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media: vidioc-querycap: use a more realistic value for KERNEL_VERSION

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In the past, V4L2 versions were 0.x.y, but that changed years
ago. Since Kernel 3.1, however, the numbering schema was changed
to match the Kernel version.

However, the presented example still uses the old numerating
schema, with is a misleading information.

So, update it to the new schema.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab
2017-09-02 16:32:15 -04:00
parent 1473c75e9a
commit d39d708522
1 changed files with 3 additions and 2 deletions
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5
Documentation/media/uapi/v4l/vidioc-querycap.rst
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@@ -92,12 +92,13 @@ specification the ioctl returns an ``EINVAL`` error code.
stack from a newer kernel. stack from a newer kernel.
The version number is formatted using the ``KERNEL_VERSION()`` The version number is formatted using the ``KERNEL_VERSION()``
macro: macro. For example if the media stack corresponds to the V4L2
version shipped with Kernel 4.14, it would be equivalent to:
* - :cspan:`2` * - :cspan:`2`
``#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))`` ``#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))``
``__u32 version = KERNEL_VERSION(0, 8, 1);`` ``__u32 version = KERNEL_VERSION(4, 14, 0);``
``printf ("Version: %u.%u.%u\\n",`` ``printf ("Version: %u.%u.%u\\n",``