diff options
Diffstat (limited to 'Documentation/userspace-api/media')
| -rw-r--r-- | Documentation/userspace-api/media/dvb/fe_property_parameters.rst | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/Documentation/userspace-api/media/dvb/fe_property_parameters.rst b/Documentation/userspace-api/media/dvb/fe_property_parameters.rst index ecd84a8790a2..1717a0565fe8 100644 --- a/Documentation/userspace-api/media/dvb/fe_property_parameters.rst +++ b/Documentation/userspace-api/media/dvb/fe_property_parameters.rst @@ -89,16 +89,21 @@ ATSC (version 1) 8-VSB and 16-VSB. DMTB 4-QAM, 16-QAM, 32-QAM, 64-QAM and 4-QAM-NR. DVB-C Annex A/C 16-QAM, 32-QAM, 64-QAM and 256-QAM. DVB-C Annex B 64-QAM. +DVB-C2 QPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM and 4096-QAM. DVB-T QPSK, 16-QAM and 64-QAM. DVB-T2 QPSK, 16-QAM, 64-QAM and 256-QAM. DVB-S No need to set. It supports only QPSK. DVB-S2 QPSK, 8-PSK, 16-APSK and 32-APSK. +DVB-S2X 8-APSK-L, 16-APSK-L, 32-APSK-L, 64-APSK and 64-APSK-L. ISDB-T QPSK, DQPSK, 16-QAM and 64-QAM. ISDB-S 8-PSK, QPSK and BPSK. ======================= ======================================================= .. note:: + As DVB-S2X specifies extensions to the DVB-S2 standard, the same + delivery system enum value is used (SYS_DVBS2). + Please notice that some of the above modulation types may not be defined currently at the Kernel. The reason is simple: no driver needed such definition yet. @@ -854,9 +859,10 @@ The acceptable values are defined by :c:type:`fe_guard_interval`. #. If ``DTV_GUARD_INTERVAL`` is set the ``GUARD_INTERVAL_AUTO`` the hardware will try to find the correct guard interval (if capable) and will use TMCC to fill in the missing parameters. - #. Intervals ``GUARD_INTERVAL_1_128``, ``GUARD_INTERVAL_19_128`` - and ``GUARD_INTERVAL_19_256`` are used only for DVB-T2 at - present. + #. Interval ``GUARD_INTERVAL_1_64`` is used only for DVB-C2. + #. Interval ``GUARD_INTERVAL_1_128`` is used for both DVB-C2 and DVB_T2. + #. Intervals ``GUARD_INTERVAL_19_128`` and ``GUARD_INTERVAL_19_256`` are + used only for DVB-T2. #. Intervals ``GUARD_INTERVAL_PN420``, ``GUARD_INTERVAL_PN595`` and ``GUARD_INTERVAL_PN945`` are used only for DMTB at the present. On such standard, only those intervals and ``GUARD_INTERVAL_AUTO`` @@ -916,14 +922,15 @@ The acceptable values are defined by :c:type:`fe_hierarchy`. DTV_STREAM_ID ============= -Used on DVB-S2, DVB-T2 and ISDB-S. +Used on DVB-C2, DVB-S2, DVB-T2 and ISDB-S. -DVB-S2, DVB-T2 and ISDB-S support the transmission of several streams on -a single transport stream. This property enables the digital TV driver to -handle substream filtering, when supported by the hardware. By default, -substream filtering is disabled. +DVB-C2, DVB-S2, DVB-T2 and ISDB-S support the transmission of several +streams on a single transport stream. This property enables the digital +TV driver to handle substream filtering, when supported by the hardware. +By default, substream filtering is disabled. -For DVB-S2 and DVB-T2, the valid substream id range is from 0 to 255. +For DVB-C2, DVB-S2 and DVB-T2, the valid substream id range is from 0 to +255. For ISDB, the valid substream id range is from 1 to 65535. |