修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/Documentation/doc-guide/kernel-doc.rst
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@@ -77,7 +77,7 @@
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    * Context: Describes whether the function can sleep, what locks it takes,
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    *          releases, or expects to be held. It can extend over multiple
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    *          lines.
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-   * Return: Describe the return value of foobar.
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+   * Return: Describe the return value of function_name.
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    *
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    * The return value description can also have multiple paragraphs, and should
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    * be placed at the end of the comment block.
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@@ -359,7 +359,7 @@
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   ``monospaced font``.
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   Useful if you need to use special characters that would otherwise have some
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-  meaning either by kernel-doc script of by reStructuredText.
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+  meaning either by kernel-doc script or by reStructuredText.
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   This is particularly useful if you need to use things like ``%ph`` inside
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   a function description.
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@@ -387,22 +387,23 @@
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 Cross-referencing from reStructuredText
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 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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-To cross-reference the functions and types defined in the kernel-doc comments
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-from reStructuredText documents, please use the `Sphinx C Domain`_
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-references. For example::
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+No additional syntax is needed to cross-reference the functions and types
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+defined in the kernel-doc comments from reStructuredText documents.
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+Just end function names with ``()`` and write ``struct``, ``union``, ``enum``
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+or ``typedef`` before types.
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+For example::
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-  See function :c:func:`foo` and struct/union/enum/typedef :c:type:`bar`.
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+  See foo().
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+  See struct foo.
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+  See union bar.
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+  See enum baz.
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+  See typedef meh.
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-While the type reference works with just the type name, without the
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-struct/union/enum/typedef part in front, you may want to use::
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+However, if you want custom text in the cross-reference link, that can be done
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+through the following syntax::
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-  See :c:type:`struct foo <foo>`.
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-  See :c:type:`union bar <bar>`.
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-  See :c:type:`enum baz <baz>`.
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-  See :c:type:`typedef meh <meh>`.
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-
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-This will produce prettier links, and is in line with how kernel-doc does the
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-cross-references.
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+  See :c:func:`my custom link text for function foo <foo>`.
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+  See :c:type:`my custom link text for struct bar <bar>`.
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 For further details, please refer to the `Sphinx C Domain`_ documentation.
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@@ -476,6 +477,30 @@
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     .. kernel-doc:: drivers/gpu/drm/i915/intel_audio.c
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        :internal:
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+identifiers: *[ function/type ...]*
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+  Include documentation for each *function* and *type* in *source*.
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+  If no *function* is specified, the documentation for all functions
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+  and types in the *source* will be included.
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+
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+  Examples::
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+
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+    .. kernel-doc:: lib/bitmap.c
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+       :identifiers: bitmap_parselist bitmap_parselist_user
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+
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+    .. kernel-doc:: lib/idr.c
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+       :identifiers:
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+
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+no-identifiers: *[ function/type ...]*
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+  Exclude documentation for each *function* and *type* in *source*.
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+
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+  Example::
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+
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+    .. kernel-doc:: lib/bitmap.c
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+       :no-identifiers: bitmap_parselist
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+
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+functions: *[ function/type ...]*
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+  This is an alias of the 'identifiers' directive and deprecated.
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+
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 doc: *title*
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   Include documentation for the ``DOC:`` paragraph identified by *title* in
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   *source*. Spaces are allowed in *title*; do not quote the *title*. The *title*
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     .. kernel-doc:: drivers/gpu/drm/i915/intel_audio.c
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        :doc: High Definition Audio over HDMI and Display Port
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-
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-functions: *[ function ...]*
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-  Include documentation for each *function* in *source*.
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-  If no *function* if specified, the documentaion for all functions
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-  and types in the *source* will be included.
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-
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-  Examples::
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-
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-    .. kernel-doc:: lib/bitmap.c
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-       :functions: bitmap_parselist bitmap_parselist_user
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-
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-    .. kernel-doc:: lib/idr.c
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-       :functions:
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 Without options, the kernel-doc directive includes all documentation comments
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 from the source file.
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@@ -517,4 +529,17 @@
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 If you just want to use kernel-doc to generate man pages you can do this
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 from the kernel git tree::
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-  $ scripts/kernel-doc -man $(git grep -l '/\*\*' -- :^Documentation :^tools) | scripts/split-man.pl /tmp/man
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+  $ scripts/kernel-doc -man \
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+    $(git grep -l '/\*\*' -- :^Documentation :^tools) \
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+    | scripts/split-man.pl /tmp/man
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+
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+Some older versions of git do not support some of the variants of syntax for
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+path exclusion.  One of the following commands may work for those versions::
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+
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+  $ scripts/kernel-doc -man \
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+    $(git grep -l '/\*\*' -- . ':!Documentation' ':!tools') \
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+    | scripts/split-man.pl /tmp/man
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+
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+  $ scripts/kernel-doc -man \
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+    $(git grep -l '/\*\*' -- . ":(exclude)Documentation" ":(exclude)tools") \
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+    | scripts/split-man.pl /tmp/man