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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:02 EST.

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 extension 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-stats">
11	<title>DTV stats type</title>
12	<programlisting>
13	struct dtv_stats {
14		__u8 scale;	/* enum fecap_scale_params type */
15		union {
16			__u64 uvalue;	/* for counters and relative scales */
17			__s64 svalue;	/* for 1/1000 dB measures */
18		};
19	} __packed;
20	</programlisting>
21	</section>
22	<section id="dtv-fe-stats">
23	<title>DTV stats type</title>
24	<programlisting>
25	#define MAX_DTV_STATS   4
26	
27	struct dtv_fe_stats {
28		__u8 len;
29		struct dtv_stats stat[MAX_DTV_STATS];
30	} __packed;
31	</programlisting>
32	</section>
33	
34	<section id="dtv-property">
35	<title>DTV property type</title>
36	<programlisting>
37	/* Reserved fields should be set to 0 */
38	
39	struct dtv_property {
40		__u32 cmd;
41		__u32 reserved[3];
42		union {
43			__u32 data;
44			struct dtv_fe_stats st;
45			struct {
46				__u8 data[32];
47				__u32 len;
48				__u32 reserved1[3];
49				void *reserved2;
50			} buffer;
51		} u;
52		int result;
53	} __attribute__ ((packed));
54	
55	/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
56	#define DTV_IOCTL_MAX_MSGS 64
57	</programlisting>
58	</section>
59	<section id="dtv-properties">
60	<title>DTV properties type</title>
61	<programlisting>
62	struct dtv_properties {
63		__u32 num;
64		struct dtv_property *props;
65	};
66	</programlisting>
67	</section>
68	
69	<section id="FE_GET_PROPERTY">
70	<title>FE_GET_PROPERTY</title>
71	<para>DESCRIPTION
72	</para>
73	<informaltable><tgroup cols="1"><tbody><row><entry
74	 align="char">
75	<para>This ioctl call returns one or more frontend properties. This call only
76	 requires read-only access to the device.</para>
77	</entry>
78	 </row></tbody></tgroup></informaltable>
79	<para>SYNOPSIS
80	</para>
81	<informaltable><tgroup cols="1"><tbody><row><entry
82	 align="char">
83	<para>int ioctl(int fd, int request = <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>,
84	 dtv_properties &#x22C6;props);</para>
85	</entry>
86	 </row></tbody></tgroup></informaltable>
87	<para>PARAMETERS
88	</para>
89	<informaltable><tgroup cols="2"><tbody><row><entry align="char">
90	<para>int fd</para>
91	</entry><entry
92	 align="char">
93	<para>File descriptor returned by a previous call to open().</para>
94	</entry>
95	 </row><row><entry
96	 align="char">
97	<para>int num</para>
98	</entry><entry
99	 align="char">
100	<para>Equals <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> for this command.</para>
101	</entry>
102	 </row><row><entry
103	 align="char">
104	<para>struct dtv_property *props</para>
105	</entry><entry
106	 align="char">
107	<para>Points to the location where the front-end property commands are stored.</para>
108	</entry>
109	 </row></tbody></tgroup></informaltable>
110	&return-value-dvb;
111	<informaltable><tgroup cols="2"><tbody><row>
112	  <entry align="char"><para>EOPNOTSUPP</para></entry>
113	  <entry align="char"><para>Property type not supported.</para></entry>
114	 </row></tbody></tgroup></informaltable>
115	</section>
116	
117	<section id="FE_SET_PROPERTY">
118	<title>FE_SET_PROPERTY</title>
119	<para>DESCRIPTION
120	</para>
121	<informaltable><tgroup cols="1"><tbody><row><entry
122	 align="char">
123	<para>This ioctl call sets one or more frontend properties. This call only
124	 requires read-only access to the device.</para>
125	</entry>
126	 </row></tbody></tgroup></informaltable>
127	<para>SYNOPSIS
128	</para>
129	<informaltable><tgroup cols="1"><tbody><row><entry
130	 align="char">
131	<para>int ioctl(int fd, int request = <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
132	 dtv_properties &#x22C6;props);</para>
133	</entry>
134	 </row></tbody></tgroup></informaltable>
135	<para>PARAMETERS
136	</para>
137	<informaltable><tgroup cols="2"><tbody><row><entry align="char">
138	<para>int fd</para>
139	</entry><entry
140	 align="char">
141	<para>File descriptor returned by a previous call to open().</para>
142	</entry>
143	 </row><row><entry
144	 align="char">
145	<para>int num</para>
146	</entry><entry
147	 align="char">
148	<para>Equals <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link> for this command.</para>
149	</entry>
150	 </row><row><entry
151	 align="char">
152	<para>struct dtv_property *props</para>
153	</entry><entry
154	 align="char">
155	<para>Points to the location where the front-end property commands are stored.</para>
156	</entry>
157	 </row></tbody></tgroup></informaltable>
158	&return-value-dvb;
159	<informaltable><tgroup cols="2"><tbody><row>
160	  <entry align="char"><para>EOPNOTSUPP</para></entry>
161	  <entry align="char"><para>Property type not supported.</para></entry>
162	 </row></tbody></tgroup></informaltable>
163	</section>
164	
165	<section>
166		<title>Property types</title>
167	<para>
168	On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
169	the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to
170	get/set up to 64 properties. The actual meaning of each property is described on the next sections.
