diff options
Diffstat (limited to 'Documentation/media/uapi/mediactl/media-ioc-enum-links.rst')
| -rw-r--r-- | Documentation/media/uapi/mediactl/media-ioc-enum-links.rst | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/Documentation/media/uapi/mediactl/media-ioc-enum-links.rst b/Documentation/media/uapi/mediactl/media-ioc-enum-links.rst index 87443b1ce42d..d05be16ffaf6 100644 --- a/Documentation/media/uapi/mediactl/media-ioc-enum-links.rst +++ b/Documentation/media/uapi/mediactl/media-ioc-enum-links.rst @@ -15,7 +15,8 @@ MEDIA_IOC_ENUM_LINKS - Enumerate all pads and links for a given entity Synopsis ======== -.. cpp:function:: int ioctl( int fd, int request, struct media_links_enum *argp ) +.. c:function:: int ioctl( int fd, MEDIA_IOC_ENUM_LINKS, struct media_links_enum *argp ) + :name: MEDIA_IOC_ENUM_LINKS Arguments @@ -24,9 +25,6 @@ Arguments ``fd`` File descriptor returned by :ref:`open() <media-func-open>`. -``request`` - MEDIA_IOC_ENUM_LINKS - ``argp`` @@ -34,10 +32,10 @@ Description =========== To enumerate pads and/or links for a given entity, applications set the -entity field of a struct :ref:`media_links_enum <media-links-enum>` +entity field of a struct :c:type:`media_links_enum` structure and initialize the struct -:ref:`media_pad_desc <media-pad-desc>` and struct -:ref:`media_link_desc <media-link-desc>` structure arrays pointed by +:c:type:`media_pad_desc` and struct +:c:type:`media_link_desc` structure arrays pointed by the ``pads`` and ``links`` fields. They then call the MEDIA_IOC_ENUM_LINKS ioctl with a pointer to this structure. @@ -55,7 +53,9 @@ Only forward links that originate at one of the entity's source pads are returned during the enumeration process. -.. _media-links-enum: +.. c:type:: media_links_enum + +.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}| .. flat-table:: struct media_links_enum :header-rows: 0 @@ -73,7 +73,7 @@ returned during the enumeration process. - .. row 2 - - struct :ref:`media_pad_desc <media-pad-desc>` + - struct :c:type:`media_pad_desc` - \*\ ``pads`` @@ -82,7 +82,7 @@ returned during the enumeration process. - .. row 3 - - struct :ref:`media_link_desc <media-link-desc>` + - struct :c:type:`media_link_desc` - \*\ ``links`` @@ -91,7 +91,9 @@ returned during the enumeration process. -.. _media-pad-desc: +.. c:type:: media_pad_desc + +.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}| .. flat-table:: struct media_pad_desc :header-rows: 0 @@ -125,7 +127,9 @@ returned during the enumeration process. -.. _media-link-desc: +.. c:type:: media_link_desc + +.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}| .. flat-table:: struct media_link_desc :header-rows: 0 @@ -135,7 +139,7 @@ returned during the enumeration process. - .. row 1 - - struct :ref:`media_pad_desc <media-pad-desc>` + - struct :c:type:`media_pad_desc` - ``source`` @@ -143,7 +147,7 @@ returned during the enumeration process. - .. row 2 - - struct :ref:`media_pad_desc <media-pad-desc>` + - struct :c:type:`media_pad_desc` - ``sink`` @@ -166,5 +170,5 @@ appropriately. The generic error codes are described at the :ref:`Generic Error Codes <gen-errors>` chapter. EINVAL - The struct :ref:`media_links_enum <media-links-enum>` ``id`` + The struct :c:type:`media_links_enum` ``id`` references a non-existing entity. |