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eaec420f53
The type field in struct v4l2_selection is supposed to never use the _MPLANE variants. E.g. if the driver supports V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, then userspace should still pass V4L2_BUF_TYPE_VIDEO_CAPTURE. The reasons for this are lost in the mists of time, but it is really annoying. In addition, the exynos drivers didn't follow this rule and instead expected the _MPLANE type. To fix that code is added to the v4l2 core that maps the _MPLANE buffer types to their regular equivalents before calling the driver. Effectively this allows for userspace to use either _MPLANE or the regular buffer type. This keeps backwards compatibility while making things easier for userspace. Since drivers now never see the _MPLANE buffer types the exynos drivers had to be adapted as well. Signed-off-by: Hans Verkuil <hansverk@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.