Documentation/DocBook/media/dvb/dvbproperty.xml

   1 <section id="FE_GET_SET_PROPERTY">
   2 <title><constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></title>
   3 <para>This section describes the DVB version 5 extention of the DVB-API, also
   4 called "S2API", as this API were added to provide support for DVB-S2. It was
   5 designed to be able to replace the old frontend API. Yet, the DISEQC and
   6 the capability ioctls weren't implemented yet via the new way.</para>
   7 <para>The typical usage for the <constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant>
   8 API is to replace the ioctl's were the <link linkend="dvb-frontend-parameters">
   9 struct <constant>dvb_frontend_parameters</constant></link> were used.</para>
  10 <section id="dtv-property">
  11 <title>DTV property type</title>
  12 <programlisting>
  13 /* Reserved fields should be set to 0 */
  14 struct dtv_property {
  15         __u32 cmd;
  16         union {
  17                 __u32 data;
  18                 struct {
  19                         __u8 data[32];
  20                         __u32 len;
  21                         __u32 reserved1[3];
  22                         void *reserved2;
  23                 } buffer;
  24         } u;
  25         int result;
  26 } __attribute__ ((packed));
  27
  28 /* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
  29 #define DTV_IOCTL_MAX_MSGS 64
  30 </programlisting>
  31 </section>
  32 <section id="dtv-properties">
  33 <title>DTV properties type</title>
  34 <programlisting>
  35 struct dtv_properties {
  36         __u32 num;
  37         struct dtv_property *props;
  38 };
  39 </programlisting>
  40 </section>
  41
  42 <section id="FE_GET_PROPERTY">
  43 <title>FE_GET_PROPERTY</title>
  44 <para>DESCRIPTION
  45 </para>
  46 <informaltable><tgroup cols="1"><tbody><row><entry
  47  align="char">
  48 <para>This ioctl call returns one or more frontend properties. This call only
  49  requires read-only access to the device.</para>
  50 </entry>
  51  </row></tbody></tgroup></informaltable>
  52 <para>SYNOPSIS
  53 </para>
  54 <informaltable><tgroup cols="1"><tbody><row><entry
  55  align="char">
  56 <para>int ioctl(int fd, int request = <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>,
  57  dtv_properties &#x22C6;props);</para>
  58 </entry>
  59  </row></tbody></tgroup></informaltable>
  60 <para>PARAMETERS
  61 </para>
  62 <informaltable><tgroup cols="2"><tbody><row><entry align="char">
  63 <para>int fd</para>
  64 </entry><entry
  65  align="char">
  66 <para>File descriptor returned by a previous call to open().</para>
  67 </entry>
  68  </row><row><entry
  69  align="char">
  70 <para>int num</para>
  71 </entry><entry
  72  align="char">
  73 <para>Equals <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> for this command.</para>
  74 </entry>
  75  </row><row><entry
  76  align="char">
  77 <para>struct dtv_property *props</para>
  78 </entry><entry
  79  align="char">
  80 <para>Points to the location where the front-end property commands are stored.</para>
  81 </entry>
  82  </row></tbody></tgroup></informaltable>
  83 &return-value-dvb;
  84 <informaltable><tgroup cols="2"><tbody><row>
  85   <entry align="char"><para>EINVAL</para></entry>
  86   <entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry>
  87  </row><row>
  88   <entry align="char"><para>ENOMEM</para></entry>
  89   <entry align="char"><para>Out of memory.</para></entry>
  90  </row><row>
  91   <entry align="char"><para>EFAULT</para></entry>
  92   <entry align="char"><para>Failure while copying data from/to userspace.</para></entry>
  93  </row><row>
  94   <entry align="char"><para>EOPNOTSUPP</para></entry>
  95   <entry align="char"><para>Property type not supported.</para></entry>
  96  </row></tbody></tgroup></informaltable>
  97 </section>
  98
  99 <section id="FE_SET_PROPERTY">
 100 <title>FE_SET_PROPERTY</title>
 101 <para>DESCRIPTION
 102 </para>
 103 <informaltable><tgroup cols="1"><tbody><row><entry
 104  align="char">
 105 <para>This ioctl call sets one or more frontend properties. This call only
 106  requires read-only access to the device.</para>
 107 </entry>
 108  </row></tbody></tgroup></informaltable>
 109 <para>SYNOPSIS
 110 </para>
 111 <informaltable><tgroup cols="1"><tbody><row><entry
 112  align="char">
 113 <para>int ioctl(int fd, int request = <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
 114  dtv_properties &#x22C6;props);</para>
 115 </entry>
 116  </row></tbody></tgroup></informaltable>
 117 <para>PARAMETERS
 118 </para>
 119 <informaltable><tgroup cols="2"><tbody><row><entry align="char">
 120 <para>int fd</para>
 121 </entry><entry
 122  align="char">
 123 <para>File descriptor returned by a previous call to open().</para>
 124 </entry>
 125  </row><row><entry
 126  align="char">
 127 <para>int num</para>
 128 </entry><entry
 129  align="char">
 130 <para>Equals <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link> for this command.</para>
 131 </entry>
 132  </row><row><entry
 133  align="char">
 134 <para>struct dtv_property *props</para>
 135 </entry><entry
 136  align="char">
 137 <para>Points to the location where the front-end property commands are stored.</para>
 138 </entry>
 139  </row></tbody></tgroup></informaltable>
 140 &return-value-dvb;
 141 <informaltable><tgroup cols="2"><tbody><row>
 142   <entry align="char"><para>EINVAL</para></entry>
