diff --git a/fs/driver/fs_syslog.c b/fs/driver/fs_syslog.c
index 93eaa1fc95..ef35fb548e 100644
--- a/fs/driver/fs_syslog.c
+++ b/fs/driver/fs_syslog.c
@@ -360,9 +360,10 @@ int syslog_initialize(void)
  * Description:
  *   This is the low-level system logging interface.  The debugging/syslogging
  *   interfaces are syslog() and lowsyslog().  The difference is is that
- *   the syslog() function writes to fd=1 (stdout) whereas lowsyslog() uses
- *   a lower level interface that works from interrupt handlers.  This
- *   function is a a low-level interface used to implement lowsyslog().
+ *   the syslog() function writes to syslogging device (usually fd=1, stdout)
+ *   whereas lowsyslog() uses a lower level interface that works from
+ *   interrupt handlers.  This function is a a low-level interface used to
+ *   implement lowsyslog().
  *
  ****************************************************************************/
 
diff --git a/include/debug.h b/include/debug.h
index 7fd6bc4977..74f50935a2 100644
--- a/include/debug.h
+++ b/include/debug.h
@@ -104,22 +104,22 @@
 
 #ifdef CONFIG_DEBUG
 # define dbg(format, ...) \
-  syslog(EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
+  syslog(LOG_DEBUG, EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
 
 # ifdef CONFIG_ARCH_LOWPUTC
 #  define lldbg(format, ...) \
-   lowsyslog(EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
+   lowsyslog(LOG_DEBUG, EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
 # else
 #  define lldbg(x...)
 # endif
 
 # ifdef CONFIG_DEBUG_VERBOSE
 #  define vdbg(format, ...) \
-   syslog(EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
+   syslog(LOG_DEBUG, EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
 
 #  ifdef CONFIG_ARCH_LOWPUTC
 #    define llvdbg(format, ...) \
-     lowsyslog(EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
+     lowsyslog(LOG_DEBUG, EXTRA_FMT format EXTRA_ARG, ##__VA_ARGS__)
 #  else
 #    define llvdbg(x...)
 #  endif
diff --git a/include/syslog.h b/include/syslog.h
index ab0e6073c9..1773159a4c 100644
--- a/include/syslog.h
+++ b/include/syslog.h
@@ -128,12 +128,12 @@ int setlogmask(int mask);
  * following.
  */
 
-int syslog(FAR const char *format, ...);
-int vsyslog(const char *src, va_list ap);
+int syslog(int priority, FAR const char *format, ...);
+int vsyslog(int priority, FAR const char *src, va_list ap);
 
 #ifdef CONFIG_ARCH_LOWPUTC /* Non-standard */
-int lowsyslog(FAR const char *format, ...);
-int lowvsyslog(FAR const char *src, va_list ap);
+int lowsyslog(int priority, FAR const char *format, ...);
+int lowvsyslog(int priority, FAR const char *src, va_list ap);
 #endif
 
