@Qsphinx.addnodesdocument)}( rawsourcechildren]( translations LanguagesNode)}(hhh](h pending_xref)}(hhh]docutils.nodesTextChinese (Simplified)}parenthsba attributes}(ids]classes]names]dupnames]backrefs] refdomainstdreftypedoc reftarget;/translations/zh_CN/userspace-api/media/v4l/ext-ctrls-fm-rxmodnameN classnameN refexplicitutagnamehhh ubh)}(hhh]hChinese (Traditional)}hh2sbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget;/translations/zh_TW/userspace-api/media/v4l/ext-ctrls-fm-rxmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hItalian}hhFsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget;/translations/it_IT/userspace-api/media/v4l/ext-ctrls-fm-rxmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hJapanese}hhZsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget;/translations/ja_JP/userspace-api/media/v4l/ext-ctrls-fm-rxmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hKorean}hhnsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget;/translations/ko_KR/userspace-api/media/v4l/ext-ctrls-fm-rxmodnameN classnameN refexplicituh1hhh ubh)}(hhh]hSpanish}hhsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget;/translations/sp_SP/userspace-api/media/v4l/ext-ctrls-fm-rxmodnameN classnameN refexplicituh1hhh ubeh}(h]h ]h"]h$]h&]current_languageEnglishuh1h hh _documenthsourceNlineNubhcomment)}(h8SPDX-License-Identifier: GFDL-1.1-no-invariants-or-laterh]h8SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later}hhsbah}(h]h ]h"]h$]h&] xml:spacepreserveuh1hhhhhhU/var/lib/git/docbuild/linux/Documentation/userspace-api/media/v4l/ext-ctrls-fm-rx.rsthKubhtarget)}(h.. _fm-rx-controls:h]h}(h]h ]h"]h$]h&]refidfm-rx-controlsuh1hhKhhhhhhubhsection)}(hhh](htitle)}(hFM Receiver Control Referenceh]hFM Receiver Control Reference}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhhhhhKubh paragraph)}(hdThe FM Receiver (FM_RX) class includes controls for common features of FM Reception capable devices.h]hdThe FM Receiver (FM_RX) class includes controls for common features of FM Reception capable devices.}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK hhhhubh)}(h.. _fm-rx-control-id:h]h}(h]h ]h"]h$]h&]hfm-rx-control-iduh1hhK hhhhhhubh)}(hhh](h)}(hFM_RX Control IDsh]hFM_RX Control IDs}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhhhhhKubhdefinition_list)}(hhh](hdefinition_list_item)}(h``V4L2_CID_FM_RX_CLASS (class)`` The FM_RX class descriptor. Calling :ref:`VIDIOC_QUERYCTRL` for this control will return a description of this control class. h](hterm)}(h ``V4L2_CID_FM_RX_CLASS (class)``h]hliteral)}(hjh]hV4L2_CID_FM_RX_CLASS (class)}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubah}(h]h ]h"]h$]h&]uh1jhhhKhj ubh definition)}(hhh]h)}(h}The FM_RX class descriptor. Calling :ref:`VIDIOC_QUERYCTRL` for this control will return a description of this control class.h](h$The FM_RX class descriptor. Calling }(hj.hhhNhNubh)}(h:ref:`VIDIOC_QUERYCTRL`h]hinline)}(hj8h]hVIDIOC_QUERYCTRL}(hj<hhhNhNubah}(h]h ](xrefstdstd-refeh"]h$]h&]uh1j:hj6ubah}(h]h ]h"]h$]h&]refdoc'userspace-api/media/v4l/ext-ctrls-fm-rx refdomainjGreftyperef refexplicitrefwarn reftargetvidioc_queryctrluh1hhhhKhj.ubhB for this control will return a description of this control class.