void)close_blockdriver(inode);
+
+errout:
+  /* Release all allocated memory */
+
+  /* Return any reported errors */
+
+  if (ret < 0)
+    {
+      errno = -ret;
+      return ERROR; 
+    }
+
+  return OK;
+}