diff options
Diffstat (limited to 'Documentation/media/uapi/v4l/vidioc-querycap.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/vidioc-querycap.rst | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/media/uapi/v4l/vidioc-querycap.rst b/Documentation/media/uapi/v4l/vidioc-querycap.rst index 12e0d9a63cd8..66fb1b3d6e6e 100644 --- a/Documentation/media/uapi/v4l/vidioc-querycap.rst +++ b/Documentation/media/uapi/v4l/vidioc-querycap.rst @@ -26,6 +26,7 @@ Arguments File descriptor returned by :ref:`open() <func-open>`. ``argp`` + Pointer to struct :c:type:`v4l2_capability`. Description @@ -91,12 +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",`` @@ -131,7 +133,7 @@ specification the ioctl returns an ``EINVAL`` error code. -.. tabularcolumns:: |p{6cm}|p{2.2cm}|p{8.8cm}| +.. tabularcolumns:: |p{6.1cm}|p{2.2cm}|p{8.7cm}| .. _device-capabilities: |