 143   <entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry>
 144  </row><row>
 145   <entry align="char"><para>ENOMEM</para></entry>
 146   <entry align="char"><para>Out of memory.</para></entry>
 147  </row><row>
 148   <entry align="char"><para>EFAULT</para></entry>
 149   <entry align="char"><para>Failure while copying data from/to userspace.</para></entry>
 150  </row><row>
 151   <entry align="char"><para>EOPNOTSUPP</para></entry>
 152   <entry align="char"><para>Property type not supported.</para></entry>
 153  </row></tbody></tgroup></informaltable>
 154 </section>
 155
 156 <section>
 157         <title>Property types</title>
 158 <para>
 159 On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
 160 the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to
 161 get/set up to 64 properties. The actual meaning of each property is described on the next sections.
 162 </para>
 163
 164 <para>The available frontend property types are shown on the next section.</para>
 165 </section>
 166
 167 <section id="fe_property_parameters">
 168         <title>Digital TV property parameters</title>
 169         <section id="DTV-UNDEFINED">
 170         <title><constant>DTV_UNDEFINED</constant></title>
 171         <para>Used internally. A GET/SET operation for it won't change or return anything.</para>
 172         </section>
 173         <section id="DTV-TUNE">
 174         <title><constant>DTV_TUNE</constant></title>
 175         <para>Interpret the cache of data, build either a traditional frontend tunerequest so we can pass validation in the <constant>FE_SET_FRONTEND</constant> ioctl.</para>
 176         </section>
 177         <section id="DTV-CLEAR">
 178         <title><constant>DTV_CLEAR</constant></title>
 179         <para>Reset a cache of data specific to the frontend here. This does not effect hardware.</para>
 180         </section>
 181         <section id="DTV-FREQUENCY">
 182                 <title><constant>DTV_FREQUENCY</constant></title>
 183
 184                 <para>Central frequency of the channel, in HZ.</para>
 185
 186                 <para>Notes:</para>
 187                 <para>1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz.
 188                         E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
 189                         the channel which is 6MHz.</para>
 190
 191                 <para>2)As in ISDB-Tsb the channel consists of only one or three segments the
 192                         frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
 193                         central frequency of the channel is expected.</para>
 194         </section>
 195         <section id="DTV-MODULATION">
 196         <title><constant>DTV_MODULATION</constant></title>
 197 <para>Specifies the frontend modulation type for cable and satellite types. The modulation can be one of the types bellow:</para>
 198 <programlisting>
 199  typedef enum fe_modulation {
 200         QPSK,
 201         QAM_16,
 202         QAM_32,
 203         QAM_64,
 204         QAM_128,
 205         QAM_256,
 206         QAM_AUTO,
 207         VSB_8,
 208         VSB_16,
 209         PSK_8,
 210         APSK_16,
 211         APSK_32,
 212         DQPSK,
 213  } fe_modulation_t;
 214 </programlisting>
 215         </section>
 216         <section id="DTV-BANDWIDTH-HZ">
 217                 <title><constant>DTV_BANDWIDTH_HZ</constant></title>
 218
 219                 <para>Bandwidth for the channel, in HZ.</para>
 220
 221                 <para>Possible values:
 222                         <constant>1712000</constant>,
 223                         <constant>5000000</constant>,
 224                         <constant>6000000</constant>,
 225                         <constant>7000000</constant>,
 226                         <constant>8000000</constant>,
 227                         <constant>10000000</constant>.
 228                 </para>
 229
 230                 <para>Notes:</para>
 231
 232                 <para>1) For ISDB-T it should be always 6000000Hz (6MHz)</para>
 233                 <para>2) For ISDB-Tsb it can vary depending on the number of connected segments</para>
 234                 <para>3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth
 235                          for DVB-C depends on the symbol rate</para>
 236                 <para>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from
 237                         other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
 238                         DTV_ISDBT_SB_SEGMENT_COUNT).</para>
 239                 <para>5) DVB-T supports 6, 7 and 8MHz.</para>
 240                 <para>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</para>
 241         </section>
 242         <section id="DTV-INVERSION">
 243         <title><constant>DTV_INVERSION</constant></title>
 244         <para>The Inversion field can take one of these values:
 245         </para>
 246         <programlisting>
 247         typedef enum fe_spectral_inversion {
 248                 INVERSION_OFF,
 249                 INVERSION_ON,
 250                 INVERSION_AUTO
 251         } fe_spectral_inversion_t;
 252         </programlisting>
 253         <para>It indicates if spectral inversion should be presumed or not. In the automatic setting
 254         (<constant>INVERSION_AUTO</constant>) the hardware will try to figure out the correct setting by
 255         itself.
