From 8e080c2e6cadada82a6b520e0c23a1cb974822d5 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 13 Sep 2009 22:16:04 -0300 Subject: V4L/DVB (12761): DocBook: add media API specs The V4L and DVB API's are there for a long time. however, up to now, no efforts were done to merge them to kernel DocBook. This patch adds the current versions of the specs as an unique compendium. Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/dev-teletext.xml | 40 ++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/DocBook/v4l/dev-teletext.xml (limited to 'Documentation/DocBook/v4l/dev-teletext.xml') diff --git a/Documentation/DocBook/v4l/dev-teletext.xml b/Documentation/DocBook/v4l/dev-teletext.xml new file mode 100644 index 000000000000..59f9993e1489 --- /dev/null +++ b/Documentation/DocBook/v4l/dev-teletext.xml @@ -0,0 +1,40 @@ + Teletext Interface + + This interface aims at devices receiving and demodulating +Teletext data [, ], evaluating the +Teletext packages and storing formatted pages in cache memory. Such +devices are usually implemented as microcontrollers with serial +interface (I2C) and can be found on older +TV cards, dedicated Teletext decoding cards and home-brew devices +connected to the PC parallel port. + + The Teletext API was designed by Martin Buck. It is defined in +the kernel header file linux/videotext.h, the +specification is available from +http://home.pages.de/~videotext/. (Videotext is the name of +the German public television Teletext service.) Conventional character +device file names are /dev/vtx and +/dev/vttuner, 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 +/dev/tlkN, device number 102, N. + + Eventually the Teletext API was integrated into the V4L API +with character device file names /dev/vtx0 to +/dev/vtx31, 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. + + 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. + + -- cgit v1.2.3-59-g8ed1b From e5b20214e6628cc30d32b153640e230a4bfdea3b Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 15 Sep 2009 20:49:43 -0300 Subject: DocBook/media: fix some broken links Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/dev-teletext.xml | 4 ++-- Documentation/DocBook/v4l/pixfmt.xml | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation/DocBook/v4l/dev-teletext.xml') diff --git a/Documentation/DocBook/v4l/dev-teletext.xml b/Documentation/DocBook/v4l/dev-teletext.xml index 59f9993e1489..76184e8ed618 100644 --- a/Documentation/DocBook/v4l/dev-teletext.xml +++ b/Documentation/DocBook/v4l/dev-teletext.xml @@ -10,8 +10,8 @@ connected to the PC parallel port. The Teletext API was designed by Martin Buck. It is defined in the kernel header file linux/videotext.h, the -specification is available from -http://home.pages.de/~videotext/. (Videotext is the name of +specification is available from +ftp://ftp.gwdg.de/pub/linux/misc/videotext/. (Videotext is the name of the German public television Teletext service.) Conventional character device file names are /dev/vtx and /dev/vttuner, with device number 83, 0 and 83, 16 diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/v4l/pixfmt.xml index aaea55d44592..ebfbed03dbb2 100644 --- a/Documentation/DocBook/v4l/pixfmt.xml +++ b/Documentation/DocBook/v4l/pixfmt.xml @@ -157,7 +157,7 @@ used in the Windows world. +http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html --> -- cgit v1.2.3-59-g8ed1b