171	</para>
172	
173	<para>The available frontend property types are shown on the next section.</para>
174	</section>
175	
176	<section id="fe_property_parameters">
177		<title>Digital TV property parameters</title>
178		<section id="DTV-UNDEFINED">
179		<title><constant>DTV_UNDEFINED</constant></title>
180		<para>Used internally. A GET/SET operation for it won't change or return anything.</para>
181		</section>
182		<section id="DTV-TUNE">
183		<title><constant>DTV_TUNE</constant></title>
184		<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>
185		</section>
186		<section id="DTV-CLEAR">
187		<title><constant>DTV_CLEAR</constant></title>
188		<para>Reset a cache of data specific to the frontend here. This does not effect hardware.</para>
189		</section>
190		<section id="DTV-FREQUENCY">
191			<title><constant>DTV_FREQUENCY</constant></title>
192	
193			<para>Central frequency of the channel.</para>
194	
195			<para>Notes:</para>
196			<para>1)For satellital delivery systems, it is measured in kHz.
197				For the other ones, it is measured in Hz.</para>
198			<para>2)For ISDB-T, the channels are usually transmitted with an offset of 143kHz.
199				E.g. a valid frequency could be 474143 kHz. The stepping is bound to the bandwidth of
200				the channel which is 6MHz.</para>
201	
202			<para>3)As in ISDB-Tsb the channel consists of only one or three segments the
203				frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
204				central frequency of the channel is expected.</para>
205		</section>
206		<section id="DTV-MODULATION">
207		<title><constant>DTV_MODULATION</constant></title>
208	<para>Specifies the frontend modulation type for cable and satellite types. The modulation can be one of the types bellow:</para>
209	<programlisting>
210	 typedef enum fe_modulation {
211		QPSK,
212		QAM_16,
213		QAM_32,
214		QAM_64,
215		QAM_128,
216		QAM_256,
217		QAM_AUTO,
218		VSB_8,
219		VSB_16,
220		PSK_8,
221		APSK_16,
222		APSK_32,
223		DQPSK,
224		QAM_4_NR,
225	 } fe_modulation_t;
226	</programlisting>
227		</section>
228		<section id="DTV-BANDWIDTH-HZ">
229			<title><constant>DTV_BANDWIDTH_HZ</constant></title>
230	
231			<para>Bandwidth for the channel, in HZ.</para>
232	
233			<para>Possible values:
234				<constant>1712000</constant>,
235				<constant>5000000</constant>,
236				<constant>6000000</constant>,
237				<constant>7000000</constant>,
238				<constant>8000000</constant>,
239				<constant>10000000</constant>.
240			</para>
241	
242			<para>Notes:</para>
243	
244			<para>1) For ISDB-T it should be always 6000000Hz (6MHz)</para>
245			<para>2) For ISDB-Tsb it can vary depending on the number of connected segments</para>
246			<para>3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth
247				 for DVB-C depends on the symbol rate</para>
248			<para>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from
249				other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
250				DTV_ISDBT_SB_SEGMENT_COUNT).</para>
251			<para>5) DVB-T supports 6, 7 and 8MHz.</para>
252			<para>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</para>
253		</section>
254		<section id="DTV-INVERSION">
255		<title><constant>DTV_INVERSION</constant></title>
256		<para>The Inversion field can take one of these values:
257		</para>
258		<programlisting>
259		typedef enum fe_spectral_inversion {
260			INVERSION_OFF,
261			INVERSION_ON,
262			INVERSION_AUTO
263		} fe_spectral_inversion_t;
264		</programlisting>
265		<para>It indicates if spectral inversion should be presumed or not. In the automatic setting
266		(<constant>INVERSION_AUTO</constant>) the hardware will try to figure out the correct setting by
267		itself.
