linux-kernel - Re: [PATCH] documentation: how to use DOC: section blocks

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Message-Id: <1229626875.3601.34.camel@johannes.berg>
Date:	Thu, 18 Dec 2008 20:01:15 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	lkml <linux-kernel@...r.kernel.org>, linux-doc@...r.kernel.org,
	akpm <akpm@...ux-foundation.org>
Subject: Re: [PATCH] documentation: how to use DOC: section blocks

On Thu, 2008-12-18 at 10:57 -0800, Randy Dunlap wrote:
> From: Randy Dunlap <randy.dunlap@...cle.com>
> 
> Add info on how to use DOC: sections in kernel-doc.
> DOC: sections enable the addition of inline source file comments
> that are general in nature instead of being specific to a
> function, struct, union, enum, or typedef.

Nice, thanks for the documentation Randy, looks great to me.

> Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
> cc: Johannes Berg <johannes@...solutions.net>
> ---
>  Documentation/kernel-doc-nano-HOWTO.txt |   29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> --- linux-next-20081218.orig/Documentation/kernel-doc-nano-HOWTO.txt
> +++ linux-next-20081218/Documentation/kernel-doc-nano-HOWTO.txt
> @@ -282,6 +282,32 @@ struct my_struct {
>  };
>  
> 
> +Including documentation blocks in source files
> +----------------------------------------------
> +
> +To facilitate having source code and comments close together, you can
> +include kernel-doc documentation blocks that are free-form comments
> +instead of being kernel-doc for functions, structures, unions,
> +enums, or typedefs.  This could be used for something like a
> +theory of operation for a driver or library code, for example.
> +
> +This is done by using a DOC: section keyword with a section title.  E.g.:
> +
> +/**
> + * DOC: Theory of Operation
> + *
> + * The whizbang foobar is a dilly of a gizmo.  It can do whatever you
> + * want it to do, at any time.  It reads your mind.  Here's how it works.
> + *
> + * foo bar splat
> + *
> + * The only drawback to this gizmo is that is can sometimes damage
> + * hardware, software, or its subject(s).
> + */
> +
> +DOC: sections are used in SGML templates files as indicated below.
> +
> +
>  How to make new SGML template files
>  -----------------------------------
>  
> @@ -302,6 +328,9 @@ exported using EXPORT_SYMBOL.
>  !F<filename> <function [functions...]> is replaced by the
>  documentation, in <filename>, for the functions listed.
>  
> +!P<filename> <section title> is replaced by the contents of the DOC:
> +section titled <section title> from <filename>.
> +Spaces are allowed in <section title>; do not quote the <section title>.
>  
>  Tim.
>  */ <twaugh@...hat.com>
> 

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