media: docs: move uAPI book to userspace-api/media

Since 2017, there is an space reserved for userspace API,
created by changeset 1d596dee3862 ("docs: Create a user-space API guide").

As the media subsystem was one of the first subsystems to use
Sphinx, until this patch, we were keeping things on a separate
place.

Let's just use the new location, as having all uAPI altogether
will likely make things easier for developers.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

1 files changed, 0 insertions, 74 deletions

diff --git a/Documentation/media/uapi/mediactl/media-ioc-setup-link.rst b/Documentation/media/uapi/mediactl/media-ioc-setup-link.rst
deleted file mode 100644
index ae39dbbe48a0..000000000000
--- a/Documentation/media/uapi/mediactl/media-ioc-setup-link.rst
+++ /dev/null
@@ -1,74 +0,0 @@
-.. Permission is granted to copy, distribute and/or modify this
-.. document under the terms of the GNU Free Documentation License,
-.. Version 1.1 or any later version published by the Free Software
-.. Foundation, with no Invariant Sections, no Front-Cover Texts
-.. and no Back-Cover Texts. A copy of the license is included at
-.. Documentation/media/uapi/fdl-appendix.rst.
-..
-.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
-
-.. _media_ioc_setup_link:
-
-**************************
-ioctl MEDIA_IOC_SETUP_LINK
-**************************
-
-Name
-====
-
-MEDIA_IOC_SETUP_LINK - Modify the properties of a link
-
-
-Synopsis
-========
-
-.. c:function:: int ioctl( int fd, MEDIA_IOC_SETUP_LINK, struct media_link_desc *argp )
-    :name: MEDIA_IOC_SETUP_LINK
-
-
-Arguments
-=========
-
-``fd``
-    File descriptor returned by :ref:`open() <media-func-open>`.
-
-``argp``
-    Pointer to struct :c:type:`media_link_desc`.
-
-
-Description
-===========
-
-To change link properties applications fill a struct
-:c:type:`media_link_desc` with link identification
-information (source and sink pad) and the new requested link flags. They
-then call the MEDIA_IOC_SETUP_LINK ioctl with a pointer to that
-structure.
-
-The only configurable property is the ``ENABLED`` link flag to
-enable/disable a link. Links marked with the ``IMMUTABLE`` link flag can
-not be enabled or disabled.
-
-Link configuration has no side effect on other links. If an enabled link
-at the sink pad prevents the link from being enabled, the driver returns
-with an ``EBUSY`` error code.
-
-Only links marked with the ``DYNAMIC`` link flag can be enabled/disabled
-while streaming media data. Attempting to enable or disable a streaming
-non-dynamic link will return an ``EBUSY`` error code.
-
-If the specified link can't be found the driver returns with an ``EINVAL``
-error code.
-
-
-Return Value
-============
-
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
-
-EINVAL
-    The struct :c:type:`media_link_desc` references a
-    non-existing link, or the link is immutable and an attempt to modify
-    its configuration was made.