268		</para>
269		</section>
270		<section id="DTV-DISEQC-MASTER">
271		<title><constant>DTV_DISEQC_MASTER</constant></title>
272		<para>Currently not implemented.</para>
273		</section>
274		<section id="DTV-SYMBOL-RATE">
275		<title><constant>DTV_SYMBOL_RATE</constant></title>
276		<para>Digital TV symbol rate, in bauds (symbols/second). Used on cable standards.</para>
277		</section>
278		<section id="DTV-INNER-FEC">
279		<title><constant>DTV_INNER_FEC</constant></title>
280		<para>Used cable/satellite transmissions. The acceptable values are:
281		</para>
282		<programlisting>
283	typedef enum fe_code_rate {
284		FEC_NONE = 0,
285		FEC_1_2,
286		FEC_2_3,
287		FEC_3_4,
288		FEC_4_5,
289		FEC_5_6,
290		FEC_6_7,
291		FEC_7_8,
292		FEC_8_9,
293		FEC_AUTO,
294		FEC_3_5,
295		FEC_9_10,
296		FEC_2_5,
297	} fe_code_rate_t;
298		</programlisting>
299		<para>which correspond to error correction rates of 1/2, 2/3, etc.,
300		no error correction or auto detection.</para>
301		</section>
302		<section id="DTV-VOLTAGE">
303		<title><constant>DTV_VOLTAGE</constant></title>
304		<para>The voltage is usually used with non-DiSEqC capable LNBs to switch
305		the polarzation (horizontal/vertical). When using DiSEqC epuipment this
306		voltage has to be switched consistently to the DiSEqC commands as
307		described in the DiSEqC spec.</para>
308		<programlisting>
309			typedef enum fe_sec_voltage {
310			SEC_VOLTAGE_13,
311			SEC_VOLTAGE_18
312			} fe_sec_voltage_t;
313		</programlisting>
314		</section>
315		<section id="DTV-TONE">
316		<title><constant>DTV_TONE</constant></title>
317		<para>Currently not used.</para>
318		</section>
319		<section id="DTV-PILOT">
320		<title><constant>DTV_PILOT</constant></title>
321		<para>Sets DVB-S2 pilot</para>
322		<section id="fe-pilot-t">
323			<title>fe_pilot type</title>
324			<programlisting>
325	typedef enum fe_pilot {
326		PILOT_ON,
327		PILOT_OFF,
328		PILOT_AUTO,
329	} fe_pilot_t;
330			</programlisting>
331			</section>
332		</section>
333		<section id="DTV-ROLLOFF">
334		<title><constant>DTV_ROLLOFF</constant></title>
335			<para>Sets DVB-S2 rolloff</para>
336	
337		<section id="fe-rolloff-t">
338			<title>fe_rolloff type</title>
339			<programlisting>
340	typedef enum fe_rolloff {
341		ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
342		ROLLOFF_20,
343		ROLLOFF_25,
344		ROLLOFF_AUTO,
345	} fe_rolloff_t;
346			</programlisting>
347			</section>
348		</section>
349		<section id="DTV-DISEQC-SLAVE-REPLY">
350		<title><constant>DTV_DISEQC_SLAVE_REPLY</constant></title>
351		<para>Currently not implemented.</para>
352		</section>
353		<section id="DTV-FE-CAPABILITY-COUNT">
354		<title><constant>DTV_FE_CAPABILITY_COUNT</constant></title>
355		<para>Currently not implemented.</para>
356		</section>
357		<section id="DTV-FE-CAPABILITY">
358		<title><constant>DTV_FE_CAPABILITY</constant></title>
359		<para>Currently not implemented.</para>
360		</section>
361		<section id="DTV-DELIVERY-SYSTEM">
362			<title><constant>DTV_DELIVERY_SYSTEM</constant></title>
363			<para>Specifies the type of Delivery system</para>
364			<section id="fe-delivery-system-t">
365			<title>fe_delivery_system type</title>
366			<para>Possible values: </para>
367	<programlisting>
368	
369	typedef enum fe_delivery_system {
370		SYS_UNDEFINED,
371		SYS_DVBC_ANNEX_A,
372		SYS_DVBC_ANNEX_B,
373		SYS_DVBT,
374		SYS_DSS,
375		SYS_DVBS,
376		SYS_DVBS2,
377		SYS_DVBH,
378		SYS_ISDBT,
379		SYS_ISDBS,
380		SYS_ISDBC,
381		SYS_ATSC,
382		SYS_ATSCMH,
383		SYS_DTMB,
384		SYS_CMMB,
385		SYS_DAB,
386		SYS_DVBT2,
387		SYS_TURBO,
388		SYS_DVBC_ANNEX_C,
389	} fe_delivery_system_t;
390	</programlisting>
391			</section>
392		</section>
393		<section id="DTV-ISDBT-PARTIAL-RECEPTION">
394			<title><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></title>
395	