 256         </para>
 257         </section>
 258         <section id="DTV-DISEQC-MASTER">
 259         <title><constant>DTV_DISEQC_MASTER</constant></title>
 260         <para>Currently not implemented.</para>
 261         </section>
 262         <section id="DTV-SYMBOL-RATE">
 263         <title><constant>DTV_SYMBOL_RATE</constant></title>
 264         <para>Digital TV symbol rate, in bauds (symbols/second). Used on cable standards.</para>
 265         </section>
 266         <section id="DTV-INNER-FEC">
 267         <title><constant>DTV_INNER_FEC</constant></title>
 268         <para>Used cable/satellite transmissions. The acceptable values are:
 269         </para>
 270         <programlisting>
 271 typedef enum fe_code_rate {
 272         FEC_NONE = 0,
 273         FEC_1_2,
 274         FEC_2_3,
 275         FEC_3_4,
 276         FEC_4_5,
 277         FEC_5_6,
 278         FEC_6_7,
 279         FEC_7_8,
 280         FEC_8_9,
 281         FEC_AUTO,
 282         FEC_3_5,
 283         FEC_9_10,
 284 } fe_code_rate_t;
 285         </programlisting>
 286         <para>which correspond to error correction rates of 1/2, 2/3, etc.,
 287         no error correction or auto detection.</para>
 288         </section>
 289         <section id="DTV-VOLTAGE">
 290         <title><constant>DTV_VOLTAGE</constant></title>
 291         <para>The voltage is usually used with non-DiSEqC capable LNBs to switch
 292         the polarzation (horizontal/vertical). When using DiSEqC epuipment this
 293         voltage has to be switched consistently to the DiSEqC commands as
 294         described in the DiSEqC spec.</para>
 295         <programlisting>
 296                 typedef enum fe_sec_voltage {
 297                 SEC_VOLTAGE_13,
 298                 SEC_VOLTAGE_18
 299                 } fe_sec_voltage_t;
 300         </programlisting>
 301         </section>
 302         <section id="DTV-TONE">
 303         <title><constant>DTV_TONE</constant></title>
 304         <para>Currently not used.</para>
 305         </section>
 306         <section id="DTV-PILOT">
 307         <title><constant>DTV_PILOT</constant></title>
 308         <para>Sets DVB-S2 pilot</para>
 309         <section id="fe-pilot-t">
 310                 <title>fe_pilot type</title>
 311                 <programlisting>
 312 typedef enum fe_pilot {
 313         PILOT_ON,
 314         PILOT_OFF,
 315         PILOT_AUTO,
 316 } fe_pilot_t;
 317                 </programlisting>
 318                 </section>
 319         </section>
 320         <section id="DTV-ROLLOFF">
 321         <title><constant>DTV_ROLLOFF</constant></title>
 322                 <para>Sets DVB-S2 rolloff</para>
 323
 324         <section id="fe-rolloff-t">
 325                 <title>fe_rolloff type</title>
 326                 <programlisting>
 327 typedef enum fe_rolloff {
 328         ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
 329         ROLLOFF_20,
 330         ROLLOFF_25,
 331         ROLLOFF_AUTO,
 332 } fe_rolloff_t;
 333                 </programlisting>
 334                 </section>
 335         </section>
 336         <section id="DTV-DISEQC-SLAVE-REPLY">
 337         <title><constant>DTV_DISEQC_SLAVE_REPLY</constant></title>
 338         <para>Currently not implemented.</para>
 339         </section>
 340         <section id="DTV-FE-CAPABILITY-COUNT">
 341         <title><constant>DTV_FE_CAPABILITY_COUNT</constant></title>
 342         <para>Currently not implemented.</para>
 343         </section>
 344         <section id="DTV-FE-CAPABILITY">
 345         <title><constant>DTV_FE_CAPABILITY</constant></title>
 346         <para>Currently not implemented.</para>
 347         </section>
 348         <section id="DTV-DELIVERY-SYSTEM">
 349                 <title><constant>DTV_DELIVERY_SYSTEM</constant></title>
 350                 <para>Specifies the type of Delivery system</para>
 351                 <section id="fe-delivery-system-t">
 352                 <title>fe_delivery_system type</title>
 353                 <para>Possible values: </para>
 354 <programlisting>
 355 typedef enum fe_delivery_system {
 356         SYS_UNDEFINED,
 357         SYS_DVBC_ANNEX_AC,
 358         SYS_DVBC_ANNEX_B,
 359         SYS_DVBT,
 360         SYS_DSS,
 361         SYS_DVBS,
 362         SYS_DVBS2,
 363         SYS_DVBH,
 364         SYS_ISDBT,
 365         SYS_ISDBS,
 366         SYS_ISDBC,
 367         SYS_ATSC,
 368         SYS_ATSCMH,
 369         SYS_DMBTH,
 370         SYS_CMMB,
 371         SYS_DAB,
 372         SYS_DVBT2,
 373 } fe_delivery_system_t;
 374 </programlisting>
 375                 </section>
 376         </section>
 377         <section id="DTV-ISDBT-PARTIAL-RECEPTION">
 378                 <title><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></title>
 379
 380                 <para>If <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '0' this bit-field represents whether
 381                         the channel is in partial reception mode or not.</para>
 382
 383                 <para>If '1' <constant>DTV_ISDBT_LAYERA_*</constant> values are assigned to the center segment and
 384                         <constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant> has to be '1'.</para>
 385
 386                 <para>If in addition <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'
 387                         <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> represents whether this ISDB-Tsb channel
 388                         is consisting of one segment and layer or three segments and two layers.</para>
 389
 390                 <para>Possible values: 0, 1, -1 (AUTO)</para>
 391         </section>
 392         <section id="DTV-ISDBT-SOUND-BROADCASTING">
 393                 <title><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></title>
 394
 395                 <para>This field represents whether the other DTV_ISDBT_*-parameters are
 396                         referring to an ISDB-T and an ISDB-Tsb channel. (See also
 397                         <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>).</para>
 398
 399                 <para>Possible values: 0, 1, -1 (AUTO)</para>
 400         </section>
 401         <section id="DTV-ISDBT-SB-SUBCHANNEL-ID">
 402                 <title><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></title>
 403
 404                 <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para>
 405
 406                 <para>(Note of the author: This might not be the correct description of the
 407                         <constant>SUBCHANNEL-ID</constant> in all details, but it is my understanding of the technical
