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diff --git a/v4l2-spec/dev-teletext.sgml b/v4l2-spec/dev-teletext.sgml deleted file mode 100644 index 59f9993e1..000000000 --- a/v4l2-spec/dev-teletext.sgml +++ /dev/null @@ -1,40 +0,0 @@ - <title>Teletext Interface</title> - - <para>This interface aims at devices receiving and demodulating -Teletext data [<xref linkend="ets300706" />, <xref linkend="itu653" />], evaluating the -Teletext packages and storing formatted pages in cache memory. Such -devices are usually implemented as microcontrollers with serial -interface (I<superscript>2</superscript>C) and can be found on older -TV cards, dedicated Teletext decoding cards and home-brew devices -connected to the PC parallel port.</para> - - <para>The Teletext API was designed by Martin Buck. It is defined in -the kernel header file <filename>linux/videotext.h</filename>, the -specification is available from <ulink url="http://home.pages.de/~videotext/"> -http://home.pages.de/~videotext/</ulink>. (Videotext is the name of -the German public television Teletext service.) Conventional character -device file names are <filename>/dev/vtx</filename> and -<filename>/dev/vttuner</filename>, with device number 83, 0 and 83, 16 -respectively. A similar interface exists for the Philips SAA5249 -Teletext decoder [specification?] with character device file names -<filename>/dev/tlkN</filename>, device number 102, N.</para> - - <para>Eventually the Teletext API was integrated into the V4L API -with character device file names <filename>/dev/vtx0</filename> to -<filename>/dev/vtx31</filename>, device major number 81, minor numbers -192 to 223. For reference the V4L Teletext API specification is -reproduced here in full: "Teletext interfaces talk the existing VTX -API." Teletext devices with major number 83 and 102 will be removed in -Linux 2.6.</para> - - <para>There are no plans to replace the Teletext API or to integrate -it into V4L2. Please write to the linux-media mailing list: &v4l-ml; -when the need arises.</para> - - <!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: - --> |