396			<para>If <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '0' this bit-field represents whether
397				the channel is in partial reception mode or not.</para>
398	
399			<para>If '1' <constant>DTV_ISDBT_LAYERA_*</constant> values are assigned to the center segment and
400				<constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant> has to be '1'.</para>
401	
402			<para>If in addition <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'
403				<constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> represents whether this ISDB-Tsb channel
404				is consisting of one segment and layer or three segments and two layers.</para>
405	
406			<para>Possible values: 0, 1, -1 (AUTO)</para>
407		</section>
408		<section id="DTV-ISDBT-SOUND-BROADCASTING">
409			<title><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></title>
410	
411			<para>This field represents whether the other DTV_ISDBT_*-parameters are
412				referring to an ISDB-T and an ISDB-Tsb channel. (See also
413				<constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>).</para>
414	
415			<para>Possible values: 0, 1, -1 (AUTO)</para>
416		</section>
417		<section id="DTV-ISDBT-SB-SUBCHANNEL-ID">
418			<title><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></title>
419	
420			<para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para>
421	
422			<para>(Note of the author: This might not be the correct description of the
423				<constant>SUBCHANNEL-ID</constant> in all details, but it is my understanding of the technical
424				background needed to program a device)</para>
425	
426			<para>An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a
427				set of connected ISDB-Tsb channels. In this set of channels every
428				channel can be received independently. The number of connected
429				ISDB-Tsb segment can vary, e.g. depending on the frequency spectrum
430				bandwidth available.</para>
431	
432			<para>Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The
433				broadcaster has several possibilities to put those channels in the
434				air: Assuming a normal 13-segment ISDB-T spectrum he can align the 8
435				segments from position 1-8 to 5-13 or anything in between.</para>
436	
437			<para>The underlying layer of segments are subchannels: each segment is
438				consisting of several subchannels with a predefined IDs. A sub-channel
439				is used to help the demodulator to synchronize on the channel.</para>
440	
441			<para>An ISDB-T channel is always centered over all sub-channels. As for
442				the example above, in ISDB-Tsb it is no longer as simple as that.</para>
443	
444			<para><constant>The DTV_ISDBT_SB_SUBCHANNEL_ID</constant> parameter is used to give the
445				sub-channel ID of the segment to be demodulated.</para>
446	
447			<para>Possible values: 0 .. 41, -1 (AUTO)</para>
448		</section>
449		<section id="DTV-ISDBT-SB-SEGMENT-IDX">
450			<title><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></title>
451			<para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para>
452			<para><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant> gives the index of the segment to be
453				demodulated for an ISDB-Tsb channel where several of them are
454				transmitted in the connected manner.</para>
455			<para>Possible values: 0 .. <constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> - 1</para>
456			<para>Note: This value cannot be determined by an automatic channel search.</para>
457		</section>
458		<section id="DTV-ISDBT-SB-SEGMENT-COUNT">
459			<title><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></title>
460			<para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para>
461			<para><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> gives the total count of connected ISDB-Tsb
462				channels.</para>
463			<para>Possible values: 1 .. 13</para>
464			<para>Note: This value cannot be determined by an automatic channel search.</para>
