€•B-Œsphinx.addnodes”Œdocument”“”)”}”(Œ rawsource”Œ”Œchildren”]”(Œ translations”Œ LanguagesNode”“”)”}”(hhh]”(hŒ pending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ refdomain”Œstd”Œreftype”Œdoc”Œ reftarget”Œ4/translations/zh_CN/userspace-api/media/dvb/frontend”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/zh_TW/userspace-api/media/dvb/frontend”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/it_IT/userspace-api/media/dvb/frontend”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/ja_JP/userspace-api/media/dvb/frontend”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/ko_KR/userspace-api/media/dvb/frontend”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/sp_SP/userspace-api/media/dvb/frontend”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ8SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later”h]”hŒ8SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later”…””}”hh£sbah}”(h]”h ]”h"]”h$]”h&]”Œ xml:space”Œpreserve”uh1h¡hhhžhhŸŒN/var/lib/git/docbuild/linux/Documentation/userspace-api/media/dvb/frontend.rst”h KubhŒtarget”“”)”}”(hŒ.. _dvb_frontend:”h]”h}”(h]”h ]”h"]”h$]”h&]”Œrefid”Œ dvb-frontend”uh1h´h KhhhžhhŸh³ubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒDigital TV Frontend API”h]”hŒDigital TV Frontend API”…””}”(hhÉhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÇhhÄhžhhŸh³h KubhŒ paragraph”“”)”}”(hŒ°The Digital TV frontend API was designed to support three groups of delivery systems: Terrestrial, cable and Satellite. Currently, the following delivery systems are supported:”h]”hŒ°The Digital TV frontend API was designed to support three groups of delivery systems: Terrestrial, cable and Satellite. Currently, the following delivery systems are supported:”…””}”(hhÙhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h K hhÄhžhubhŒ bullet_list”“”)”}”(hhh]”(hŒ list_item”“”)”}”(hŒNTerrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H, DTMB, CMMB ”h]”hØ)”}”(hŒMTerrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H, DTMB, CMMB”h]”hŒMTerrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H, DTMB, CMMB”…””}”(hhòhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h K hhîubah}”(h]”h ]”h"]”h$]”h&]”uh1hìhhéhžhhŸh³h Nubhí)”}”(hŒ9Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B) ”h]”hØ)”}”(hŒ8Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B)”h]”hŒ8Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B)”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h Khjubah}”(h]”h ]”h"]”h$]”h&]”uh1hìhhéhžhhŸh³h Nubhí)”}”(hŒ9Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS ”h]”hØ)”}”(hŒ8Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS”h]”hŒ8Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS”…””}”(hj"hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h Khjubah}”(h]”h ]”h"]”h$]”h&]”uh1hìhhéhžhhŸh³h Nubeh}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ-”uh1hçhŸh³h K hhÄhžhubhØ)”}”(hŒ?The Digital TV frontend controls several sub-devices including:”h]”hŒ?The Digital TV frontend controls several sub-devices including:”…””}”(hj>hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h KhhÄhžhubhè)”}”(hhh]”(hí)”}”(hŒTuner ”h]”hØ)”}”(hŒTuner”h]”hŒTuner”…””}”(hjShžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h KhjOubah}”(h]”h ]”h"]”h$]”h&]”uh1hìhjLhžhhŸh³h Nubhí)”}”(hŒDigital TV demodulator ”h]”hØ)”}”(hŒDigital TV demodulator”h]”hŒDigital TV demodulator”…””}”(hjkhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h Khjgubah}”(h]”h ]”h"]”h$]”h&]”uh1hìhjLhžhhŸh³h Nubhí)”}”(hŒLow noise amplifier (LNA) ”h]”hØ)”}”(hŒLow noise amplifier (LNA)”h]”hŒLow noise amplifier (LNA)”…””}”(hjƒhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h Khjubah}”(h]”h ]”h"]”h$]”h&]”uh1hìhjLhžhhŸh³h Nubhí)”}”(hŒ*Satellite Equipment Control (SEC) [#f1]_. ”h]”hØ)”}”(hŒ)Satellite Equipment Control (SEC) [#f1]_.”h]”(hŒ"Satellite Equipment Control (SEC) ”…””}”(hj›hžhhŸNh NubhŒfootnote_reference”“”)”}”(hŒ[#f1]_”h]”hŒ1”…””}”(hj¥hžhhŸNh Nubah}”(h]”Œid1”ah ]”h"]”h$]”h&]”Œauto”KhÀŒf1”Œdocname”Œ userspace-api/media/dvb/frontend”uh1j£hj›Œresolved”KubhŒ.”…””}”(hj›hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h Khj—ubah}”(h]”h ]”h"]”h$]”h&]”uh1hìhjLhžhhŸh³h Nubeh}”(h]”h ]”h"]”h$]”h&]”j<j=uh1hçhŸh³h KhhÄhžhubhØ)”}”(hŒ±The frontend can be accessed through ``/dev/dvb/adapter?/frontend?``. Data types and ioctl definitions can be accessed by including ``linux/dvb/frontend.h`` in your application.”h]”(hŒ%The frontend can be accessed through ”…””}”(hjÏhžhhŸNh NubhŒliteral”“”)”}”(hŒ``/dev/dvb/adapter?/frontend?``”h]”hŒ/dev/dvb/adapter?/frontend?”…””}”(hjÙhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j×hjÏubhŒ@. Data types and ioctl definitions can be accessed by including ”…””}”(hjÏhžhhŸNh NubjØ)”}”(hŒ``linux/dvb/frontend.h``”h]”hŒlinux/dvb/frontend.h”…””}”(hjëhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j×hjÏubhŒ in your application.”