diff --git a/scripts/kernel-doc b/scripts/kernel-doc
new file mode 100755
index 0000000..8b1dab6
--- /dev/null
+++ b/scripts/kernel-doc
@@ -0,0 +1,1831 @@
+#!/usr/bin/perl -w
+
+use strict;
+
+## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
+## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
+## Copyright (C) 2001  Simon Huggins                             ##
+## 								 ##
+## #define enhancements by Armin Kuster <akuster@mvista.com>	 ##
+## Copyright (c) 2000 MontaVista Software, Inc.			 ##
+## 								 ##
+## This software falls under the GNU General Public License.     ##
+## Please read the COPYING file for more information             ##
+
+# w.o. 03-11-2000: added the '-filelist' option.
+
+# 18/01/2001 - 	Cleanups
+# 		Functions prototyped as foo(void) same as foo()
+# 		Stop eval'ing where we don't need to.
+# -- huggie@earth.li
+
+# 27/06/2001 -  Allowed whitespace after initial "/**" and
+#               allowed comments before function declarations.
+# -- Christian Kreibich <ck@whoop.org>
+
+# Still to do:
+# 	- add perldoc documentation
+# 	- Look more closely at some of the scarier bits :)
+
+# 26/05/2001 - 	Support for separate source and object trees.
+#		Return error code.
+# 		Keith Owens <kaos@ocs.com.au>
+
+# 23/09/2001 - Added support for typedefs, structs, enums and unions
+#              Support for Context section; can be terminated using empty line
+#              Small fixes (like spaces vs. \s in regex)
+# -- Tim Jansen <tim@tjansen.de>
+
+
+#
+# This will read a 'c' file and scan for embedded comments in the
+# style of gnome comments (+minor extensions - see below).
+#
+
+# Note: This only supports 'c'.
+
+# usage:
+# kerneldoc [ -docbook | -html | -text | -man ]
+#           [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
+# or
+#           [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
+#
+#  Set output format using one of -docbook -html -text or -man.  Default is man.
+#
+#  -function funcname
+#	If set, then only generate documentation for the given function(s).  All
+#	other functions are ignored.
+#
+#  -nofunction funcname
+#	If set, then only generate documentation for the other function(s).  All
+#	other functions are ignored. Cannot be used with -function together
+#	(yes thats a bug - perl hackers can fix it 8))
+#
+#  c files - list of 'c' files to process
+#
+#  All output goes to stdout, with errors to stderr.
+
+#
+# format of comments.
+# In the following table, (...)? signifies optional structure.
+#                         (...)* signifies 0 or more structure elements
+# /**
+#  * function_name(:)? (- short description)?
+# (* @parameterx: (description of parameter x)?)*
+# (* a blank line)?
+#  * (Description:)? (Description of function)?
+#  * (section header: (section description)? )*
+#  (*)?*/
+#
+# So .. the trivial example would be:
+#
+# /**
+#  * my_function
+#  **/
+#
+# If the Description: header tag is ommitted, then there must be a blank line
+# after the last parameter specification.
+# e.g.
+# /**
+#  * my_function - does my stuff
+#  * @my_arg: its mine damnit
+#  *
+#  * Does my stuff explained. 
+#  */
+#
+#  or, could also use:
+# /**
+#  * my_function - does my stuff
+#  * @my_arg: its mine damnit
+#  * Description: Does my stuff explained. 
+#  */
+# etc.
+#
+# Beside functions you can also write documentation for structs, unions, 
+# enums and typedefs. Instead of the function name you must write the name 
+# of the declaration;  the struct/union/enum/typedef must always precede 
+# the name. Nesting of declarations is not supported. 
+# Use the argument mechanism to document members or constants.
+# e.g.
+# /**
+#  * struct my_struct - short description
+#  * @a: first member
+#  * @b: second member
+#  * 
+#  * Longer description
+#  */
+# struct my_struct {
+#     int a;
+#     int b;
+# };
+#
+# All descriptions can be multiline, except the short function description.
+# 
+# You can also add additional sections. When documenting kernel functions you 
+# should document the "Context:" of the function, e.g. whether the functions 
+# can be called form interrupts. Unlike other sections you can end it with an
+# empty line. 
+# Example-sections should contain the string EXAMPLE so that they are marked 
+# appropriately in DocBook.
+#
+# Example:
+# /**
+#  * user_function - function that can only be called in user context
+#  * @a: some argument
+#  * Context: !in_interrupt()
+#  * 
+#  * Some description
+#  * Example:
+#  *    user_function(22);
+#  */
+# ...
+#
+#
+# All descriptive text is further processed, scanning for the following special
+# patterns, which are highlighted appropriately.
+#
+# 'funcname()' - function
+# '$ENVVAR' - environmental variable
+# '&struct_name' - name of a structure (up to two words including 'struct')
+# '@parameter' - name of a parameter
+# '%CONST' - name of a constant.
+
+my $errors = 0;
+my $warnings = 0;
+
+# match expressions used to find embedded type information
+my $type_constant = '\%([-_\w]+)';
+my $type_func = '(\w+)\(\)';
+my $type_param = '\@(\w+)';
+my $type_struct = '\&((struct\s*)?[_\w]+)';
+my $type_env = '(\$\w+)';
+
+# Output conversion substitutions.
+#  One for each output format
+
+# these work fairly well
+my %highlights_html = ( $type_constant, "<i>\$1</i>",
+			$type_func, "<b>\$1</b>",
+			$type_struct, "<i>\$1</i>",
+			$type_param, "<tt><b>\$1</b></tt>" );
+my $blankline_html = "<p>";
+
+# XML, docbook format
+my %highlights_xml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
+			$type_constant, "<constant>\$1</constant>",
+			$type_func, "<function>\$1</function>",
+			$type_struct, "<structname>\$1</structname>",
+			$type_env, "<envar>\$1</envar>",
+			$type_param, "<parameter>\$1</parameter>" );
+my $blankline_xml = "</para><para>\n";
+
+# gnome, docbook format
+my %highlights_gnome = ( $type_constant, "<replaceable class=\"option\">\$1</replaceable>",
+			 $type_func, "<function>\$1</function>",
+			 $type_struct, "<structname>\$1</structname>",
+			 $type_env, "<envar>\$1</envar>",
+			 $type_param, "<parameter>\$1</parameter>" );
+my $blankline_gnome = "</para><para>\n";
+
+# these are pretty rough
+my %highlights_man = ( $type_constant, "\$1",
+		       $type_func, "\\\\fB\$1\\\\fP",
+		       $type_struct, "\\\\fI\$1\\\\fP",
+		       $type_param, "\\\\fI\$1\\\\fP" );
+my $blankline_man = "";
+
+# text-mode
+my %highlights_text = ( $type_constant, "\$1",
+			$type_func, "\$1",
+			$type_struct, "\$1",
+			$type_param, "\$1" );
+my $blankline_text = "";
+
+
+sub usage {
+    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ]\n";
+    print "         [ -function funcname [ -function funcname ...] ]\n";
+    print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
+    print "         c source file(s) > outputfile\n";
+    exit 1;
+}
+
+# read arguments
+if ($#ARGV==-1) {
+    usage();
+}
+
+my $verbose = 0;
+my $output_mode = "man";
+my %highlights = %highlights_man;
+my $blankline = $blankline_man;
+my $modulename = "Kernel API";
+my $function_only = 0;
+my $man_date = ('January', 'February', 'March', 'April', 'May', 'June', 
+		'July', 'August', 'September', 'October', 
+		'November', 'December')[(localtime)[4]] . 
