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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/userspace-api/media/dvb/frontend-property-cable-systems.rst | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/userspace-api/media/dvb/frontend-property-cable-systems.rst | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/dvb/frontend-property-cable-systems.rst b/Documentation/userspace-api/media/dvb/frontend-property-cable-systems.rst new file mode 100644 index 000000000..92ef98964 --- /dev/null +++ b/Documentation/userspace-api/media/dvb/frontend-property-cable-systems.rst @@ -0,0 +1,75 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later + +.. _frontend-property-cable-systems: + +***************************************** +Properties used on cable delivery systems +***************************************** + + +.. _dvbc-params: + +DVB-C delivery system +===================== + +The DVB-C Annex-A is the widely used cable standard. Transmission uses +QAM modulation. + +The DVB-C Annex-C is optimized for 6MHz, and is used in Japan. It +supports a subset of the Annex A modulation types, and a roll-off of +0.13, instead of 0.15 + +The following parameters are valid for DVB-C Annex A/C: + +- :ref:`DTV_API_VERSION <DTV-API-VERSION>` + +- :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` + +- :ref:`DTV_TUNE <DTV-TUNE>` + +- :ref:`DTV_CLEAR <DTV-CLEAR>` + +- :ref:`DTV_FREQUENCY <DTV-FREQUENCY>` + +- :ref:`DTV_MODULATION <DTV-MODULATION>` + +- :ref:`DTV_INVERSION <DTV-INVERSION>` + +- :ref:`DTV_SYMBOL_RATE <DTV-SYMBOL-RATE>` + +- :ref:`DTV_INNER_FEC <DTV-INNER-FEC>` + +- :ref:`DTV_LNA <DTV-LNA>` + +In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>` +are also valid. + + +.. _dvbc-annex-b-params: + +DVB-C Annex B delivery system +============================= + +The DVB-C Annex-B is only used on a few Countries like the United +States. + +The following parameters are valid for DVB-C Annex B: + +- :ref:`DTV_API_VERSION <DTV-API-VERSION>` + +- :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` + +- :ref:`DTV_TUNE <DTV-TUNE>` + +- :ref:`DTV_CLEAR <DTV-CLEAR>` + +- :ref:`DTV_FREQUENCY <DTV-FREQUENCY>` + +- :ref:`DTV_MODULATION <DTV-MODULATION>` + +- :ref:`DTV_INVERSION <DTV-INVERSION>` + +- :ref:`DTV_LNA <DTV-LNA>` + +In addition, the :ref:`DTV QoS statistics <frontend-stat-properties>` +are also valid. |