Changeset 8c9f46095176 ("[media] DocBook: mention the memory type to be set for all streaming I/O") updated the media DocBook to mention the need of filling the memory types. We need to keep the ReST doc updated to such change. Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> --- Documentation/media/uapi/v4l/mmap.rst | 4 ++-- Documentation/media/uapi/v4l/userp.rst | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/media/uapi/v4l/mmap.rst b/Documentation/media/uapi/v4l/mmap.rst index 2171b18c1aab..f7fe26e7ca43 100644 --- a/Documentation/media/uapi/v4l/mmap.rst +++ b/Documentation/media/uapi/v4l/mmap.rst @@ -11,8 +11,8 @@ Input and output devices support this I/O method when the :ref:`v4l2_capability <v4l2-capability>` returned by the :ref:`VIDIOC_QUERYCAP` ioctl is set. There are two streaming methods, to determine if the memory mapping flavor is -supported applications must call the -:ref:`VIDIOC_REQBUFS` ioctl. +supported applications must call the :ref:`VIDIOC_REQBUFS` ioctl +with the memory type set to ``V4L2_MEMORY_MMAP``. Streaming is an I/O method where only pointers to buffers are exchanged between application and driver, the data itself is not copied. Memory diff --git a/Documentation/media/uapi/v4l/userp.rst b/Documentation/media/uapi/v4l/userp.rst index 0ecf7a13a7af..2f0002bfbc3f 100644 --- a/Documentation/media/uapi/v4l/userp.rst +++ b/Documentation/media/uapi/v4l/userp.rst @@ -11,8 +11,8 @@ Input and output devices support this I/O method when the :ref:`v4l2_capability <v4l2-capability>` returned by the :ref:`VIDIOC_QUERYCAP` ioctl is set. If the particular user pointer method (not only memory mapping) is supported -must be determined by calling the -:ref:`VIDIOC_REQBUFS` ioctl. +must be determined by calling the :ref:`VIDIOC_REQBUFS` ioctl +with the memory type set to ``V4L2_MEMORY_USERPTR``. This I/O method combines advantages of the read/write and memory mapping methods. Buffers (planes) are allocated by the application itself, and -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html