diff --git a/include/stdio.h b/include/stdio.h
index b228fcdecae..5931ac91a74 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -192,10 +192,11 @@ int    vfprintf(FAR FILE *stream, FAR const IPTR char *fmt,
          va_list ap);
 int    vfscanf(FAR FILE *stream, FAR const IPTR char *fmt, va_list ap);
 int    vprintf(FAR const IPTR char *fmt, va_list ap);
+int    vscanf(FAR const IPTR char *fmt, va_list ap);
 int    vsnprintf(FAR char *buf, size_t size, FAR const IPTR char *fmt,
          va_list ap);
 int    vsprintf(FAR char *buf, FAR const IPTR char *fmt, va_list ap);
-int    vsscanf(FAR const char *buf, FAR const char *fmt, va_list ap);
+int    vsscanf(FAR const char *buf, FAR const IPTR char *fmt, va_list ap);
 
 /* Operations on file descriptors including:
  *
diff --git a/libs/libc/libc.csv b/libs/libc/libc.csv
index f1f63751fab..37002078c13 100644
--- a/libs/libc/libc.csv
+++ b/libs/libc/libc.csv
@@ -9,7 +9,7 @@
 "aio_return","aio.h","defined(CONFIG_FS_AIO)","ssize_t","FAR struct aiocb *"
 "aio_suspend","aio.h","defined(CONFIG_FS_AIO)","int","FAR const struct aiocb * const []|FAR const struct aiocb * const *","int","FAR const struct timespec *"
 "alarm","unistd.h","!defined(CONFIG_DISABLE_POSIX_TIMERS)","unsigned int","unsigned int"
-"asprintf","stdio.h","","int","FAR char **","FAR const char *","..."
+"asprintf","stdio.h","","int","FAR char **","FAR const IPTR char *","..."
 "b16atan2","fixedmath.h","!defined(CONFIG_HAVE_LONG_LONG)","b16_t","b16_t","b16_t"
 "b16cos","fixedmath.h","","b16_t","b16_t"
 "b16divb16","fixedmath.h","!defined(CONFIG_HAVE_LONG_LONG)","b16_t","b16_t","b16_t"
@@ -42,7 +42,7 @@
 "fgets","stdio.h","CONFIG_NFILE_STREAMS > 0","FAR char *","FAR char *","int","FAR FILE *"
 "fileno","stdio.h","","int","FAR FILE *"
 "fopen","stdio.h","CONFIG_NFILE_STREAMS > 0","FAR FILE *","FAR const char *","FAR const char *"
-"fprintf","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR FILE *","FAR const char *","..."
+"fprintf","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR FILE *","FAR const IPTR char *","..."
 "fputc","stdio.h","CONFIG_NFILE_STREAMS > 0","int","int","FAR FILE *"
 "fputs","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR const char *","FAR FILE *"
 "fread","stdio.h","CONFIG_NFILE_STREAMS > 0","size_t","FAR void *","size_t","size_t","FAR FILE *"
@@ -105,7 +105,7 @@
 "ntohs","arpa/inet.h","","uint16_t","uint16_t"
 "perror","stdio.h","CONFIG_NFILE_STREAMS > 0","void","FAR const char *"
 "pipe","unistd.h","","int","int [2]|FAR int *"
-"printf","stdio.h","","int","FAR const char *","..."
+"printf","stdio.h","","int","FAR const IPTR char *","..."
 "pthread_attr_destroy","pthread.h","!defined(CONFIG_DISABLE_PTHREAD)","int","FAR pthread_attr_t *"
 "pthread_attr_getinheritsched","pthread.h","!defined(CONFIG_DISABLE_PTHREAD)","int","FAR const pthread_attr_t *","FAR int *"
 "pthread_attr_getschedparam","pthread.h","!defined(CONFIG_DISABLE_PTHREAD)","int","FAR const pthread_attr_t *","FAR struct sched_param *"
@@ -155,8 +155,8 @@
 "sigfillset","signal.h","","int","FAR sigset_t *"
 "sigismember","signal.h","","int","FAR const sigset_t *","int"
 "sleep","unistd.h","","unsigned int","unsigned int"
-"snprintf","stdio.h","","int","FAR char *","size_t","FAR const char *","..."
-"sprintf","stdio.h","","int","FAR char *","FAR const char *","..."
+"snprintf","stdio.h","","int","FAR char *","size_t","FAR const IPTR char *","..."
+"sprintf","stdio.h","","int","FAR char *","FAR const IPTR char *","..."
 "sq_addafter","queue.h","","void","FAR sq_entry_t *","FAR sq_entry_t *","FAR sq_queue_t *"
 "sq_addfirst","queue.h","","void","FAR sq_entry_t *","FAR sq_queue_t *"
 "sq_addlast","queue.h","","void","FAR sq_entry_t *","FAR sq_queue_t *"
@@ -165,7 +165,7 @@
 "sq_remfirst","queue.h","","FAR sq_entry_t *","FAR sq_queue_t *"
 "sq_remlast","queue.h","","FAR sq_entry_t *","FAR sq_queue_t *"
 "srand","stdlib.h","","void","unsigned int"
-"sscanf","stdio.h","","int","FAR const char *","FAR const char *","..."
+"sscanf","stdio.h","","int","FAR const IPTR char *","FAR const char *","..."
 "strcasecmp","strings.h","","int","FAR const char *","FAR const char *"
 "strcasestr","string.h","","FAR char *","FAR const char *","FAR const char *"
 "strcat","string.h","","FAR char *","FAR char *","FAR const char *"
@@ -199,7 +199,7 @@
 "strxfrm","string.h","defined(CONFIG_LIBC_LOCALE)","size_t","FAR char *","FAR const char *","size_t"
 "swab","unistd.h","","void","FAR const void *","FAR void *","ssize_t"
 "swprintf","wchar.h","defined(CONFIG_LIBC_WCHAR)","int","FAR wchar_t *","size_t","FAR const wchar_t *","..."
-"syslog","syslog.h","","void","int","FAR const char *","..."
+"syslog","syslog.h","","void","int","FAR const IPTR char *","..."
 "tcflush","termios.h","defined(CONFIG_SERIAL_TERMIOS)","int","int","int"
 "tcgetattr","termios.h","defined(CONFIG_SERIAL_TERMIOS)","int","int","FAR struct termios *"
 "tcsetattr","termios.h","defined(CONFIG_SERIAL_TERMIOS)","int","int","int","FAR const struct termios *"
@@ -212,13 +212,14 @@
 "ub16sqr","fixedmath.h","!defined(CONFIG_HAVE_LONG_LONG)","ub16_t","ub16_t"
 "ungetc","stdio.h","CONFIG_NFILE_STREAMS > 0","int","int","FAR FILE *"
 "usleep","unistd.h","","int","useconds_t"
-"vasprintf","stdio.h","","int","FAR char **","FAR const char *","va_list"
-"vfprintf","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR FILE *","FAR const char *","va_list"
-"vprintf","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR const char *","va_list"
-"vsnprintf","stdio.h","","int","FAR char *","size_t","FAR const char *","va_list"
-"vsprintf","stdio.h","","int","FAR char *","FAR const char *","va_list"
-"vsscanf","stdio.h","","int","FAR const char *","FAR const char *","va_list"
-"vsyslog","syslog.h","","void","int","FAR const char *","va_list"
+"vasprintf","stdio.h","","int","FAR char **","FAR const IPTR char *","va_list"
+"vfprintf","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR FILE *","FAR const IPTR char *","va_list"
+"vprintf","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR const IPTR char *","va_list"
+"vscanf","stdio.h","CONFIG_NFILE_STREAMS > 0","int","FAR const IPTR char *","va_list"
+"vsnprintf","stdio.h","","int","FAR char *","size_t","FAR const IPTR char *","va_list"
+"vsprintf","stdio.h","","int","FAR char *","FAR const IPTR char *","va_list"
+"vsscanf","stdio.h","","int","FAR const char *","FAR const IPTR char *","va_list"
+"vsyslog","syslog.h","","void","int","FAR const IPTR char *","va_list"
 "wcrtomb","wchar.h","defined(CONFIG_LIBC_WCHAR)","size_t","FAR char *","wchar_t","FAR mbstate_t *"
 "wcscmp","wchar.h","defined(CONFIG_LIBC_WCHAR)","int","FAR const wchar_t *","FAR const wchar_t *"
 "wcscoll","wchar.h","defined(CONFIG_LIBC_WCHAR)","int","FAR const wchar_t *","FAR const wchar_t *"
diff --git a/libs/libc/stdio/Make.defs b/libs/libc/stdio/Make.defs
index e00af30574d..5af1ae7e18a 100644
--- a/libs/libc/stdio/Make.defs
+++ b/libs/libc/stdio/Make.defs
@@ -60,7 +60,7 @@ CSRCS += lib_stdinstream.c lib_stdoutstream.c lib_stdsistream.c
 CSRCS += lib_stdsostream.c lib_perror.c lib_feof.c lib_ferror.c
 CSRCS += lib_rawinstream.c lib_rawoutstream.c lib_rawsistream.c
 CSRCS += lib_rawsostream.c lib_remove.c lib_clearerr.c lib_scanf.c
-CSRCS += lib_fscanf.c lib_vfscanf.c lib_tmpfile.c
+CSRCS += lib_vscanf.c lib_fscanf.c lib_vfscanf.c lib_tmpfile.c
 