+  " " . ((localtime)[5]+1900);
+
+# Essentially these are globals
+# They probably want to be tidied up made more localised or summat.
+# CAVEAT EMPTOR!  Some of the others I localised may not want to be which
+# could cause "use of undefined value" or other bugs.
+my ($function, %function_table,%parametertypes,$declaration_purpose);
+my ($type,$declaration_name,$return_type);
+my ($newsection,$newcontents,$prototype,$filelist, $brcount, %source_map);
+
+# Generated docbook code is inserted in a template at a point where 
+# docbook v3.1 requires a non-zero sequence of RefEntry's; see:
+# http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
+# We keep track of number of generated entries and generate a dummy
+# if needs be to ensure the expanded template can be postprocessed
+# into html.
+my $section_counter = 0;
+
+my $lineprefix="";
+
+# states
+# 0 - normal code
+# 1 - looking for function name
+# 2 - scanning field start.
+# 3 - scanning prototype.
+# 4 - documentation block
+my $state;
+
+#declaration types: can be
+# 'function', 'struct', 'union', 'enum', 'typedef'
+my $decl_type;
+
+my $doc_special = "\@\%\$\&";
+
+my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
+my $doc_end = '\*/';
+my $doc_com = '\s*\*\s*';
+my $doc_decl = $doc_com.'(\w+)';
+my $doc_sect = $doc_com.'(['.$doc_special.']?[\w ]+):(.*)';
+my $doc_content = $doc_com.'(.*)';
+my $doc_block = $doc_com.'DOC:\s*(.*)?';
+
+my %constants;
+my %parameterdescs;
+my @parameterlist;
+my %sections;
+my @sectionlist;
+
+my $contents = "";
+my $section_default = "Description";	# default section
+my $section_intro = "Introduction";
+my $section = $section_default;
+my $section_context = "Context";
+
+my $undescribed = "-- undescribed --";
+
+reset_state();
+
+while ($ARGV[0] =~ m/^-(.*)/) {
+    my $cmd = shift @ARGV;
+    if ($cmd eq "-html") {
+	$output_mode = "html";
+	%highlights = %highlights_html;
+	$blankline = $blankline_html;
+    } elsif ($cmd eq "-man") {
+	$output_mode = "man";
+	%highlights = %highlights_man;
+	$blankline = $blankline_man;
+    } elsif ($cmd eq "-text") {
+	$output_mode = "text";
+	%highlights = %highlights_text;
+	$blankline = $blankline_text;
+    } elsif ($cmd eq "-docbook") {
+	$output_mode = "xml";
+	%highlights = %highlights_xml;
+	$blankline = $blankline_xml;
+    } elsif ($cmd eq "-gnome") {
+	$output_mode = "gnome";
+	%highlights = %highlights_gnome;
+	$blankline = $blankline_gnome;
+    } elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
+	$modulename = shift @ARGV;
+    } elsif ($cmd eq "-function") { # to only output specific functions
+	$function_only = 1;
+	$function = shift @ARGV;
+	$function_table{$function} = 1;
+    } elsif ($cmd eq "-nofunction") { # to only output specific functions
+	$function_only = 2;
+	$function = shift @ARGV;
+	$function_table{$function} = 1;
+    } elsif ($cmd eq "-v") {
+	$verbose = 1;
+    } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
+	usage();
+    } elsif ($cmd eq '-filelist') {
+	    $filelist = shift @ARGV;
+    }
+}
+
+
+# generate a sequence of code that will splice in highlighting information
+# using the s// operator.
+my $dohighlight = "";
+foreach my $pattern (keys %highlights) {
+#    print "scanning pattern $pattern ($highlights{$pattern})\n";
+    $dohighlight .=  "\$contents =~ s:$pattern:$highlights{$pattern}:gs;\n";
+}
+
+##
+# dumps section contents to arrays/hashes intended for that purpose.
+#
+sub dump_section {
+    my $name = shift;
+    my $contents = join "\n", @_;
+
+    if ($name =~ m/$type_constant/) {
+	$name = $1;
+#	print STDERR "constant section '$1' = '$contents'\n";
+	$constants{$name} = $contents;
+    } elsif ($name =~ m/$type_param/) {
+#	print STDERR "parameter def '$1' = '$contents'\n";
+	$name = $1;
+	$parameterdescs{$name} = $contents;
+    } else {
+#	print STDERR "other section '$name' = '$contents'\n";
+	$sections{$name} = $contents;
+	push @sectionlist, $name;
+    }
+}
+
+##
+# output function
+#
+# parameterdescs, a hash.