465		</section>
466		<section id="isdb-hierq-layers">
467			<title><constant>DTV-ISDBT-LAYER*</constant> parameters</title>
468			<para>ISDB-T channels can be coded hierarchically. As opposed to DVB-T in
469				ISDB-T hierarchical layers can be decoded simultaneously. For that
470				reason a ISDB-T demodulator has 3 Viterbi and 3 Reed-Solomon decoders.</para>
471			<para>ISDB-T has 3 hierarchical layers which each can use a part of the
472				available segments. The total number of segments over all layers has
473				to 13 in ISDB-T.</para>
474			<para>There are 3 parameter sets, for Layers A, B and C.</para>
475			<section id="DTV-ISDBT-LAYER-ENABLED">
476				<title><constant>DTV_ISDBT_LAYER_ENABLED</constant></title>
477				<para>Hierarchical reception in ISDB-T is achieved by enabling or disabling
478					layers in the decoding process. Setting all bits of
479					<constant>DTV_ISDBT_LAYER_ENABLED</constant> to '1' forces all layers (if applicable) to be
480					demodulated. This is the default.</para>
481				<para>If the channel is in the partial reception mode
482					(<constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> = 1) the central segment can be decoded
483					independently of the other 12 segments. In that mode layer A has to
484					have a <constant>SEGMENT_COUNT</constant> of 1.</para>
485				<para>In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb
486					according to <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>. <constant>SEGMENT_COUNT</constant> must be filled
487					accordingly.</para>
488				<para>Possible values: 0x1, 0x2, 0x4 (|-able)</para>
489				<para><constant>DTV_ISDBT_LAYER_ENABLED[0:0]</constant> - layer A</para>
490				<para><constant>DTV_ISDBT_LAYER_ENABLED[1:1]</constant> - layer B</para>
491				<para><constant>DTV_ISDBT_LAYER_ENABLED[2:2]</constant> - layer C</para>
492				<para><constant>DTV_ISDBT_LAYER_ENABLED[31:3]</constant> unused</para>
493			</section>
494			<section id="DTV-ISDBT-LAYER-FEC">
495				<title><constant>DTV_ISDBT_LAYER*_FEC</constant></title>
496				<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>
497			</section>
498			<section id="DTV-ISDBT-LAYER-MODULATION">
499				<title><constant>DTV_ISDBT_LAYER*_MODULATION</constant></title>
500				<para>Possible values: <constant>QAM_AUTO</constant>, QP<constant>SK, QAM_16</constant>, <constant>QAM_64</constant>, <constant>DQPSK</constant></para>
501				<para>Note: If layer C is <constant>DQPSK</constant> layer B has to be <constant>DQPSK</constant>. If layer B is <constant>DQPSK</constant>
502					and <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>=0 layer has to be <constant>DQPSK</constant>.</para>
503			</section>
504			<section id="DTV-ISDBT-LAYER-SEGMENT-COUNT">
505				<title><constant>DTV_ISDBT_LAYER*_SEGMENT_COUNT</constant></title>
506				<para>Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)</para>
507				<para>Note: Truth table for <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> and
508					<constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> and <constant>LAYER</constant>*_SEGMENT_COUNT</para>
509				<informaltable id="isdbt-layer_seg-cnt-table">
510					<tgroup cols="6">
511						<tbody>
512							<row>
513								<entry>PR</entry>
514								<entry>SB</entry>
515								<entry>Layer A width</entry>
516								<entry>Layer B width</entry>
517								<entry>Layer C width</entry>
518								<entry>total width</entry>
519							</row>
520							<row>
521								<entry>0</entry>
522								<entry>0</entry>
523								<entry>1 .. 13</entry>
524								<entry>1 .. 13</entry>
525								<entry>1 .. 13</entry>
526								<entry>13</entry>
527							</row>
528							<row>
529								<entry>1</entry>
530								<entry>0</entry>
531								<entry>1</entry>
532								<entry>1 .. 13</entry>
533								<entry>1 .. 13</entry>