 408                         background needed to program a device)</para>
 409
 410                 <para>An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a
 411                         set of connected ISDB-Tsb channels. In this set of channels every
 412                         channel can be received independently. The number of connected
 413                         ISDB-Tsb segment can vary, e.g. depending on the frequency spectrum
 414                         bandwidth available.</para>
 415
 416                 <para>Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The
 417                         broadcaster has several possibilities to put those channels in the
 418                         air: Assuming a normal 13-segment ISDB-T spectrum he can align the 8
 419                         segments from position 1-8 to 5-13 or anything in between.</para>
 420
 421                 <para>The underlying layer of segments are subchannels: each segment is
 422                         consisting of several subchannels with a predefined IDs. A sub-channel
 423                         is used to help the demodulator to synchronize on the channel.</para>
 424
 425                 <para>An ISDB-T channel is always centered over all sub-channels. As for
 426                         the example above, in ISDB-Tsb it is no longer as simple as that.</para>
 427
 428                 <para><constant>The DTV_ISDBT_SB_SUBCHANNEL_ID</constant> parameter is used to give the
 429                         sub-channel ID of the segment to be demodulated.</para>
 430
 431                 <para>Possible values: 0 .. 41, -1 (AUTO)</para>
 432         </section>
 433         <section id="DTV-ISDBT-SB-SEGMENT-IDX">
 434                 <title><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></title>
 435                 <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para>
 436                 <para><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant> gives the index of the segment to be
 437                         demodulated for an ISDB-Tsb channel where several of them are
 438                         transmitted in the connected manner.</para>
 439                 <para>Possible values: 0 .. <constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> - 1</para>
 440                 <para>Note: This value cannot be determined by an automatic channel search.</para>
 441         </section>
 442         <section id="DTV-ISDBT-SB-SEGMENT-COUNT">
 443                 <title><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></title>
 444                 <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para>
 445                 <para><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> gives the total count of connected ISDB-Tsb
 446                         channels.</para>
 447                 <para>Possible values: 1 .. 13</para>
 448                 <para>Note: This value cannot be determined by an automatic channel search.</para>
 449         </section>
 450         <section id="isdb-hierq-layers">
 451                 <title><constant>DTV-ISDBT-LAYER*</constant> parameters</title>
 452                 <para>ISDB-T channels can be coded hierarchically. As opposed to DVB-T in
 453                         ISDB-T hierarchical layers can be decoded simultaneously. For that
 454                         reason a ISDB-T demodulator has 3 viterbi and 3 reed-solomon-decoders.</para>
 455                 <para>ISDB-T has 3 hierarchical layers which each can use a part of the
 456                         available segments. The total number of segments over all layers has
 457                         to 13 in ISDB-T.</para>
 458                 <para>There are 3 parameter sets, for Layers A, B and C.</para>
 459                 <section id="DTV-ISDBT-LAYER-ENABLED">
 460                         <title><constant>DTV_ISDBT_LAYER_ENABLED</constant></title>
 461                         <para>Hierarchical reception in ISDB-T is achieved by enabling or disabling
 462                                 layers in the decoding process. Setting all bits of
 463                                 <constant>DTV_ISDBT_LAYER_ENABLED</constant> to '1' forces all layers (if applicable) to be
 464                                 demodulated. This is the default.</para>
 465                         <para>If the channel is in the partial reception mode
 466                                 (<constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> = 1) the central segment can be decoded
 467                                 independently of the other 12 segments. In that mode layer A has to
 468                                 have a <constant>SEGMENT_COUNT</constant> of 1.</para>
 469                         <para>In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb
 470                                 according to <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>. <constant>SEGMENT_COUNT</constant> must be filled
 471                                 accordingly.</para>
 472                         <para>Possible values: 0x1, 0x2, 0x4 (|-able)</para>
 473                         <para><constant>DTV_ISDBT_LAYER_ENABLED[0:0]</constant> - layer A</para>
 474                         <para><constant>DTV_ISDBT_LAYER_ENABLED[1:1]</constant> - layer B</para>
 475                         <para><constant>DTV_ISDBT_LAYER_ENABLED[2:2]</constant> - layer C</para>
 476                         <para><constant>DTV_ISDBT_LAYER_ENABLED[31:3]</constant> unused</para>
 477                 </section>
 478                 <section id="DTV-ISDBT-LAYER-FEC">
 479                         <title><constant>DTV_ISDBT_LAYER*_FEC</constant></title>
 480                         <para>Possible values: <constant>FEC_AUTO</constant>, <constant>FEC_1_2</constant>, <constant>FEC_2_3</constant>, <constant>FEC_3_4</constant>, <constant>FEC_5_6</constant>, <constant>FEC_7_8</constant></para>
 481                 </section>
 482                 <section id="DTV-ISDBT-LAYER-MODULATION">
 483                         <title><constant>DTV_ISDBT_LAYER*_MODULATION</constant></title>
 484                         <para>Possible values: <constant>QAM_AUTO</constant>, QP<constant>SK, QAM_16</constant>, <constant>QAM_64</constant>, <constant>DQPSK</constant></para>
 485                         <para>Note: If layer C is <constant>DQPSK</constant> layer B has to be <constant>DQPSK</constant>. If layer B is <constant>DQPSK</constant>
 486                                 and <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>=0 layer has to be <constant>DQPSK</constant>.</para>