+#  function => "function name"
+#  parameterlist => @list of parameters
+#  parameterdescs => %parameter descriptions
+#  sectionlist => @list of sections
+#  sections => %descriont descriptions
+#  
+
+sub output_highlight {
+    my $contents = join "\n",@_;
+    my $line;
+
+#   DEBUG
+#   if (!defined $contents) {
+#	use Carp;
+#	confess "output_highlight got called with no args?\n";
+#   }
+
+    eval $dohighlight;
+    die $@ if $@;
+    foreach $line (split "\n", $contents) {
+      if ($line eq ""){
+	    print $lineprefix, $blankline;
+	} else {
+            $line =~ s/\\\\\\/\&/g;
+	    print $lineprefix, $line;
+	}
+	print "\n";
+    }
+}
+
+#output sections in html
+sub output_section_html(%) {
+    my %args = %{$_[0]};
+    my $section;
+
+    foreach $section (@{$args{'sectionlist'}}) {
+	print "<h3>$section</h3>\n";
+	print "<blockquote>\n";
+	output_highlight($args{'sections'}{$section});
+	print "</blockquote>\n";
+    }  
+}
+
+# output enum in html
+sub output_enum_html(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+    my $count;
+    print "<h2>enum ".$args{'enum'}."</h2>\n";
+
+    print "<b>enum ".$args{'enum'}."</b> {<br>\n";
+    $count = 0;
+    foreach $parameter (@{$args{'parameterlist'}}) {
+        print " <b>".$parameter."</b>";
+	if ($count != $#{$args{'parameterlist'}}) {
+	    $count++;
+	    print ",\n";
+	}
+	print "<br>";
+    }
+    print "};<br>\n";
+
+    print "<h3>Constants</h3>\n";
+    print "<dl>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	print "<dt><b>".$parameter."</b>\n";
+	print "<dd>";
+	output_highlight($args{'parameterdescs'}{$parameter});
+    }
+    print "</dl>\n";
+    output_section_html(@_);
+    print "<hr>\n";
+}
+
+# output tyepdef in html
+sub output_typedef_html(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+    my $count;
+    print "<h2>typedef ".$args{'typedef'}."</h2>\n";
+
+    print "<b>typedef ".$args{'typedef'}."</b>\n";
+    output_section_html(@_);
+    print "<hr>\n";
+}
+
+# output struct in html
+sub output_struct_html(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+
+    print "<h2>".$args{'type'}." ".$args{'struct'}."</h2>\n";
+    print "<b>".$args{'type'}." ".$args{'struct'}."</b> {<br>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	if ($parameter =~ /^#/) {
+		print "$parameter<br>\n";
+		next;
+	}
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	$type = $args{'parametertypes'}{$parameter};
+	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	    # pointer-to-function
+	    print " <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
+	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
+	    print " <i>$1</i> <b>$parameter</b>$2;<br>\n";
+	} else {
+	    print " <i>$type</i> <b>$parameter</b>;<br>\n";
+	}
+    }
+    print "};<br>\n";
+
+    print "<h3>Members</h3>\n";
+    print "<dl>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	($parameter =~ /^#/) && next;
+
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	print "<dt><b>".$parameter."</b>\n";
+	print "<dd>";
+	output_highlight($args{'parameterdescs'}{$parameter_name});
+    }
+    print "</dl>\n";
+    output_section_html(@_);
+    print "<hr>\n";
+}
+
+# output function in html
+sub output_function_html(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+    print "<h2>Function</h2>\n";
+
+    print "<i>".$args{'functiontype'}."</i>\n";
+    print "<b>".$args{'function'}."</b>\n";
+    print "(";
+    $count = 0;
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	$type = $args{'parametertypes'}{$parameter};
+	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	    # pointer-to-function
+	    print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
+	} else {
+	    print "<i>".$type."</i> <b>".$parameter."</b>";
+	}
+	if ($count != $#{$args{'parameterlist'}}) {
+	    $count++;
+	    print ",\n";
+	}
+    }
+    print ")\n";
+
+    print "<h3>Arguments</h3>\n";
+    print "<dl>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	print "<dt><b>".$parameter."</b>\n";
+	print "<dd>";
+	output_highlight($args{'parameterdescs'}{$parameter_name});
+    }
+    print "</dl>\n";
+    output_section_html(@_);
+    print "<hr>\n";
+}
+
+# output intro in html
+sub output_intro_html(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+
+    foreach $section (@{$args{'sectionlist'}}) {
+	print "<h3>$section</h3>\n";
+	print "<ul>\n";
+	output_highlight($args{'sections'}{$section});
+	print "</ul>\n";
+    }
+    print "<hr>\n";
+}
+
+sub output_section_xml(%) {
+    my %args = %{$_[0]};
+    my $section;    
+    # print out each section
+    $lineprefix="   ";
+    foreach $section (@{$args{'sectionlist'}}) {
+	print "<refsect1>\n <title>$section</title>\n <para>\n";
+	if ($section =~ m/EXAMPLE/i) {
+	    print "<example><para>\n";
+	}
+	output_highlight($args{'sections'}{$section});
+	if ($section =~ m/EXAMPLE/i) {
+	    print "</para></example>\n";
+	}
+	print " </para>\n</refsect1>\n";
+    }
+}
+
+# output function in XML DocBook
+sub output_function_xml(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+    my $id;
+
+    $id = "API-".$args{'function'};
+    $id =~ s/[^A-Za-z0-9]/-/g;
+
+    print "<refentry>\n";
+    print "<refmeta>\n";
+    print "<refentrytitle><phrase id=\"$id\">".$args{'function'}."</phrase></refentrytitle>\n";
+    print "</refmeta>\n";
+    print "<refnamediv>\n";
+    print " <refname>".$args{'function'}."</refname>\n";
+    print " <refpurpose>\n";
+    print "  ";
+    output_highlight ($args{'purpose'});
+    print " </refpurpose>\n";
+    print "</refnamediv>\n";
+
+    print "<refsynopsisdiv>\n";
+    print " <title>Synopsis</title>\n";
+    print "  <funcsynopsis><funcprototype>\n";
+    print "   <funcdef>".$args{'functiontype'}." ";
+    print "<function>".$args{'function'}." </function></funcdef>\n";
+
+    $count = 0;
+    if ($#{$args{'parameterlist'}} >= 0) {
+	foreach $parameter (@{$args{'parameterlist'}}) {
+	    $type = $args{'parametertypes'}{$parameter};
+	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+		# pointer-to-function
+		print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
+		print "     <funcparams>$2</funcparams></paramdef>\n";
+	    } else {
+		print "   <paramdef>".$type;
+		print " <parameter>$parameter</parameter></paramdef>\n";
+	    }
+	}
+    } else {
+	print "  <void>\n";
+    }
+    print "  </funcprototype></funcsynopsis>\n";
+    print "</refsynopsisdiv>\n";
+
+    # print parameters
+    print "<refsect1>\n <title>Arguments</title>\n";
+    if ($#{$args{'parameterlist'}} >= 0) {
+	print " <variablelist>\n";
+	foreach $parameter (@{$args{'parameterlist'}}) {