534								<entry>13</entry>
535							</row>
536							<row>
537								<entry>0</entry>
538								<entry>1</entry>
539								<entry>1</entry>
540								<entry>0</entry>
541								<entry>0</entry>
542								<entry>1</entry>
543							</row>
544							<row>
545								<entry>1</entry>
546								<entry>1</entry>
547								<entry>1</entry>
548								<entry>2</entry>
549								<entry>0</entry>
550								<entry>13</entry>
551							</row>
552						</tbody>
553					</tgroup>
554				</informaltable>
555			</section>
556			<section id="DTV-ISDBT-LAYER-TIME-INTERLEAVING">
557				<title><constant>DTV_ISDBT_LAYER*_TIME_INTERLEAVING</constant></title>
558				<para>Possible values: 0, 1, 2, 3, -1 (AUTO)</para>
559				<para>Note: The real inter-leaver depth-names depend on the mode (fft-size); the values
560					here are referring to what can be found in the TMCC-structure -
561					independent of the mode.</para>
562			</section>
563			<section id="DTV-ATSCMH-FIC-VER">
564				<title><constant>DTV_ATSCMH_FIC_VER</constant></title>
565				<para>Version number of the FIC (Fast Information Channel) signaling data.</para>
566				<para>FIC is used for relaying information to allow rapid service acquisition by the receiver.</para>
567				<para>Possible values: 0, 1, 2, 3, ..., 30, 31</para>
568			</section>
569			<section id="DTV-ATSCMH-PARADE-ID">
570				<title><constant>DTV_ATSCMH_PARADE_ID</constant></title>
571				<para>Parade identification number</para>
572				<para>A parade is a collection of up to eight MH groups, conveying one or two ensembles.</para>
573				<para>Possible values: 0, 1, 2, 3, ..., 126, 127</para>
574			</section>
575			<section id="DTV-ATSCMH-NOG">
576				<title><constant>DTV_ATSCMH_NOG</constant></title>
577				<para>Number of MH groups per MH subframe for a designated parade.</para>
578				<para>Possible values: 1, 2, 3, 4, 5, 6, 7, 8</para>
579			</section>
580			<section id="DTV-ATSCMH-TNOG">
581				<title><constant>DTV_ATSCMH_TNOG</constant></title>
582				<para>Total number of MH groups including all MH groups belonging to all MH parades in one MH subframe.</para>
583				<para>Possible values: 0, 1, 2, 3, ..., 30, 31</para>
584			</section>
585			<section id="DTV-ATSCMH-SGN">
586				<title><constant>DTV_ATSCMH_SGN</constant></title>
587				<para>Start group number.</para>
588				<para>Possible values: 0, 1, 2, 3, ..., 14, 15</para>
589			</section>
590			<section id="DTV-ATSCMH-PRC">
591				<title><constant>DTV_ATSCMH_PRC</constant></title>
592				<para>Parade repetition cycle.</para>
593				<para>Possible values: 1, 2, 3, 4, 5, 6, 7, 8</para>
594			</section>
595			<section id="DTV-ATSCMH-RS-FRAME-MODE">
596				<title><constant>DTV_ATSCMH_RS_FRAME_MODE</constant></title>
597				<para>RS frame mode.</para>
598				<para>Possible values are:</para>
599			  <para id="atscmh-rs-frame-mode">
600	<programlisting>
601	typedef enum atscmh_rs_frame_mode {
602		ATSCMH_RSFRAME_PRI_ONLY  = 0,
603		ATSCMH_RSFRAME_PRI_SEC   = 1,
604	} atscmh_rs_frame_mode_t;
605	</programlisting>
606			  </para>
607			</section>
608			<section id="DTV-ATSCMH-RS-FRAME-ENSEMBLE">
609				<title><constant>DTV_ATSCMH_RS_FRAME_ENSEMBLE</constant></title>
610				<para>RS frame ensemble.</para>
611				<para>Possible values are:</para>
612			  <para id="atscmh-rs-frame-ensemble">
613	<programlisting>
614	typedef enum atscmh_rs_frame_ensemble {
615		ATSCMH_RSFRAME_ENS_PRI   = 0,
616		ATSCMH_RSFRAME_ENS_SEC   = 1,
617	} atscmh_rs_frame_ensemble_t;
618	</programlisting>
619			  </para>
620			</section>
621			<section id="DTV-ATSCMH-RS-CODE-MODE-PRI">
622				<title><constant>DTV_ATSCMH_RS_CODE_MODE_PRI</constant></title>
623				<para>RS code mode (primary).</para>
624				<para>Possible values are:</para>
625			  <para id="atscmh-rs-code-mode">
626	<programlisting>
627	typedef enum atscmh_rs_code_mode {