…””}”(hjÏhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h KhhÄhžhubhŒnote”“”)”}”(hŒˆTransmission via the internet (DVB-IP) and MMT (MPEG Media Transport) is not yet handled by this API but a future extension is possible.”h]”hØ)”}”(hŒˆTransmission via the internet (DVB-IP) and MMT (MPEG Media Transport) is not yet handled by this API but a future extension is possible.”h]”hŒˆTransmission via the internet (DVB-IP) and MMT (MPEG Media Transport) is not yet handled by this API but a future extension is possible.”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h K$hjubah}”(h]”h ]”h"]”h$]”h&]”uh1jhhÄhžhhŸh³h NubhŒfootnote”“”)”}”(hXÂOn Satellite systems, the API support for the Satellite Equipment Control (SEC) allows to power control and to send/receive signals to control the antenna subsystem, selecting the polarization and choosing the Intermediate Frequency IF) of the Low Noise Block Converter Feed Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC (digital SEC) specification is available at `Eutelsat `__. ”h]”(hŒlabel”“”)”}”(hhh]”hŒ1”…””}”(hj%hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j#hjhžhhŸNh NubhØ)”}”(hXÀOn Satellite systems, the API support for the Satellite Equipment Control (SEC) allows to power control and to send/receive signals to control the antenna subsystem, selecting the polarization and choosing the Intermediate Frequency IF) of the Low Noise Block Converter Feed Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC (digital SEC) specification is available at `Eutelsat `__.”h]”(hXƒOn Satellite systems, the API support for the Satellite Equipment Control (SEC) allows to power control and to send/receive signals to control the antenna subsystem, selecting the polarization and choosing the Intermediate Frequency IF) of the Low Noise Block Converter Feed Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC (digital SEC) specification is available at ”…””}”(hj2hžhhŸNh NubhŒ reference”“”)”}”(hŒ<`Eutelsat `__”h]”hŒEutelsat”…””}”(hj<hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œname”ŒEutelsat”Œrefuri”Œ-http://www.eutelsat.com/satellites/4_5_5.html”uh1j:hj2ubhŒ.”…””}”(hj2hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h×hŸh³h K)hjubeh}”(h]”jµah ]”h"]”Œf1”ah$]”h&]”j¯aj´Kj¶j·uh1jhŸh³h K'hhÄhžhubhŒcompound”“”)”}”(hhh]”hŒtoctree”“”)”}”(hhh]”h}”(h]”h ]”h"]”h$]”h&]”hj·Œentries”]”(NŒ/userspace-api/media/dvb/query-dvb-frontend-info”†”NŒ*userspace-api/media/dvb/dvb-fe-read-status”†”NŒ#userspace-api/media/dvb/dvbproperty”†”NŒ'userspace-api/media/dvb/frontend_fcalls”†”eŒ includefiles”]”(jqjsjujweŒmaxdepth”KŒcaption”NŒglob”‰Œhidden”‰Œ includehidden”‰Œnumbered”KŒ titlesonly”‰Œ rawentries”]”uh1jdhŸh³h K2hjaubah}”(h]”h ]”Œtoctree-wrapper”ah"]”h$]”h&]”uh1j_hhÄhžhhŸh³h Nubeh}”(h]”(Œdigital-tv-frontend-api”hÁeh ]”h"]”(Œdigital tv frontend api”Œ dvb_frontend”eh$]”h&]”uh1hÂhhhžhhŸh³h KŒexpect_referenced_by_name”}”j‘h¶sŒexpect_referenced_by_id”}”hÁh¶subeh}”(h]”h ]”h"]”h$]”h&]”Œsource”h³uh1hŒcurrent_source”NŒ current_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(hÇNŒ generator”NŒ datestamp”NŒ source_link”NŒ source_url”NŒ toc_backlinks”Œentry”Œfootnote_backlinks”KŒ sectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒ strip_classes”NŒ report_level”KŒ halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ traceback”ˆŒinput_encoding”Œ utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”j»Œerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œ language_code”Œen”Œrecord_dependencies”NŒconfig”NŒ id_prefix”hŒauto_id_prefix”Œid”Œ dump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”h³Œ _destination”NŒ _config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒ raw_enabled”KŒline_length_limit”M'Œpep_references”NŒ pep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒ rfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œ smart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œ docinfo_xform”KŒsectsubtitle_xform”‰Œ image_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œf1”]”j¥asŒrefids”}”(hÁ]”h¶ajµ]”j¥auŒnameids”}”(j‘hÁjjj\jµuŒ nametypes”}”(j‘ˆj‰j\ˆuh}”(hÁhÄjhÄj¯j¥jµjuŒ footnote_refs”}”jû]”j¥asŒ citation_refs”}”Œ autofootnotes”]”jaŒautofootnote_refs”]”j¥aŒsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ footnotes”]”Œ citations”]”Œautofootnote_start”KŒsymbol_footnote_start”KŒ id_counter”Œ collections”ŒCounter”“”}”jÉKs…”R”Œparse_messages”]”Œtransform_messages”]”hŒsystem_message”“”)”}”(hhh]”hØ)”}”(hhh]”hŒ2Hyperlink target "dvb-frontend" is not referenced.”…””}”hj)sbah}”(h]”h ]”h"]”h$]”h&]”uh1h×hj&ubah}”(h]”h ]”h"]”h$]”h&]”Œlevel”KŒtype”ŒINFO”Œsource”h³Œline”Kuh1j$ubaŒ transformer”NŒ include_log”]”Œ decoration”Nhžhub.