+	    my $parameter_name = $parameter;
+	    $parameter_name =~ s/\[.*//;
+
+	    print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
+	    print "   <listitem>\n    <para>\n";
+	    $lineprefix="     ";
+	    output_highlight($args{'parameterdescs'}{$parameter_name});
+	    print "    </para>\n   </listitem>\n  </varlistentry>\n";
+	}
+	print " </variablelist>\n";
+    } else {
+	print " <para>\n  None\n </para>\n";
+    }
+    print "</refsect1>\n";
+
+    output_section_xml(@_);
+    print "</refentry>\n\n";
+}
+
+# output struct in XML DocBook
+sub output_struct_xml(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $id;
+
+    $id = "API-struct-".$args{'struct'};
+    $id =~ s/[^A-Za-z0-9]/-/g;
+
+    print "<refentry>\n";
+    print "<refmeta>\n";
+    print "<refentrytitle><phrase id=\"$id\">".$args{'type'}." ".$args{'struct'}."</phrase></refentrytitle>\n";
+    print "</refmeta>\n";
+    print "<refnamediv>\n";
+    print " <refname>".$args{'type'}." ".$args{'struct'}."</refname>\n";
+    print " <refpurpose>\n";
+    print "  ";
+    output_highlight ($args{'purpose'});
+    print " </refpurpose>\n";
+    print "</refnamediv>\n";
+
+    print "<refsynopsisdiv>\n";
+    print " <title>Synopsis</title>\n";
+    print "  <programlisting>\n";
+    print $args{'type'}." ".$args{'struct'}." {\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	if ($parameter =~ /^#/) {
+	    print "$parameter\n";
+	    next;
+	}
+
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+	defined($args{'parameterdescs'}{$parameter_name}) || next;
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	$type = $args{'parametertypes'}{$parameter};
+	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	    # pointer-to-function
+	    print "  $1 $parameter) ($2);\n";
+	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
+	    print "  $1 $parameter$2;\n";
+	} else {
+	    print "  ".$type." ".$parameter.";\n";
+	}
+    }
+    print "};";
+    print "  </programlisting>\n";
+    print "</refsynopsisdiv>\n";
+
+    print " <refsect1>\n";
+    print "  <title>Members</title>\n";
+
+    print "  <variablelist>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+      ($parameter =~ /^#/) && next;
+
+      my $parameter_name = $parameter;
+      $parameter_name =~ s/\[.*//;
+
+      defined($args{'parameterdescs'}{$parameter_name}) || next;
+      ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+      print "    <varlistentry>";
+      print "      <term>$parameter</term>\n";
+      print "      <listitem><para>\n";
+      output_highlight($args{'parameterdescs'}{$parameter_name});
+      print "      </para></listitem>\n";
+      print "    </varlistentry>\n";
+    }
+    print "  </variablelist>\n";
+    print " </refsect1>\n";
+
+    output_section_xml(@_);
+
+    print "</refentry>\n\n";
+}
+
+# output enum in XML DocBook
+sub output_enum_xml(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+    my $id;
+
+    $id = "API-enum-".$args{'enum'};
+    $id =~ s/[^A-Za-z0-9]/-/g;
+
+    print "<refentry>\n";
+    print "<refmeta>\n";
+    print "<refentrytitle><phrase id=\"$id\">enum ".$args{'enum'}."</phrase></refentrytitle>\n";
+    print "</refmeta>\n";
+    print "<refnamediv>\n";
+    print " <refname>enum ".$args{'enum'}."</refname>\n";
+    print " <refpurpose>\n";
+    print "  ";
+    output_highlight ($args{'purpose'});
+    print " </refpurpose>\n";
+    print "</refnamediv>\n";
+
+    print "<refsynopsisdiv>\n";
+    print " <title>Synopsis</title>\n";
+    print "  <programlisting>\n";
+    print "enum ".$args{'enum'}." {\n";
+    $count = 0;
+    foreach $parameter (@{$args{'parameterlist'}}) {
+        print "  $parameter";
+        if ($count != $#{$args{'parameterlist'}}) {
+	    $count++;
+	    print ",";
+        }
+	print "\n";
+    }
+    print "};";
+    print "  </programlisting>\n";
+    print "</refsynopsisdiv>\n";
+
+    print "<refsect1>\n";
+    print " <title>Constants</title>\n";    
+    print "  <variablelist>\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+      my $parameter_name = $parameter;
+      $parameter_name =~ s/\[.*//;
+
+      print "    <varlistentry>";
+      print "      <term>$parameter</term>\n";
+      print "      <listitem><para>\n";
+      output_highlight($args{'parameterdescs'}{$parameter_name});
+      print "      </para></listitem>\n";
+      print "    </varlistentry>\n";
+    }
+    print "  </variablelist>\n";
+    print "</refsect1>\n";
+
+    output_section_xml(@_);
+
+    print "</refentry>\n\n";
+}
+
+# output typedef in XML DocBook
+sub output_typedef_xml(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $id;
+
+    $id = "API-typedef-".$args{'typedef'};
+    $id =~ s/[^A-Za-z0-9]/-/g;
+
+    print "<refentry>\n";
+    print "<refmeta>\n";
+    print "<refentrytitle><phrase id=\"$id\">typedef ".$args{'typedef'}."</phrase></refentrytitle>\n";
+    print "</refmeta>\n";
+    print "<refnamediv>\n";
+    print " <refname>typedef ".$args{'typedef'}."</refname>\n";
+    print " <refpurpose>\n";
+    print "  ";
+    output_highlight ($args{'purpose'});
+    print " </refpurpose>\n";
+    print "</refnamediv>\n";
+
+    print "<refsynopsisdiv>\n";
+    print " <title>Synopsis</title>\n";
+    print "  <synopsis>typedef ".$args{'typedef'}.";</synopsis>\n";
+    print "</refsynopsisdiv>\n";
+
+    output_section_xml(@_);
+
+    print "</refentry>\n\n";
+}
+
+# output in XML DocBook
+sub output_intro_xml(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+
+    my $id = $args{'module'};
+    $id =~ s/[^A-Za-z0-9]/-/g;
+
+    # print out each section
+    $lineprefix="   ";
+    foreach $section (@{$args{'sectionlist'}}) {
+	print "<refsect1>\n <title>$section</title>\n <para>\n";
+	if ($section =~ m/EXAMPLE/i) {
+	    print "<example><para>\n";
+	}
+	output_highlight($args{'sections'}{$section});
+	if ($section =~ m/EXAMPLE/i) {
+	    print "</para></example>\n";
+	}
+	print " </para>\n</refsect1>\n";
+    }
+
+    print "\n\n";
+}
+
+# output in XML DocBook
+sub output_function_gnome {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+    my $id;
+
+    $id = $args{'module'}."-".$args{'function'};
+    $id =~ s/[^A-Za-z0-9]/-/g;
+
+    print "<sect2>\n";
+    print " <title id=\"$id\">".$args{'function'}."</title>\n";
+
+    print "  <funcsynopsis>\n";
+    print "   <funcdef>".$args{'functiontype'}." ";
+    print "<function>".$args{'function'}." ";
+    print "</function></funcdef>\n";
+
+    $count = 0;
+    if ($#{$args{'parameterlist'}} >= 0) {
+	foreach $parameter (@{$args{'parameterlist'}}) {
+	    $type = $args{'parametertypes'}{$parameter};
