doc-rst: linux_tv: Error codes should be const
All error codes should be const. Most are, but there are
lots of places where we forgot to add <constant> at the DocBook.
Fix those via this small script:
for i in $(git grep -lE "\s+E[A-Z]+\b" Documentation/linux_tv/); do perl -ne 's,([^\`])\b(E[A-Z]+)\b,\1``\2``,g; print $_' <$i >a && mv a $i; done
As there are false positives, we needed to merge only the changes
that make sense, skipping the c blocks and skipping things like
EDID, EN, ETS that were also converted by the above code.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/Documentation/linux_tv/media/v4l/vidioc-g-fmt.rst b/Documentation/linux_tv/media/v4l/vidioc-g-fmt.rst
index 173e4ac..24fac45 100644
--- a/Documentation/linux_tv/media/v4l/vidioc-g-fmt.rst
+++ b/Documentation/linux_tv/media/v4l/vidioc-g-fmt.rst
@@ -47,7 +47,7 @@
:ref:`v4l2_pix_format <v4l2-pix-format>` ``pix`` or the struct
:ref:`v4l2_pix_format_mplane <v4l2-pix-format-mplane>` ``pix_mp``
member. When the requested buffer type is not supported drivers return
-an EINVAL error code.
+an ``EINVAL`` error code.
To change the current format parameters applications initialize the
``type`` field and all fields of the respective ``fmt`` union member.
@@ -69,11 +69,11 @@
ioctl. When the requested buffer type is not supported drivers return an
EINVAL error code on a :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` attempt. When I/O is already in
progress or the resource is not available for other reasons drivers
-return the EBUSY error code.
+return the ``EBUSY`` error code.
The :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` ioctl is equivalent to :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` with one
exception: it does not change driver state. It can also be called at any
-time, never returning EBUSY. This function is provided to negotiate
+time, never returning ``EBUSY``. This function is provided to negotiate
parameters, to learn about hardware limitations, without disabling I/O
or possibly time consuming hardware preparations. Although strongly
recommended drivers are not required to implement this ioctl.