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