From d39d7085222f78035b49bc48eb1c0f6180d085b9 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 2 Sep 2017 16:32:15 -0400 Subject: 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: Mauro Carvalho Chehab --- Documentation/media/uapi/v4l/vidioc-querycap.rst | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'Documentation/media') diff --git a/Documentation/media/uapi/v4l/vidioc-querycap.rst b/Documentation/media/uapi/v4l/vidioc-querycap.rst index 9494af96bae7..7553b44692b4 100644 --- a/Documentation/media/uapi/v4l/vidioc-querycap.rst +++ b/Documentation/media/uapi/v4l/vidioc-querycap.rst @@ -92,12 +92,13 @@ specification the ioctl returns an ``EINVAL`` error code. stack from a newer kernel. 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` ``#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",`` -- cgit v1.2.3