 /* Enable or disable syslog output */
diff --git a/libc/libc.csv b/libc/libc.csv
index 9b7f7ebfbb..e384e69f3a 100644
--- a/libc/libc.csv
+++ b/libc/libc.csv
@@ -65,7 +65,7 @@
 "llabs","stdlib.h","defined(CONFIG_HAVE_LONG_LONG)","long long int","long long int"
 "lldbg","debug.h","!defined(CONFIG_CPP_HAVE_VARARGS) && defined(CONFIG_DEBUG) && defined(CONFIG_ARCH_LOWPUTC)","int","const char *","..."
 "llvdbg","debug.h","!defined(CONFIG_CPP_HAVE_VARARGS) && defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_VERBOSE) && defined(CONFIG_ARCH_LOWPUTC)","int","const char *","..."
-"lowsyslog","syslog.h","","int","FAR const char *","..."
+"lowsyslog","syslog.h","","int","int","FAR const char *","..."
 "match","nuttx/regex.h","","int","const char *","const char *"
 "memccpy","string.h","","FAR void","FAR void *","FAR const void *","int c","size_t"
 "memchr","string.h","","FAR void","FAR const void *","int c","size_t"
@@ -155,7 +155,7 @@
 "strtoll","stdlib.h","defined(CONFIG_HAVE_LONG_LONG)","long long","const char *nptr","char **endptr","int base"
 "strtoul","stdlib.h","","unsigned long","const char *","char **","int"
 "strtoull","stdlib.h","defined(CONFIG_HAVE_LONG_LONG)","unsigned long long","const char *","char **","int"
-"syslog","syslog.h","","int","FAR const char *","..."
+"syslog","syslog.h","","int","int","FAR const char *","..."
 "syslog_enable","syslog.h","defined(CONFIG_SYSLOG_ENABLE)","void","bool"
 "tcflush","termios.h","CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_SERIAL_TERMIOS)","int","int","int"
 "tcgetattr","termios.h","CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_SERIAL_TERMIOS)","int","int","FAR struct termios *"
diff --git a/libc/misc/lib_dbg.c b/libc/misc/lib_dbg.c
index 921a4e24d4..41d68ef8ce 100644
--- a/libc/misc/lib_dbg.c
+++ b/libc/misc/lib_dbg.c
@@ -95,7 +95,7 @@ int dbg(const char *format, ...)
 #endif
     {
       va_start(ap, format);
-      ret = vsyslog(format, ap);
+      ret = vsyslog(LOG_DEBUG, format, ap);
       va_end(ap);
     }
 
@@ -114,7 +114,7 @@ int lldbg(const char *format, ...)
 #endif
     {
       va_start(ap, format);
-      ret = lowvsyslog(format, ap);
+      ret = lowvsyslog(LOG_DEBUG, format, ap);
       va_end(ap);
     }
 
@@ -134,7 +134,7 @@ int vdbg(const char *format, ...)
 #endif
     {
       va_start(ap, format);
-      ret = vsyslog(format, ap);
+      ret = vsyslog(LOG_DEBUG, format, ap);
       va_end(ap);
     }
 
@@ -153,7 +153,7 @@ int llvdbg(const char *format, ...)
 #endif
     {
       va_start(ap, format);
-      ret = lowvsyslog(format, ap);
+      ret = lowvsyslog(LOG_DEBUG, format, ap);
       va_end(ap);
     }
 
diff --git a/libc/misc/lib_dumpbuffer.c b/libc/misc/lib_dumpbuffer.c
index e05c0ea4de..23e7e617b8 100644
--- a/libc/misc/lib_dumpbuffer.c
+++ b/libc/misc/lib_dumpbuffer.c
@@ -47,22 +47,6 @@
  * Pre-processor definitions
  ****************************************************************************/
 
-/* Select the lowest level debug interface available */
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_ARCH_LOWPUTC
-#    define message(format, ...) lowsyslog(format, ##__VA_ARGS__)
-#  else
-#    define message(format, ...) syslog(format, ##__VA_ARGS__)
-#  endif
-#else
-#  ifdef CONFIG_ARCH_LOWPUTC
-#    define message lowsyslog
-#  else
-#    define message syslog
-#  endif
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -75,58 +59,59 @@
  *
  ****************************************************************************/
 
-void lib_dumpbuffer(FAR const char *msg, FAR const uint8_t *buffer, unsigned int buflen)
+void lib_dumpbuffer(FAR const char *msg, FAR const uint8_t *buffer,
+                    unsigned int buflen)
 {
   unsigned int i;
   unsigned int j;
   unsigned int k;
 
-  message("%s (%p):\n", msg, buffer);
+  lowsyslog(LOG_INFO, "%s (%p):\n", msg, buffer);
   for (i = 0; i < buflen; i += 32)
     {
-      message("%04x: ", i);
+      lowsyslog(LOG_INFO, "%04x: ", i);
       for (j = 0; j < 32; j++)
         {
           k = i + j;
 
           if (j == 16)
             {
-              message(" ");
+              lowsyslog(LOG_INFO, " ");
             }
 
           if (k < buflen)
             {
-              message("%02x", buffer[k]);
+              lowsyslog(LOG_INFO, "%02x", buffer[k]);
             }
           else
             {
-              message("  ");
+              lowsyslog(LOG_INFO, "  ");
             }
         }
 