}(hj.hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKhj+ubah}(h]h ]h"]h$]h&]uh1j)hj ubeh}(h]h ]h"]h$]h&]uh1jhhhKhjubj )}(hW``V4L2_CID_RDS_RECEPTION (boolean)`` Enables/disables RDS reception by the radio tuner h](j)}(h$``V4L2_CID_RDS_RECEPTION (boolean)``h]j)}(hjwh]h V4L2_CID_RDS_RECEPTION (boolean)}(hjyhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjuubah}(h]h ]h"]h$]h&]uh1jhhhKhjqubj*)}(hhh]h)}(h1Enables/disables RDS reception by the radio tunerh]h1Enables/disables RDS reception by the radio tuner}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhKhjubah}(h]h ]h"]h$]h&]uh1j)hjqubeh}(h]h ]h"]h$]h&]uh1jhhhKhjhhubj )}(ht``V4L2_CID_RDS_RX_PTY (integer)`` Gets RDS Programme Type field. This encodes up to 31 pre-defined programme types. h](j)}(h!``V4L2_CID_RDS_RX_PTY (integer)``h]j)}(hjh]hV4L2_CID_RDS_RX_PTY (integer)}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubah}(h]h ]h"]h$]h&]uh1jhhhKhjubj*)}(hhh]h)}(hQGets RDS Programme Type field. This encodes up to 31 pre-defined programme types.h]hQGets RDS Programme Type field. This encodes up to 31 pre-defined programme types.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhKhjubah}(h]h ]h"]h$]h&]uh1j)hjubeh}(h]h ]h"]h$]h&]uh1jhhhKhjhhubj )}(hX``V4L2_CID_RDS_RX_PS_NAME (string)`` Gets the Programme Service name (PS_NAME). It is intended for static display on a receiver. It is the primary aid to listeners in programme service identification and selection. In Annex E of :ref:`iec62106`, the RDS specification, there is a full description of the correct character encoding for Programme Service name strings. Also from RDS specification, PS is usually a single eight character text. However, it is also possible to find receivers which can scroll strings sized as 8 x N characters. So, this control must be configured with steps of 8 characters. The result is it must always contain a string with size multiple of 8. h](j)}(h$``V4L2_CID_RDS_RX_PS_NAME (string)``h]j)}(hjh]h V4L2_CID_RDS_RX_PS_NAME (string)}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubah}(h]h ]h"]h$]h&]uh1jhhhK(hjubj*)}(hhh]h)}(hX}Gets the Programme Service name (PS_NAME). It is intended for static display on a receiver. It is the primary aid to listeners in programme service identification and selection. In Annex E of :ref:`iec62106`, the RDS specification, there is a full description of the correct character encoding for Programme Service name strings. Also from RDS specification, PS is usually a single eight character text. However, it is also possible to find receivers which can scroll strings sized as 8 x N characters. So, this control must be configured with steps of 8 characters. The result is it must always contain a string with size multiple of 8.h](hGets the Programme Service name (PS_NAME). It is intended for static display on a receiver. It is the primary aid to listeners in programme service identification and selection. In Annex E of }(hjhhhNhNubh)}(h:ref:`iec62106`h]j;)}(hj h]hiec62106}(hj hhhNhNubah}(h]h ](jFstdstd-refeh"]h$]h&]uh1j:hjubah}(h]h ]h"]h$]h&]refdocjS refdomainjreftyperef refexplicitrefwarnjYiec62106uh1hhhhKhjubhX, the RDS specification, there is a full description of the correct character encoding for Programme Service name strings. Also from RDS specification, PS is usually a single eight character text. However, it is also possible to find receivers which can scroll strings sized as 8 x N characters. So, this control must be configured with steps of 8 characters. The result is it must always contain a string with size multiple of 8.