 487                 </section>
 488                 <section id="DTV-ISDBT-LAYER-SEGMENT-COUNT">
 489                         <title><constant>DTV_ISDBT_LAYER*_SEGMENT_COUNT</constant></title>
 490                         <para>Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)</para>
 491                         <para>Note: Truth table for <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> and
 492                                 <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> and <constant>LAYER</constant>*_SEGMENT_COUNT</para>
 493                         <informaltable id="isdbt-layer_seg-cnt-table">
 494                                 <tgroup cols="6">
 495                                         <tbody>
 496                                                 <row>
 497                                                         <entry>PR</entry>
 498                                                         <entry>SB</entry>
 499                                                         <entry>Layer A width</entry>
 500                                                         <entry>Layer B width</entry>
 501                                                         <entry>Layer C width</entry>
 502                                                         <entry>total width</entry>
 503                                                 </row>
 504                                                 <row>
 505                                                         <entry>0</entry>
 506                                                         <entry>0</entry>
 507                                                         <entry>1 .. 13</entry>
 508                                                         <entry>1 .. 13</entry>
 509                                                         <entry>1 .. 13</entry>
 510                                                         <entry>13</entry>
 511                                                 </row>
 512                                                 <row>
 513                                                         <entry>1</entry>
 514                                                         <entry>0</entry>
 515                                                         <entry>1</entry>
 516                                                         <entry>1 .. 13</entry>
 517                                                         <entry>1 .. 13</entry>
 518                                                         <entry>13</entry>
 519                                                 </row>
 520                                                 <row>
 521                                                         <entry>0</entry>
 522                                                         <entry>1</entry>
 523                                                         <entry>1</entry>
 524                                                         <entry>0</entry>
 525                                                         <entry>0</entry>
 526                                                         <entry>1</entry>
 527                                                 </row>
 528                                                 <row>
 529                                                         <entry>1</entry>
 530                                                         <entry>1</entry>
 531                                                         <entry>1</entry>
 532                                                         <entry>2</entry>
 533                                                         <entry>0</entry>
 534                                                         <entry>13</entry>
 535                                                 </row>
 536                                         </tbody>
 537                                 </tgroup>
 538                         </informaltable>
 539                 </section>
 540                 <section id="DTV-ISDBT-LAYER-TIME-INTERLEAVING">
 541                         <title><constant>DTV_ISDBT_LAYER*_TIME_INTERLEAVING</constant></title>
 542                         <para>Possible values: 0, 1, 2, 3, -1 (AUTO)</para>
 543                         <para>Note: The real inter-leaver depth-names depend on the mode (fft-size); the values
 544                                 here are referring to what can be found in the TMCC-structure -
 545                                 independent of the mode.</para>
 546                 </section>
 547         </section>
 548         <section id="DTV-API-VERSION">
 549         <title><constant>DTV_API_VERSION</constant></title>
 550         <para>Returns the major/minor version of the DVB API</para>
 551         </section>
 552         <section id="DTV-CODE-RATE-HP">
 553         <title><constant>DTV_CODE_RATE_HP</constant></title>
 554         <para>Used on terrestrial transmissions. The acceptable values are:
 555         </para>
 556         <programlisting>
 557 typedef enum fe_code_rate {
 558         FEC_NONE = 0,
 559         FEC_1_2,
 560         FEC_2_3,
 561         FEC_3_4,
 562         FEC_4_5,
 563         FEC_5_6,
 564         FEC_6_7,
 565         FEC_7_8,
 566         FEC_8_9,
 567         FEC_AUTO,
 568         FEC_3_5,
 569         FEC_9_10,
 570 } fe_code_rate_t;
 571         </programlisting>
 572         </section>
 573         <section id="DTV-CODE-RATE-LP">
 574         <title><constant>DTV_CODE_RATE_LP</constant></title>
 575         <para>Used on terrestrial transmissions. The acceptable values are:
 576         </para>
 577         <programlisting>
 578 typedef enum fe_code_rate {
 579         FEC_NONE = 0,
 580         FEC_1_2,
 581         FEC_2_3,
 582         FEC_3_4,
 583         FEC_4_5,
 584         FEC_5_6,
 585         FEC_6_7,
 586         FEC_7_8,
 587         FEC_8_9,
 588         FEC_AUTO,
 589         FEC_3_5,
 590         FEC_9_10,
 591 } fe_code_rate_t;
 592         </programlisting>
 593         </section>
 594         <section id="DTV-GUARD-INTERVAL">
 595                 <title><constant>DTV_GUARD_INTERVAL</constant></title>
 596
 597                 <para>Possible values are:</para>
 598 <programlisting>
 599 typedef enum fe_guard_interval {
 600         GUARD_INTERVAL_1_32,
 601         GUARD_INTERVAL_1_16,
 602         GUARD_INTERVAL_1_8,
 603         GUARD_INTERVAL_1_4,
 604         GUARD_INTERVAL_AUTO,
 605         GUARD_INTERVAL_1_128,
 606         GUARD_INTERVAL_19_128,
 607         GUARD_INTERVAL_19_256,
 608 } fe_guard_interval_t;
 609 </programlisting>
 610
 611                 <para>Notes:</para>
 612                 <para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