+	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+		# pointer-to-function
+		print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
+		print "     <funcparams>$2</funcparams></paramdef>\n";
+	    } else {
+		print "   <paramdef>".$type;
+		print " <parameter>$parameter</parameter></paramdef>\n";
+	    }
+	}
+    } else {
+	print "  <void>\n";
+    }
+    print "  </funcsynopsis>\n";
+    if ($#{$args{'parameterlist'}} >= 0) {
+	print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
+	print "<tgroup cols=\"2\">\n";
+	print "<colspec colwidth=\"2*\">\n";
+	print "<colspec colwidth=\"8*\">\n";
+	print "<tbody>\n";
+	foreach $parameter (@{$args{'parameterlist'}}) {
+	    my $parameter_name = $parameter;
+	    $parameter_name =~ s/\[.*//;
+
+	    print "  <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
+	    print "   <entry>\n";
+	    $lineprefix="     ";
+	    output_highlight($args{'parameterdescs'}{$parameter_name});
+	    print "    </entry></row>\n";
+	}
+	print " </tbody></tgroup></informaltable>\n";
+    } else {
+	print " <para>\n  None\n </para>\n";
+    }
+
+    # print out each section
+    $lineprefix="   ";
+    foreach $section (@{$args{'sectionlist'}}) {
+	print "<simplesect>\n <title>$section</title>\n";
+	if ($section =~ m/EXAMPLE/i) {
+	    print "<example><programlisting>\n";
+	} else {
+	}
+	print "<para>\n";
+	output_highlight($args{'sections'}{$section});
+	print "</para>\n";
+	if ($section =~ m/EXAMPLE/i) {
+	    print "</programlisting></example>\n";
+	} else {
+	}
+	print " </simplesect>\n";
+    }
+
+    print "</sect2>\n\n";
+}
+
+##
+# output function in man
+sub output_function_man(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+
+    print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
+
+    print ".SH NAME\n";
+    print $args{'function'}." \\- ".$args{'purpose'}."\n";
+
+    print ".SH SYNOPSIS\n";
+    print ".B \"".$args{'functiontype'}."\" ".$args{'function'}."\n";
+    $count = 0;
+    my $parenth = "(";
+    my $post = ",";
+    foreach my $parameter (@{$args{'parameterlist'}}) {
+	if ($count == $#{$args{'parameterlist'}}) {
+	    $post = ");";
+	}
+	$type = $args{'parametertypes'}{$parameter};
+	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	    # pointer-to-function
+	    print ".BI \"".$parenth.$1."\" ".$parameter." \") (".$2.")".$post."\"\n";
+	} else {
+	    $type =~ s/([^\*])$/$1 /;
+	    print ".BI \"".$parenth.$type."\" ".$parameter." \"".$post."\"\n";
+	}
+	$count++;
+	$parenth = "";
+    }
+
+    print ".SH ARGUMENTS\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+	print ".IP \"".$parameter."\" 12\n";
+	output_highlight($args{'parameterdescs'}{$parameter_name});
+    }
+    foreach $section (@{$args{'sectionlist'}}) {
+	print ".SH \"", uc $section, "\"\n";
+	output_highlight($args{'sections'}{$section});
+    }
+}
+
+##
+# output enum in man
+sub output_enum_man(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+
+    print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
+
+    print ".SH NAME\n";
+    print "enum ".$args{'enum'}." \\- ".$args{'purpose'}."\n";
+
+    print ".SH SYNOPSIS\n";
+    print "enum ".$args{'enum'}." {\n";
+    $count = 0;
+    foreach my $parameter (@{$args{'parameterlist'}}) {
+        print ".br\n.BI \"    $parameter\"\n";
+	if ($count == $#{$args{'parameterlist'}}) {
+	    print "\n};\n";
+	    last;
+	}
+	else {
+	    print ", \n.br\n";
+	}
+	$count++;
+    }
+
+    print ".SH Constants\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+	print ".IP \"".$parameter."\" 12\n";
+	output_highlight($args{'parameterdescs'}{$parameter_name});
+    }
+    foreach $section (@{$args{'sectionlist'}}) {
+	print ".SH \"$section\"\n";
+	output_highlight($args{'sections'}{$section});
+    }
+}
+
+##
+# output struct in man
+sub output_struct_man(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+
+    print ".TH \"$args{'module'}\" 9 \"".$args{'type'}." ".$args{'struct'}."\" \"$man_date\" \"API Manual\" LINUX\n";
+
+    print ".SH NAME\n";
+    print $args{'type'}." ".$args{'struct'}." \\- ".$args{'purpose'}."\n";
+
+    print ".SH SYNOPSIS\n";
+    print $args{'type'}." ".$args{'struct'}." {\n.br\n";
+
+    foreach my $parameter (@{$args{'parameterlist'}}) {
+	if ($parameter =~ /^#/) {
+	    print ".BI \"$parameter\"\n.br\n";
+	    next;
+	}
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	$type = $args{'parametertypes'}{$parameter};
+	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	    # pointer-to-function
+	    print ".BI \"    ".$1."\" ".$parameter." \") (".$2.")"."\"\n;\n";
+	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
+	    print ".BI \"    ".$1."\" ".$parameter.$2." \""."\"\n;\n";
+	} else {
+	    $type =~ s/([^\*])$/$1 /;
+	    print ".BI \"    ".$type."\" ".$parameter." \""."\"\n;\n";
+	}
+	print "\n.br\n";
+    }
+    print "};\n.br\n";
+
+    print ".SH Arguments\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	($parameter =~ /^#/) && next;
+
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	print ".IP \"".$parameter."\" 12\n";
+	output_highlight($args{'parameterdescs'}{$parameter_name});
+    }
+    foreach $section (@{$args{'sectionlist'}}) {
+	print ".SH \"$section\"\n";
+	output_highlight($args{'sections'}{$section});
+    }
+}
+
+##
+# output typedef in man
+sub output_typedef_man(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+
+    print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
+
+    print ".SH NAME\n";
+    print "typedef ".$args{'typedef'}." \\- ".$args{'purpose'}."\n";
+
+    foreach $section (@{$args{'sectionlist'}}) {
+	print ".SH \"$section\"\n";
+	output_highlight($args{'sections'}{$section});
+    }
+}
+
+sub output_intro_man(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+    my $count;
+
+    print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
+
+    foreach $section (@{$args{'sectionlist'}}) {
+	print ".SH \"$section\"\n";
+	output_highlight($args{'sections'}{$section});
+    }
+}
+
+##
+# output in text
+sub output_function_text(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+
+    print "Function:\n\n";
+    my $start=$args{'functiontype'}." ".$args{'function'}." (";
+    print $start;
+    my $count = 0;
+    foreach my $parameter (@{$args{'parameterlist'}}) {
+	$type = $args{'parametertypes'}{$parameter};
+	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	    # pointer-to-function
+	    print $1.$parameter.") (".$2;
+	} else {
+	    print $type." ".$parameter;
+	}
+	if ($count != $#{$args{'parameterlist'}}) {
+	    $count++;
+	    print ",\n";
+	    print " " x length($start);
+	} else {
+	    print ");\n\n";
+	}
+    }
+