}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKhjubah}(h]h ]h"]h$]h&]uh1j)hjubeh}(h]h ]h"]h$]h&]uh1jhhhK(hjhhubj )}(hX1``V4L2_CID_RDS_RX_RADIO_TEXT (string)`` Gets the Radio Text info. It is a textual description of what is being broadcasted. RDS Radio Text can be applied when broadcaster wishes to transmit longer PS names, programme-related information or any other text. In these cases, RadioText can be used in addition to ``V4L2_CID_RDS_RX_PS_NAME``. The encoding for Radio Text strings is also fully described in Annex E of :ref:`iec62106`. The length of Radio Text strings depends on which RDS Block is being used to transmit it, either 32 (2A block) or 64 (2B block). However, it is also possible to find receivers which can scroll strings sized as 32 x N or 64 x N characters. So, this control must be configured with steps of 32 or 64 characters. The result is it must always contain a string with size multiple of 32 or 64. h](j)}(h'``V4L2_CID_RDS_RX_RADIO_TEXT (string)``h]j)}(hjCh]h#V4L2_CID_RDS_RX_RADIO_TEXT (string)}(hjEhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjAubah}(h]h ]h"]h$]h&]uh1jhhhK6hj=ubj*)}(hhh]h)}(hXGets the Radio Text info. It is a textual description of what is being broadcasted. RDS Radio Text can be applied when broadcaster wishes to transmit longer PS names, programme-related information or any other text. In these cases, RadioText can be used in addition to ``V4L2_CID_RDS_RX_PS_NAME``. The encoding for Radio Text strings is also fully described in Annex E of :ref:`iec62106`. The length of Radio Text strings depends on which RDS Block is being used to transmit it, either 32 (2A block) or 64 (2B block). However, it is also possible to find receivers which can scroll strings sized as 32 x N or 64 x N characters. So, this control must be configured with steps of 32 or 64 characters. The result is it must always contain a string with size multiple of 32 or 64.h](hX Gets the Radio Text info. It is a textual description of what is being broadcasted. RDS Radio Text can be applied when broadcaster wishes to transmit longer PS names, programme-related information or any other text. In these cases, RadioText can be used in addition to }(hj[hhhNhNubj)}(h``V4L2_CID_RDS_RX_PS_NAME``h]hV4L2_CID_RDS_RX_PS_NAME}(hjchhhNhNubah}(h]h ]h"]h$]h&]uh1jhj[ubhL. The encoding for Radio Text strings is also fully described in Annex E of }(hj[hhhNhNubh)}(h:ref:`iec62106`h]j;)}(hjwh]hiec62106}(hjyhhhNhNubah}(h]h ](jFstdstd-refeh"]h$]h&]uh1j:hjuubah}(h]h ]h"]h$]h&]refdocjS refdomainjreftyperef refexplicitrefwarnjYiec62106uh1hhhhK+hj[ubhX. The length of Radio Text strings depends on which RDS Block is being used to transmit it, either 32 (2A block) or 64 (2B block). However, it is also possible to find receivers which can scroll strings sized as 32 x N or 64 x N characters. So, this control must be configured with steps of 32 or 64 characters. The result is it must always contain a string with size multiple of 32 or 64.}(hj[hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhK+hjXubah}(h]h ]h"]h$]h&]uh1j)hj=ubeh}(h]h ]h"]h$]h&]uh1jhhhK6hjhhubj )}(hg``V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT (boolean)`` If set, then a traffic announcement is in progress. h](j)}(h2``V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT (boolean)``h]j)}(hjh]h.V4L2_CID_RDS_RX_TRAFFIC_ANNOUNCEMENT (boolean)}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubah}(h]h ]h"]h$]h&]uh1jhhhK9hjubj*)}(hhh]h)}(h3If set, then a traffic announcement is in progress.h]h3If set, then a traffic announcement is in progress.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK9hjubah}(h]h ]h"]h$]h&]uh1j)hjubeh}(h]h ]h"]h$]h&]uh1jhhhK9hjhhubj )}(hn``V4L2_CID_RDS_RX_TRAFFIC_PROGRAM (boolean)`` If set, then the tuned programme carries traffic announcements. h](j)}(h-``V4L2_CID_RDS_RX_TRAFFIC_PROGRAM (boolean)``h]j)}(hjh]h)V4L2_CID_RDS_RX_TRAFFIC_PROGRAM (boolean)}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubah}(h]h ]h"]h$]h&]uh1jhhhK