 613                         try to find the correct guard interval (if capable) and will use TMCC to fill
 614                         in the missing parameters.</para>
 615                 <para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para>
 616         </section>
 617         <section id="DTV-TRANSMISSION-MODE">
 618                 <title><constant>DTV_TRANSMISSION_MODE</constant></title>
 619
 620                 <para>Specifies the number of carriers used by the standard</para>
 621
 622                 <para>Possible values are:</para>
 623 <programlisting>
 624 typedef enum fe_transmit_mode {
 625         TRANSMISSION_MODE_2K,
 626         TRANSMISSION_MODE_8K,
 627         TRANSMISSION_MODE_AUTO,
 628         TRANSMISSION_MODE_4K,
 629         TRANSMISSION_MODE_1K,
 630         TRANSMISSION_MODE_16K,
 631         TRANSMISSION_MODE_32K,
 632 } fe_transmit_mode_t;
 633 </programlisting>
 634                 <para>Notes:</para>
 635                 <para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
 636                         'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para>
 637
 638                 <para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the
 639                         hardware will try to find the correct FFT-size (if capable) and will
 640                         use TMCC to fill in the missing parameters.</para>
 641                 <para>3) DVB-T specifies 2K and 8K as valid sizes.</para>
 642                 <para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para>
 643         </section>
 644         <section id="DTV-HIERARCHY">
 645         <title><constant>DTV_HIERARCHY</constant></title>
 646         <para>Frontend hierarchy</para>
 647         <programlisting>
 648 typedef enum fe_hierarchy {
 649          HIERARCHY_NONE,
 650          HIERARCHY_1,
 651          HIERARCHY_2,
 652          HIERARCHY_4,
 653          HIERARCHY_AUTO
 654  } fe_hierarchy_t;
 655         </programlisting>
 656         </section>
 657         <section id="DTV-ISDBS-TS-ID">
 658         <title><constant>DTV_ISDBS_TS_ID</constant></title>
 659         <para>Currently unused.</para>
 660         </section>
 661         <section id="DTV-DVBT2-PLP-ID">
 662                 <title><constant>DTV_DVBT2_PLP_ID</constant></title>
 663                 <para>DVB-T2 supports Physical Layer Pipes (PLP) to allow transmission of
 664                         many data types via a single multiplex. The API will soon support this
 665                         at which point this section will be expanded.</para>
 666         </section>
 667 </section>
 668         <section id="frontend-property-terrestrial-systems">
 669         <title>Properties used on terrestrial delivery systems</title>
 670                 <section id="dvbt-params">
 671                         <title>DVB-T delivery system</title>
 672                         <para>The following parameters are valid for DVB-T:</para>
 673                         <itemizedlist mark='opencircle'>
 674                                 <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 675                                 <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 676                                 <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 677                                 <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 678                                 <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 679                                 <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
 680                                 <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
 681                                 <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 682                                 <listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
 683                                 <listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
 684                                 <listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
 685                                 <listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
 686                                 <listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
 687                         </itemizedlist>
 688                 </section>
 689                 <section id="dvbt2-params">
 690                         <title>DVB-T2 delivery system</title>
 691                         <para>DVB-T2 support is currently in the early stages
 692                         of development, so expect that this section maygrow and become
 693                         more detailed with time.</para>
 694                 <para>The following parameters are valid for DVB-T2:</para>
 695                 <itemizedlist mark='opencircle'>
 696                         <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 697                         <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 698                         <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 699                         <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 700                         <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 701                         <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
 702                         <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
 703                         <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 704                         <listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
 705                         <listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
 706                         <listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
 707                         <listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
 708                         <listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
 709                         <listitem><para><link linkend="DTV-DVBT2-PLP-ID"><constant>DTV_DVBT2_PLP_ID</constant></link></para></listitem>
 710                 </itemizedlist>
 711                 </section>
 712                 <section id="isdbt">
 713                 <title>ISDB-T delivery system</title>
 714                 <para>This ISDB-T/ISDB-Tsb API extension should reflect all information
 715                         needed to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible
 716                         that some very sophisticated devices won't need certain parameters to
 717                         tune.</para>
 718                 <para>The information given here should help application writers to know how