628		ATSCMH_RSCODE_211_187    = 0,
629		ATSCMH_RSCODE_223_187    = 1,
630		ATSCMH_RSCODE_235_187    = 2,
631	} atscmh_rs_code_mode_t;
632	</programlisting>
633			  </para>
634			</section>
635			<section id="DTV-ATSCMH-RS-CODE-MODE-SEC">
636				<title><constant>DTV_ATSCMH_RS_CODE_MODE_SEC</constant></title>
637				<para>RS code mode (secondary).</para>
638				<para>Possible values are:</para>
639	<programlisting>
640	typedef enum atscmh_rs_code_mode {
641		ATSCMH_RSCODE_211_187    = 0,
642		ATSCMH_RSCODE_223_187    = 1,
643		ATSCMH_RSCODE_235_187    = 2,
644	} atscmh_rs_code_mode_t;
645	</programlisting>
646			</section>
647			<section id="DTV-ATSCMH-SCCC-BLOCK-MODE">
648				<title><constant>DTV_ATSCMH_SCCC_BLOCK_MODE</constant></title>
649				<para>Series Concatenated Convolutional Code Block Mode.</para>
650				<para>Possible values are:</para>
651			  <para id="atscmh-sccc-block-mode">
652	<programlisting>
653	typedef enum atscmh_sccc_block_mode {
654		ATSCMH_SCCC_BLK_SEP      = 0,
655		ATSCMH_SCCC_BLK_COMB     = 1,
656	} atscmh_sccc_block_mode_t;
657	</programlisting>
658			  </para>
659			</section>
660			<section id="DTV-ATSCMH-SCCC-CODE-MODE-A">
661				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_A</constant></title>
662				<para>Series Concatenated Convolutional Code Rate.</para>
663				<para>Possible values are:</para>
664			  <para id="atscmh-sccc-code-mode">
665	<programlisting>
666	typedef enum atscmh_sccc_code_mode {
667		ATSCMH_SCCC_CODE_HLF     = 0,
668		ATSCMH_SCCC_CODE_QTR     = 1,
669	} atscmh_sccc_code_mode_t;
670	</programlisting>
671			  </para>
672			</section>
673			<section id="DTV-ATSCMH-SCCC-CODE-MODE-B">
674				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_B</constant></title>
675				<para>Series Concatenated Convolutional Code Rate.</para>
676				<para>Possible values are:</para>
677	<programlisting>
678	typedef enum atscmh_sccc_code_mode {
679		ATSCMH_SCCC_CODE_HLF     = 0,
680		ATSCMH_SCCC_CODE_QTR     = 1,
681	} atscmh_sccc_code_mode_t;
682	</programlisting>
683			</section>
684			<section id="DTV-ATSCMH-SCCC-CODE-MODE-C">
685				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_C</constant></title>
686				<para>Series Concatenated Convolutional Code Rate.</para>
687				<para>Possible values are:</para>
688	<programlisting>
689	typedef enum atscmh_sccc_code_mode {
690		ATSCMH_SCCC_CODE_HLF     = 0,
691		ATSCMH_SCCC_CODE_QTR     = 1,
692	} atscmh_sccc_code_mode_t;
693	</programlisting>
694			</section>
695			<section id="DTV-ATSCMH-SCCC-CODE-MODE-D">
696				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_D</constant></title>
697				<para>Series Concatenated Convolutional Code Rate.</para>
698				<para>Possible values are:</para>
699	<programlisting>
700	typedef enum atscmh_sccc_code_mode {
701		ATSCMH_SCCC_CODE_HLF     = 0,
702		ATSCMH_SCCC_CODE_QTR     = 1,
703	} atscmh_sccc_code_mode_t;
704	</programlisting>
705			</section>
706		</section>
707		<section id="DTV-API-VERSION">
708		<title><constant>DTV_API_VERSION</constant></title>
709		<para>Returns the major/minor version of the DVB API</para>
710		</section>
711		<section id="DTV-CODE-RATE-HP">
712		<title><constant>DTV_CODE_RATE_HP</constant></title>
713		<para>Used on terrestrial transmissions. The acceptable values are:
714		</para>
715		<programlisting>
716	typedef enum fe_code_rate {
717		FEC_NONE = 0,
718		FEC_1_2,
719		FEC_2_3,
720		FEC_3_4,
721		FEC_4_5,
722		FEC_5_6,
723		FEC_6_7,
724		FEC_7_8,
725		FEC_8_9,
726		FEC_AUTO,
727		FEC_3_5,
728		FEC_9_10,
729	} fe_code_rate_t;
730		</programlisting>
731		</section>
732		<section id="DTV-CODE-RATE-LP">
733		<title><constant>DTV_CODE_RATE_LP</constant></title>
734		<para>Used on terrestrial transmissions. The acceptable values are:
735		</para>
736		<programlisting>
737	typedef enum fe_code_rate {
738		FEC_NONE = 0,
739		FEC_1_2,
740		FEC_2_3,