+    print "Arguments:\n\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+	print $parameter."\n\t".$args{'parameterdescs'}{$parameter_name}."\n";
+    }
+    output_section_text(@_);
+}
+
+#output sections in text
+sub output_section_text(%) {
+    my %args = %{$_[0]};
+    my $section;
+
+    print "\n";
+    foreach $section (@{$args{'sectionlist'}}) {
+	print "$section:\n\n";
+	output_highlight($args{'sections'}{$section});
+    }  
+    print "\n\n";
+}
+
+# output enum in text
+sub output_enum_text(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+    my $count;
+    print "Enum:\n\n";
+
+    print "enum ".$args{'enum'}." {\n";
+    $count = 0;
+    foreach $parameter (@{$args{'parameterlist'}}) {
+        print "\t$parameter";
+	if ($count != $#{$args{'parameterlist'}}) {
+	    $count++;
+	    print ",";
+	}
+	print "\n";
+    }
+    print "};\n\n";
+
+    print "Constants:\n\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	print "$parameter\n\t";
+	print $args{'parameterdescs'}{$parameter}."\n";
+    }
+
+    output_section_text(@_);
+}
+
+# output typedef in text
+sub output_typedef_text(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+    my $count;
+    print "Typedef:\n\n";
+
+    print "typedef ".$args{'typedef'}."\n";
+    output_section_text(@_);
+}
+
+# output struct as text
+sub output_struct_text(%) {
+    my %args = %{$_[0]};
+    my ($parameter);
+
+    print $args{'type'}." ".$args{'struct'}.":\n\n";
+    print $args{'type'}." ".$args{'struct'}." {\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	if ($parameter =~ /^#/) {
+	    print "$parameter\n";
+	    next;
+	}
+
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	$type = $args{'parametertypes'}{$parameter};
+	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	    # pointer-to-function
+	    print "\t$1 $parameter) ($2);\n";
+	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
+	    print "\t$1 $parameter$2;\n";
+	} else {
+	    print "\t".$type." ".$parameter.";\n";
+	}
+    }
+    print "};\n\n";
+
+    print "Members:\n\n";
+    foreach $parameter (@{$args{'parameterlist'}}) {
+	($parameter =~ /^#/) && next;
+
+	my $parameter_name = $parameter;
+	$parameter_name =~ s/\[.*//;
+
+        ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
+	print "$parameter\n\t";
+	print $args{'parameterdescs'}{$parameter_name}."\n";
+    }
+    print "\n";
+    output_section_text(@_);
+}
+
+sub output_intro_text(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+
+    foreach $section (@{$args{'sectionlist'}}) {
+	print " $section:\n";
+	print "    -> ";
+	output_highlight($args{'sections'}{$section});
+    }
+}
+
+##
+# generic output function for typedefs
+sub output_declaration {
+    no strict 'refs';
+    my $name = shift;
+    my $functype = shift;
+    my $func = "output_${functype}_$output_mode";
+    if (($function_only==0) || 
+	( $function_only == 1 && defined($function_table{$name})) || 
+	( $function_only == 2 && !defined($function_table{$name})))
+    {
+        &$func(@_);
+	$section_counter++;
+    }
+}
+
+##
+# generic output function - calls the right one based
+# on current output mode.
+sub output_intro {
+    no strict 'refs';
+    my $func = "output_intro_".$output_mode;
+    &$func(@_);
+    $section_counter++;
+}
+
+##
+# takes a declaration (struct, union, enum, typedef) and 
+# invokes the right handler. NOT called for functions.
+sub dump_declaration($$) {
+    no strict 'refs';
+    my ($prototype, $file) = @_;
+    my $func = "dump_".$decl_type;
+    &$func(@_);
+}
+
+sub dump_union($$) {
+    dump_struct(@_);
+}
+
+sub dump_struct($$) {
+    my $x = shift;
+    my $file = shift;
+
+    if ($x =~/(struct|union)\s+(\w+)\s*{(.*)}/) {
+        $declaration_name = $2;
+        my $members = $3;
+
+	# ignore embedded structs or unions
+	$members =~ s/{.*?}//g;
+
+	create_parameterlist($members, ';', $file);
+
+	output_declaration($declaration_name,
+			   'struct',
+			   {'struct' => $declaration_name,
+			    'module' => $modulename,
+			    'parameterlist' => \@parameterlist,
+			    'parameterdescs' => \%parameterdescs,
+			    'parametertypes' => \%parametertypes,
+			    'sectionlist' => \@sectionlist,
+			    'sections' => \%sections,
+			    'purpose' => $declaration_purpose,
+			    'type' => $decl_type
+			   });
+    }
+    else {
+        print STDERR "Error(${file}:$.): Cannot parse struct or union!\n";
+	++$errors;
+    }
+}
+
+sub dump_enum($$) {
+    my $x = shift;
+    my $file = shift;
+
+    if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
+        $declaration_name = $1;
+        my $members = $2;
+
+	foreach my $arg (split ',', $members) {
+	    $arg =~ s/^\s*(\w+).*/$1/;
+	    push @parameterlist, $arg;
+	    if (!$parameterdescs{$arg}) {
+	        $parameterdescs{$arg} = $undescribed;
+	        print STDERR "Warning(${file}:$.): Enum value '$arg' ".
+		    "not described in enum '$declaration_name'\n";
+	    }
+
+	}
+	
+	output_declaration($declaration_name,
+			   'enum',
+			   {'enum' => $declaration_name,
+			    'module' => $modulename,
+			    'parameterlist' => \@parameterlist,
+			    'parameterdescs' => \%parameterdescs,
+			    'sectionlist' => \@sectionlist,
+			    'sections' => \%sections,
+			    'purpose' => $declaration_purpose
+			   });
+    }
+    else {
+        print STDERR "Error(${file}:$.): Cannot parse enum!\n";
+	++$errors;
+    }
+}
+
+sub dump_typedef($$) {
+    my $x = shift;
+    my $file = shift;
+
+    while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
+        $x =~ s/\(*.\)\s*;$/;/;
+	$x =~ s/\[*.\]\s*;$/;/;
+    }
+
+    if ($x =~ /typedef.*\s+(\w+)\s*;/) {
+        $declaration_name = $1;
+
+	output_declaration($declaration_name,
+			   'typedef',
+			   {'typedef' => $declaration_name,
+			    'module' => $modulename,
+			    'sectionlist' => \@sectionlist,
+			    'sections' => \%sections,
+			    'purpose' => $declaration_purpose
+			   });
+    }
+    else {
+        print STDERR "Error(${file}:$.): Cannot parse typedef!\n";
+	++$errors;
+    }
+}
+
+sub create_parameterlist($$$) {
+    my $args = shift;
+    my $splitter = shift;
+    my $file = shift;
+    my $type;
+    my $param;
+
+    while ($args =~ /(\([^\),]+),/) {
+        $args =~ s/(\([^\),]+),/$1#/g;
+    }
+    
+    foreach my $arg (split($splitter, $args)) {
+	# strip comments
+	$arg =~ s/\/\*.*\*\///;
+        # strip leading/trailing spaces
+        $arg =~ s/^\s*//;
+	$arg =~ s/\s*$//;
+	$arg =~ s/\s+/ /;
+
+	if ($arg =~ /^#/) {
+	    # Treat preprocessor directive as a typeless variable just to fill
+	    # corresponding data structures "correctly". Catch it later in
+	    # output_* subs.