 719                         to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API.</para>
 720                 <para>The details given here about ISDB-T and ISDB-Tsb are just enough to
 721                         basically show the dependencies between the needed parameter values,
 722                         but surely some information is left out. For more detailed information
 723                         see the following documents:</para>
 724                 <para>ARIB STD-B31 - "Transmission System for Digital Terrestrial
 725                         Television Broadcasting" and</para>
 726                 <para>ARIB TR-B14 - "Operational Guidelines for Digital Terrestrial
 727                         Television Broadcasting".</para>
 728                 <para>In order to understand the ISDB specific parameters,
 729                         one has to have some knowledge the channel structure in
 730                         ISDB-T and ISDB-Tsb. I.e. it has to be known to
 731                         the reader that an ISDB-T channel consists of 13 segments,
 732                         that it can have up to 3 layer sharing those segments,
 733                         and things like that.</para>
 734                 <para>The following parameters are valid for ISDB-T:</para>
 735                 <itemizedlist mark='opencircle'>
 736                         <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 737                         <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 738                         <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 739                         <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 740                         <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 741                         <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
 742                         <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
 743                         <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 744                         <listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
 745                         <listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
 746                         <listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
 747                         <listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
 748                         <listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
 749                         <listitem><para><link linkend="DTV-ISDBT-LAYER-ENABLED"><constant>DTV_ISDBT_LAYER_ENABLED</constant></link></para></listitem>
 750                         <listitem><para><link linkend="DTV-ISDBT-PARTIAL-RECEPTION"><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></link></para></listitem>
 751                         <listitem><para><link linkend="DTV-ISDBT-SOUND-BROADCASTING"><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></link></para></listitem>
 752                         <listitem><para><link linkend="DTV-ISDBT-SB-SUBCHANNEL-ID"><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></link></para></listitem>
 753                         <listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-IDX"><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></link></para></listitem>
 754                         <listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-COUNT"><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></link></para></listitem>
 755                         <listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERA_FEC</constant></link></para></listitem>
 756                         <listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERA_MODULATION</constant></link></para></listitem>
 757                         <listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant></link></para></listitem>
 758                         <listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERA_TIME_INTERLEAVING</constant></link></para></listitem>
 759                         <listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERB_FEC</constant></link></para></listitem>
 760                         <listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERB_MODULATION</constant></link></para></listitem>
 761                         <listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERB_SEGMENT_COUNT</constant></link></para></listitem>
 762                         <listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERB_TIME_INTERLEAVING</constant></link></para></listitem>
 763                         <listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERC_FEC</constant></link></para></listitem>
 764                         <listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERC_MODULATION</constant></link></para></listitem>
 765                         <listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERC_SEGMENT_COUNT</constant></link></para></listitem>
 766                         <listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERC_TIME_INTERLEAVING</constant></link></para></listitem>
 767                 </itemizedlist>
 768                 </section>
 769                 <section id="atsc-params">
 770                         <title>ATSC delivery system</title>
 771                         <para>The following parameters are valid for ATSC:</para>
 772                         <itemizedlist mark='opencircle'>
 773                                 <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 774                                 <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 775                                 <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 776                                 <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 777                                 <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 778                                 <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
 779                                 <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
 780                         </itemizedlist>
 781                 </section>
 782         </section>
 783         <section id="frontend-property-cable-systems">
 784         <title>Properties used on cable delivery systems</title>
 785         <section id="dvbc-params">
 786                 <title>DVB-C delivery system</title>
 787                 <para>The DVB-C Annex-A/C is the widely used cable standard. Transmission uses QAM modulation.</para>
 788                 <para>The following parameters are valid for DVB-C Annex A/C:</para>
