aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/DocBook/v4l/compat.xml
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/DocBook/v4l/compat.xml')
-rw-r--r--Documentation/DocBook/v4l/compat.xml24
1 files changed, 16 insertions, 8 deletions
diff --git a/Documentation/DocBook/v4l/compat.xml b/Documentation/DocBook/v4l/compat.xml
index 54447f0d0784..c9ce61d981f5 100644
--- a/Documentation/DocBook/v4l/compat.xml
+++ b/Documentation/DocBook/v4l/compat.xml
@@ -21,11 +21,15 @@ API.</para>
21 <title>Opening and Closing Devices</title> 21 <title>Opening and Closing Devices</title>
22 22
23 <para>For compatibility reasons the character device file names 23 <para>For compatibility reasons the character device file names
24recommended for V4L2 video capture, overlay, radio, teletext and raw 24recommended for V4L2 video capture, overlay, radio and raw
25vbi capture devices did not change from those used by V4L. They are 25vbi capture devices did not change from those used by V4L. They are
26listed in <xref linkend="devices" /> and below in <xref 26listed in <xref linkend="devices" /> and below in <xref
27 linkend="v4l-dev" />.</para> 27 linkend="v4l-dev" />.</para>
28 28
29 <para>The teletext devices (minor range 192-223) have been removed in
30V4L2 and no longer exist. There is no hardware available anymore for handling
31pure teletext. Instead raw or sliced VBI is used.</para>
32
29 <para>The V4L <filename>videodev</filename> module automatically 33 <para>The V4L <filename>videodev</filename> module automatically
30assigns minor numbers to drivers in load order, depending on the 34assigns minor numbers to drivers in load order, depending on the
31registered device type. We recommend that V4L2 drivers by default 35registered device type. We recommend that V4L2 drivers by default
@@ -66,13 +70,6 @@ not compatible with V4L or V4L2.</para> </footnote>,
66 <entry>64-127</entry> 70 <entry>64-127</entry>
67 </row> 71 </row>
68 <row> 72 <row>
69 <entry>Teletext decoder</entry>
70 <entry><para><filename>/dev/vtx</filename>,
71<filename>/dev/vtx0</filename> to
72<filename>/dev/vtx31</filename></para></entry>
73 <entry>192-223</entry>
74 </row>
75 <row>
76 <entry>Raw VBI capture</entry> 73 <entry>Raw VBI capture</entry>
77 <entry><para><filename>/dev/vbi</filename>, 74 <entry><para><filename>/dev/vbi</filename>,
78<filename>/dev/vbi0</filename> to 75<filename>/dev/vbi0</filename> to
@@ -2345,6 +2342,17 @@ more information.</para>
2345 </listitem> 2342 </listitem>
2346 </orderedlist> 2343 </orderedlist>
2347 </section> 2344 </section>
2345 <section>
2346 <title>V4L2 in Linux 2.6.37</title>
2347 <orderedlist>
2348 <listitem>
2349 <para>Remove the vtx (videotext/teletext) API. This API was no longer
2350used and no hardware exists to verify the API. Nor were any userspace applications found
2351that used it. It was originally scheduled for removal in 2.6.35.
2352 </para>
2353 </listitem>
2354 </orderedlist>
2355 </section>
2348 2356
2349 <section id="other"> 2357 <section id="other">
2350 <title>Relation of V4L2 to other Linux multimedia APIs</title> 2358 <title>Relation of V4L2 to other Linux multimedia APIs</title>