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authorMichal Marek <mmarek@suse.cz>2013-02-25 21:50:05 +0100
committerMichal Marek <mmarek@suse.cz>2013-02-25 21:51:57 +0100
commite3900e74f26fc924c8e9e2a922bd40369b0bb517 (patch)
tree6e868575d346032ba9408f350c6e5369e0e52b0d /Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
parent62dc989921df2a98d1a73aacd085abe941cb9828 (diff)
parent02f3e53a131c8aa3fe3c954058f1add5beeae621 (diff)
downloadop-kernel-dev-e3900e74f26fc924c8e9e2a922bd40369b0bb517.zip
op-kernel-dev-e3900e74f26fc924c8e9e2a922bd40369b0bb517.tar.gz
Merge branch 'kbuild/rc-fixes' into kbuild/kconfig
There is one kconfig fix in the rc-fixes branch that I forgot to submit for 3.8, so let's add it to the kconfig branch for 3.9-rc1.
Diffstat (limited to 'Documentation/DocBook/media/v4l/vidioc-create-bufs.xml')
-rw-r--r--Documentation/DocBook/media/v4l/vidioc-create-bufs.xml16
1 files changed, 9 insertions, 7 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
index a8cda1a..cd99436 100644
--- a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
@@ -6,7 +6,8 @@
<refnamediv>
<refname>VIDIOC_CREATE_BUFS</refname>
- <refpurpose>Create buffers for Memory Mapped or User Pointer I/O</refpurpose>
+ <refpurpose>Create buffers for Memory Mapped or User Pointer or DMA Buffer
+ I/O</refpurpose>
</refnamediv>
<refsynopsisdiv>
@@ -55,11 +56,11 @@
</note>
<para>This ioctl is used to create buffers for <link linkend="mmap">memory
-mapped</link> or <link linkend="userp">user pointer</link>
-I/O. It can be used as an alternative or in addition to the
-<constant>VIDIOC_REQBUFS</constant> ioctl, when a tighter control over buffers
-is required. This ioctl can be called multiple times to create buffers of
-different sizes.</para>
+mapped</link> or <link linkend="userp">user pointer</link> or <link
+linkend="dmabuf">DMA buffer</link> I/O. It can be used as an alternative or in
+addition to the <constant>VIDIOC_REQBUFS</constant> ioctl, when a tighter
+control over buffers is required. This ioctl can be called multiple times to
+create buffers of different sizes.</para>
<para>To allocate device buffers applications initialize relevant fields of
the <structname>v4l2_create_buffers</structname> structure. They set the
@@ -109,7 +110,8 @@ information.</para>
<entry>__u32</entry>
<entry><structfield>memory</structfield></entry>
<entry>Applications set this field to
-<constant>V4L2_MEMORY_MMAP</constant> or
+<constant>V4L2_MEMORY_MMAP</constant>,
+<constant>V4L2_MEMORY_DMABUF</constant> or
<constant>V4L2_MEMORY_USERPTR</constant>. See <xref linkend="v4l2-memory"
/></entry>
</row>
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