 789                 <itemizedlist mark='opencircle'>
 790                         <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 791                         <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 792                         <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 793                         <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 794                         <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 795                         <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
 796                         <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 797                         <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
 798                         <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
 799                 </itemizedlist>
 800         </section>
 801         <section id="dvbc-annex-b-params">
 802                 <title>DVB-C Annex B delivery system</title>
 803                 <para>The DVB-C Annex-B is only used on a few Countries like the United States.</para>
 804                 <para>The following parameters are valid for DVB-C Annex B:</para>
 805                 <itemizedlist mark='opencircle'>
 806                         <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 807                         <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 808                         <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 809                         <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 810                         <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 811                         <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
 812                         <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 813                 </itemizedlist>
 814         </section>
 815         </section>
 816         <section id="frontend-property-satellital-systems">
 817         <title>Properties used on satellital delivery systems</title>
 818         <section id="dvbs-params">
 819                 <title>DVB-S delivery system</title>
 820                 <para>The following parameters are valid for DVB-S:</para>
 821                 <itemizedlist mark='opencircle'>
 822                         <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 823                         <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 824                         <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 825                         <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 826                         <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 827                         <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 828                         <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
 829                         <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
 830                 </itemizedlist>
 831                 <para>Future implementations might add those two missing parameters:</para>
 832                 <itemizedlist mark='opencircle'>
 833                         <listitem><para><link linkend="DTV-DISEQC-MASTER"><constant>DTV_DISEQC_MASTER</constant></link></para></listitem>
 834                         <listitem><para><link linkend="DTV-DISEQC-SLAVE-REPLY"><constant>DTV_DISEQC_SLAVE_REPLY</constant></link></para></listitem>
 835                 </itemizedlist>
 836         </section>
 837         <section id="dvbs2-params">
 838                 <title>DVB-S2 delivery system</title>
 839                 <para>The following parameters are valid for DVB-S2:</para>
 840                 <itemizedlist mark='opencircle'>
 841                         <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 842                         <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 843                         <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 844                         <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 845                         <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 846                         <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 847                         <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
 848                         <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
 849                         <listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem>
 850                         <listitem><para><link linkend="DTV-TONE"><constant>DTV_TONE</constant></link></para></listitem>
 851                         <listitem><para><link linkend="DTV-PILOT"><constant>DTV_PILOT</constant></link></para></listitem>
 852                         <listitem><para><link linkend="DTV-ROLLOFF"><constant>DTV_ROLLOFF</constant></link></para></listitem>
 853                 </itemizedlist>
 854                 <para>Future implementations might add those two missing parameters:</para>
 855                 <itemizedlist mark='opencircle'>
 856                         <listitem><para><link linkend="DTV-DISEQC-MASTER"><constant>DTV_DISEQC_MASTER</constant></link></para></listitem>
 857                         <listitem><para><link linkend="DTV-DISEQC-SLAVE-REPLY"><constant>DTV_DISEQC_SLAVE_REPLY</constant></link></para></listitem>
 858                 </itemizedlist>
 859         </section>
 860         <section id="isdbs-params">
 861                 <title>ISDB-S delivery system</title>
 862                 <para>The following parameters are valid for ISDB-S:</para>
 863                 <itemizedlist mark='opencircle'>
 864                         <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
 865                         <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
 866                         <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
 867                         <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
 868                         <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
 869                         <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
 870                         <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
 871                         <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
 872                         <listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem>
 873                         <listitem><para><link linkend="DTV-ISDBS-TS-ID"><constant>DTV_ISDBS_TS_ID</constant></link></para></listitem>
 874                 </itemizedlist>
 875         </section>
 876         </section>
 877 </section>