+	    push_parameter($arg, "", $file);
+	} elsif ($arg =~ m/\(/) {
+	    # pointer-to-function
+	    $arg =~ tr/#/,/;
+	    $arg =~ m/[^\(]+\(\*([^\)]+)\)/;
+	    $param = $1;
+	    $type = $arg;
+	    $type =~ s/([^\(]+\(\*)$param/$1/;
+	    push_parameter($param, $type, $file);
+	} else {
+	    $arg =~ s/\s*:\s*/:/g;
+	    $arg =~ s/\s*\[/\[/g;
+
+	    my @args = split('\s*,\s*', $arg);
+	    if ($args[0] =~ m/\*/) {
+		$args[0] =~ s/(\*+)\s*/ $1/;
+	    }
+	    my @first_arg = split('\s+', shift @args);
+	    unshift(@args, pop @first_arg);
+	    $type = join " ", @first_arg;
+
+	    foreach $param (@args) {
+		if ($param =~ m/^(\*+)\s*(.*)/) {
+		    push_parameter($2, "$type $1", $file);
+		}
+		elsif ($param =~ m/(.*?):(\d+)/) {
+		    push_parameter($1, "$type:$2", $file)
+		}
+		else {
+		    push_parameter($param, $type, $file);
+		}
+	    }
+	}
+    }
+}
+
+sub push_parameter($$$) {
+	my $param = shift;
+	my $type = shift;
+	my $file = shift;
+
+	my $param_name = $param;
+	$param_name =~ s/\[.*//;
+
+	if ($type eq "" && $param eq "...")
+	{
+	    $type="";
+	    $param="...";
+	    $parameterdescs{"..."} = "variable arguments";
+	}
+	elsif ($type eq "" && ($param eq "" or $param eq "void"))
+	{
+	    $type="";
+	    $param="void";
+	    $parameterdescs{void} = "no arguments";
+	}
+	if (defined $type && $type && !defined $parameterdescs{$param_name}) {
+	    $parameterdescs{$param_name} = $undescribed;
+
+	    if (($type eq 'function') || ($type eq 'enum')) {
+	        print STDERR "Warning(${file}:$.): Function parameter ".
+		    "or member '$param' not " .
+		    "described in '$declaration_name'\n";
+	    }
+	    print STDERR "Warning(${file}:$.):".
+	                 " No description found for parameter '$param'\n";
+	    ++$warnings;
+        }
+
+	push @parameterlist, $param;
+	$parametertypes{$param} = $type;
+}
+
+##
+# takes a function prototype and the name of the current file being
+# processed and spits out all the details stored in the global
+# arrays/hashes.
+sub dump_function($$) {
+    my $prototype = shift;
+    my $file = shift;
+
+    $prototype =~ s/^static +//;
+    $prototype =~ s/^extern +//;
+    $prototype =~ s/^inline +//;
+    $prototype =~ s/^__inline__ +//;
+    $prototype =~ s/^#define +//; #ak added
+    $prototype =~ s/__attribute__ \(\([a-z,]*\)\)//;
+
+    # Yes, this truly is vile.  We are looking for:
+    # 1. Return type (may be nothing if we're looking at a macro)
+    # 2. Function name
+    # 3. Function parameters.
+    #
+    # All the while we have to watch out for function pointer parameters
+    # (which IIRC is what the two sections are for), C types (these
+    # regexps don't even start to express all the possibilities), and
+    # so on.
+    #
+    # If you mess with these regexps, it's a good idea to check that
+    # the following functions' documentation still comes out right:
+    # - parport_register_device (function pointer parameters)
+    # - atomic_set (macro)
+    # - pci_match_device (long return type)
+
+    if ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
+	$prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
+	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
+	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
+	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
+	$return_type = $1;
+	$declaration_name = $2;
+	my $args = $3;
+
+	create_parameterlist($args, ',', $file);
+    } else {
+	print STDERR "Error(${file}:$.): cannot understand prototype: '$prototype'\n";
+	++$errors;
+	return;
+    }
+
+    output_declaration($declaration_name, 
+		       'function',
+		       {'function' => $declaration_name,
+			'module' => $modulename,
+			'functiontype' => $return_type,
+			'parameterlist' => \@parameterlist,
+			'parameterdescs' => \%parameterdescs,
+			'parametertypes' => \%parametertypes,
+			'sectionlist' => \@sectionlist,
+			'sections' => \%sections,
+			'purpose' => $declaration_purpose
+		       });
+}
+
+sub process_file($);
+
+# Read the file that maps relative names to absolute names for
+# separate source and object directories and for shadow trees.
+if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
+	my ($relname, $absname);
+	while(<SOURCE_MAP>) {
+		chop();
+		($relname, $absname) = (split())[0..1];
+		$relname =~ s:^/+::;
+		$source_map{$relname} = $absname;
+	}
+	close(SOURCE_MAP);
+}
+
+if ($filelist) {
+	open(FLIST,"<$filelist") or die "Can't open file list $filelist";
+	while(<FLIST>) {
+		chop;
+		process_file($_);
+	}
+}
+
+foreach (@ARGV) {
+    chomp;
+    process_file($_);
+}
+if ($verbose && $errors) {
+  print STDERR "$errors errors\n";
+}
+if ($verbose && $warnings) {
+  print STDERR "$warnings warnings\n";
+}
+
+exit($errors);
+
+sub reset_state {
+    $function = "";
+    %constants = ();
+    %parameterdescs = ();
+    %parametertypes = ();
+    @parameterlist = ();
+    %sections = ();
+    @sectionlist = ();
+    $prototype = "";
+    
+    $state = 0;
+}
+
+sub process_state3_function($$) { 
+    my $x = shift;
+    my $file = shift;
+
+    if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#define/)) {
+	# do nothing
+    }
+    elsif ($x =~ /([^\{]*)/) {
+        $prototype .= $1;
+    }
+    if (($x =~ /\{/) || ($x =~ /\#define/) || ($x =~ /;/)) {
+        $prototype =~ s@/\*.*?\*/@@gos;	# strip comments.
+	$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
+	$prototype =~ s@^\s+@@gos; # strip leading spaces
+	dump_function($prototype,$file);
+	reset_state();
+    }
+}
+
+sub process_state3_type($$) { 
+    my $x = shift;
+    my $file = shift;
+
+    $x =~ s@/\*.*?\*/@@gos;	# strip comments.
+    $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
+    $x =~ s@^\s+@@gos; # strip leading spaces
+    $x =~ s@\s+$@@gos; # strip trailing spaces
+    if ($x =~ /^#/) {
+	# To distinguish preprocessor directive from regular declaration later.