-      message(" ");
+      lowsyslog(LOG_INFO, " ");
       for (j = 0; j < 32; j++)
         {
          k = i + j;
 
           if (j == 16)
             {
-              message(" ");
+              lowsyslog(LOG_INFO, " ");
             }
 
           if (k < buflen)
             {
               if (buffer[k] >= 0x20 && buffer[k] < 0x7f)
                 {
-                  message("%c", buffer[k]);
+                  lowsyslog(LOG_INFO, "%c", buffer[k]);
                 }
               else
                 {
-                  message(".");
+                  lowsyslog(LOG_INFO, ".");
                 }
             }
         }
 
-      message("\n");
+      lowsyslog(LOG_INFO, "\n");
    }
 }
diff --git a/libc/stdio/lib_lowsyslog.c b/libc/stdio/lib_lowsyslog.c
index 3ada77bf54..e35db0fae1 100644
--- a/libc/stdio/lib_lowsyslog.c
+++ b/libc/stdio/lib_lowsyslog.c
@@ -49,7 +49,7 @@
 #if !defined(CONFIG_BUILD_PROTECTED) || defined(__KERNEL__)
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -90,7 +90,7 @@
 
 #if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_SYSLOG)
 
-int lowvsyslog(FAR const char *fmt, va_list ap)
+int lowvsyslog(int priority, FAR const char *fmt, va_list ap)
 {
   struct lib_outstream_s stream;
 
@@ -108,7 +108,7 @@ int lowvsyslog(FAR const char *fmt, va_list ap)
  * Name: lowsyslog
  ****************************************************************************/
 
-int lowsyslog(FAR const char *fmt, ...)
+int lowsyslog(int priority, FAR const char *fmt, ...)
 {
   va_list ap;
   int     ret;
diff --git a/libc/stdio/lib_printf.c b/libc/stdio/lib_printf.c
index a4530daada..f9446ed716 100644
--- a/libc/stdio/lib_printf.c
+++ b/libc/stdio/lib_printf.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * libc/stdio/lib_printf.c
  *
- *   Copyright (C) 2007-2008, 2011-2012 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2008, 2011-2012, 2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -95,9 +95,9 @@ int printf(FAR const char *fmt, ...)
 #if CONFIG_NFILE_STREAMS > 0
   ret = vfprintf(stdout, fmt, ap);
 #elif CONFIG_NFILE_DESCRIPTORS > 0
-  ret = vsyslog(fmt, ap);
+  ret = vsyslog(LOG_INFO, fmt, ap);
 #elif defined(CONFIG_ARCH_LOWPUTC)
-  ret = lowvsyslog(fmt, ap);
+  ret = lowvsyslog(LOG_INFO, fmt, ap);
 #else
 # ifdef CONFIG_CPP_HAVE_WARNING
 #   warning "printf has no data sink"
diff --git a/libc/stdio/lib_syslog.c b/libc/stdio/lib_syslog.c
index 5f09582626..97465d51b9 100644
--- a/libc/stdio/lib_syslog.c
+++ b/libc/stdio/lib_syslog.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * libc/stdio/lib_syslog.c
  *
- *   Copyright (C) 2007-2009, 2011-2013 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2009, 2011-2014 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -91,7 +91,7 @@
  * Name: vsyslog
  ****************************************************************************/
 
-int vsyslog(FAR const char *fmt, va_list ap)
+int vsyslog(int priority, FAR const char *fmt, va_list ap)
 {
 #if defined(CONFIG_SYSLOG)
 
@@ -135,7 +135,7 @@ int vsyslog(FAR const char *fmt, va_list ap)
  * Name: syslog
  ****************************************************************************/
 
-int syslog(FAR const char *fmt, ...)
+int syslog(int priority, FAR const char *fmt, ...)
 {
   va_list ap;
   int     ret;