 endif
 
diff --git a/libs/libc/stdio/lib_vscanf.c b/libs/libc/stdio/lib_vscanf.c
new file mode 100644
index 00000000000..bd491059d4a
--- /dev/null
+++ b/libs/libc/stdio/lib_vscanf.c
@@ -0,0 +1,40 @@
+/****************************************************************************
+ * libs/libc/stdio/lib_vscanf.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 <stdio.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: vscanf
+ ****************************************************************************/
+
+int vscanf(FAR const IPTR char *fmt, va_list ap)
+{
+  /* vfscanf from stdin */
+
+  return vfscanf(stdin, fmt, ap);
+}
diff --git a/libs/libc/stdio/lib_vsscanf.c b/libs/libc/stdio/lib_vsscanf.c
index 979a0190907..80187ce4520 100644
--- a/libs/libc/stdio/lib_vsscanf.c
+++ b/libs/libc/stdio/lib_vsscanf.c
@@ -53,7 +53,7 @@
  * Name: vsscanf
  ****************************************************************************/
 
-int vsscanf(FAR const char *buf, FAR const char *fmt, va_list ap)
+int vsscanf(FAR const char *buf, FAR const IPTR char *fmt, va_list ap)
 {
   struct lib_meminstream_s meminstream;
   int n;
@@ -65,7 +65,6 @@ int vsscanf(FAR const char *buf, FAR const char *fmt, va_list ap)
 
   /* Then let lib_vscanf do the real work */
 
-
   n = lib_vscanf((FAR struct lib_instream_s *)&meminstream.public, NULL,
                   fmt, ap);
   return n;