+	$x .= ";";
+    }
+
+    while (1) {
+        if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
+	    $prototype .= $1 . $2;
+	    ($2 eq '{') && $brcount++;
+	    ($2 eq '}') && $brcount--;
+	    if (($2 eq ';') && ($brcount == 0)) {
+	        dump_declaration($prototype,$file);
+		reset_state();
+	        last;
+	    }
+	    $x = $3;
+        } else {
+	    $prototype .= $x;
+	    last;
+	}
+    }
+}
+
+# replace <, >, and &
+sub xml_escape($) {
+	my $text = shift;
+	$text =~ s/\&/\\\\\\amp;/g;
+	$text =~ s/\</\\\\\\lt;/g;
+	$text =~ s/\>/\\\\\\gt;/g;
+	return $text;
+}
+
+sub process_file($) {
+    my ($file) = "$ENV{'SRCTREE'}@_";
+    my $identifier;
+    my $func;
+    my $initial_section_counter = $section_counter;
+
+    if (defined($source_map{$file})) {
+	$file = $source_map{$file};
+    }
+
+    if (!open(IN,"<$file")) {
+	print STDERR "Error: Cannot open file $file\n";
+	++$errors;
+	return;
+    }
+
+    $section_counter = 0;
+    while (<IN>) {
+	if ($state == 0) {
+	    if (/$doc_start/o) {
+		$state = 1;		# next line is always the function name
+	    }
+	} elsif ($state == 1) {	# this line is the function name (always)
+	    if (/$doc_block/o) {
+		$state = 4;
+		$contents = "";
+		if ( $1 eq "" ) {
+			$section = $section_intro;
+		} else {
+			$section = $1;
+		}
+            }
+	    elsif (/$doc_decl/o) {
+		$identifier = $1;
+		if (/\s*([\w\s]+?)\s*-/) {
+		    $identifier = $1;
+		}
+
+		$state = 2;
+		if (/-(.*)/) {
+		    $declaration_purpose = xml_escape($1);
+		} else {
+		    $declaration_purpose = "";
+		}
+		if ($identifier =~ m/^struct/) {
+		    $decl_type = 'struct';
+		} elsif ($identifier =~ m/^union/) {
+		    $decl_type = 'union';
+		} elsif ($identifier =~ m/^enum/) {
+		    $decl_type = 'enum';
+		} elsif ($identifier =~ m/^typedef/) {
+		    $decl_type = 'typedef';
+		} else {
+		    $decl_type = 'function';
+		}
+
+		if ($verbose) {
+		    print STDERR "Info(${file}:$.): Scanning doc for $identifier\n";
+		}
+	    } else {
+		print STDERR "Warning(${file}:$.): Cannot understand $_ on line $.",
+		" - I thought it was a doc line\n";
+		++$warnings;
+		$state = 0;
+	    }
+	} elsif ($state == 2) {	# look for head: lines, and include content
+	    if (/$doc_sect/o) {
+		$newsection = $1;
+		$newcontents = $2;
+
+		if ($contents ne "") {
+		    dump_section($section, xml_escape($contents));
+		    $section = $section_default;
+		}
+
+		$contents = $newcontents;
+		if ($contents ne "") {
+		    $contents .= "\n";
+		}
+		$section = $newsection;
+	    } elsif (/$doc_end/) {
+
+		if ($contents ne "") {
+		    dump_section($section, xml_escape($contents));
+		    $section = $section_default;
+		    $contents = "";
+		}
+
+		$prototype = "";
+		$state = 3;
+		$brcount = 0;
+#	    print STDERR "end of doc comment, looking for prototype\n";
+	    } elsif (/$doc_content/) {
+		# miguel-style comment kludge, look for blank lines after
+		# @parameter line to signify start of description
+		if ($1 eq "" && 
+			($section =~ m/^@/ || $section eq $section_context)) {
+		    dump_section($section, xml_escape($contents));
+		    $section = $section_default;
+		    $contents = "";
+		} else {
+		    $contents .= $1."\n";
+		}
+	    } else {
+		# i dont know - bad line?  ignore.
+		print STDERR "Warning(${file}:$.): bad line: $_"; 
+		++$warnings;
+	    }
+	} elsif ($state == 3) {	# scanning for function { (end of prototype)
+	    if ($decl_type eq 'function') {
+	        process_state3_function($_, $file);
+	    } else {
+	        process_state3_type($_, $file);
+	    }
+	} elsif ($state == 4) {
+		# Documentation block
+	        if (/$doc_block/) {
+			dump_section($section, $contents);
+			output_intro({'sectionlist' => \@sectionlist,
+				      'sections' => \%sections });
+			$contents = "";
+			$function = "";
+			%constants = ();
+			%parameterdescs = ();
+			%parametertypes = ();
+			@parameterlist = ();
+			%sections = ();
+			@sectionlist = ();
+			$prototype = "";
+			if ( $1 eq "" ) {
+				$section = $section_intro;
+			} else {
+				$section = $1;
+			}
+                }
+		elsif (/$doc_end/)
+		{
+			dump_section($section, $contents);
+			output_intro({'sectionlist' => \@sectionlist,
+				      'sections' => \%sections });
+			$contents = "";
+			$function = "";
+			%constants = ();
+			%parameterdescs = ();
+			%parametertypes = ();
+			@parameterlist = ();
+			%sections = ();
+			@sectionlist = ();
+			$prototype = "";
+			$state = 0;
+		}
+		elsif (/$doc_content/)
+		{
+			if ( $1 eq "" )
+			{
+				$contents .= $blankline;
+			}
+			else
+			{
+				$contents .= $1 . "\n";
+			}	
+        	}
+          }
+    }
+    if ($initial_section_counter == $section_counter) {
+	print STDERR "Warning(${file}): no structured comments found\n";
+	if ($output_mode eq "xml") {
+	    # The template wants at least one RefEntry here; make one.
+	    print "<refentry>\n";
+	    print " <refnamediv>\n";
+	    print "  <refname>\n";
+	    print "   ${file}\n";
+	    print "  </refname>\n";
+	    print "  <refpurpose>\n";
+	    print "   Document generation inconsistency\n";
+	    print "  </refpurpose>\n";
+	    print " </refnamediv>\n";
+	    print " <refsect1>\n";
+	    print "  <title>\n";
+	    print "   Oops\n";
+	    print "  </title>\n";
+	    print "  <warning>\n";
+	    print "   <para>\n";
+	    print "    The template for this document tried to insert\n";
+	    print "    the structured comment from the file\n";
+	    print "    <filename>${file}</filename> at this point,\n";
+	    print "    but none was found.\n";
+	    print "    This dummy section is inserted to allow\n";
+	    print "    generation to continue.\n";
+	    print "   </para>\n";
+	    print "  </warning>\n";
+	    print " </refsect1>\n";
+	    print "</refentry>\n";
+	}
+    }
+}