Commit d39d7085 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab

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

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: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 1473c75e
...@@ -92,12 +92,13 @@ specification the ioctl returns an ``EINVAL`` error code. ...@@ -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",``
......
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