741		FEC_3_4,
742		FEC_4_5,
743		FEC_5_6,
744		FEC_6_7,
745		FEC_7_8,
746		FEC_8_9,
747		FEC_AUTO,
748		FEC_3_5,
749		FEC_9_10,
750	} fe_code_rate_t;
751		</programlisting>
752		</section>
753		<section id="DTV-GUARD-INTERVAL">
754			<title><constant>DTV_GUARD_INTERVAL</constant></title>
755	
756			<para>Possible values are:</para>
757	<programlisting>
758	typedef enum fe_guard_interval {
759		GUARD_INTERVAL_1_32,
760		GUARD_INTERVAL_1_16,
761		GUARD_INTERVAL_1_8,
762		GUARD_INTERVAL_1_4,
763		GUARD_INTERVAL_AUTO,
764		GUARD_INTERVAL_1_128,
765		GUARD_INTERVAL_19_128,
766		GUARD_INTERVAL_19_256,
767		GUARD_INTERVAL_PN420,
768		GUARD_INTERVAL_PN595,
769		GUARD_INTERVAL_PN945,
770	} fe_guard_interval_t;
771	</programlisting>
772	
773			<para>Notes:</para>
774			<para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
775				try to find the correct guard interval (if capable) and will use TMCC to fill
776				in the missing parameters.</para>
777			<para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para>
778			<para>3) DTMB specifies PN420, PN595 and PN945.</para>
779		</section>
780		<section id="DTV-TRANSMISSION-MODE">
781			<title><constant>DTV_TRANSMISSION_MODE</constant></title>
782	
783			<para>Specifies the number of carriers used by the standard</para>
784	
785			<para>Possible values are:</para>
786	<programlisting>
787	typedef enum fe_transmit_mode {
788		TRANSMISSION_MODE_2K,
789		TRANSMISSION_MODE_8K,
790		TRANSMISSION_MODE_AUTO,
791		TRANSMISSION_MODE_4K,
792		TRANSMISSION_MODE_1K,
793		TRANSMISSION_MODE_16K,
794		TRANSMISSION_MODE_32K,
795		TRANSMISSION_MODE_C1,
796		TRANSMISSION_MODE_C3780,
797	} fe_transmit_mode_t;
798	</programlisting>
799			<para>Notes:</para>
800			<para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
801				'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para>
802	
803			<para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the
804				hardware will try to find the correct FFT-size (if capable) and will
805				use TMCC to fill in the missing parameters.</para>
806			<para>3) DVB-T specifies 2K and 8K as valid sizes.</para>
807			<para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para>
808			<para>5) DTMB specifies C1 and C3780.</para>
809		</section>
810		<section id="DTV-HIERARCHY">
811		<title><constant>DTV_HIERARCHY</constant></title>
812		<para>Frontend hierarchy</para>
813		<programlisting>
814	typedef enum fe_hierarchy {
815		 HIERARCHY_NONE,
816		 HIERARCHY_1,
817		 HIERARCHY_2,
818		 HIERARCHY_4,
819		 HIERARCHY_AUTO
820	 } fe_hierarchy_t;
821		</programlisting>
822		</section>
823		<section id="DTV-STREAM-ID">
824		<title><constant>DTV_STREAM_ID</constant></title>
825		<para>DVB-S2, DVB-T2 and ISDB-S support the transmission of several
826		      streams on a single transport stream.
827		      This property enables the DVB driver to handle substream filtering,
828		      when supported by the hardware.
829		      By default, substream filtering is disabled.
830		</para><para>
831		      For DVB-S2 and DVB-T2, the valid substream id range is from 0 to 255.
832		</para><para>
833		      For ISDB, the valid substream id range is from 1 to 65535.
834		</para><para>
835		      To disable it, you should use the special macro NO_STREAM_ID_FILTER.
836		</para><para>
837		      Note: any value outside the id range also disables filtering.
838		</para>
839		</section>
840		<section id="DTV-DVBT2-PLP-ID-LEGACY">
841			<title><constant>DTV_DVBT2_PLP_ID_LEGACY</constant></title>
842			<para>Obsolete, replaced with DTV_STREAM_ID.</para>
843		</section>
844		<section id="DTV-ENUM-DELSYS">
845			<title><constant>DTV_ENUM_DELSYS</constant></title>
846			<para>A Multi standard frontend needs to advertise the delivery systems provided.
847				Applications need to enumerate the provided delivery systems, before using
848				any other operation with the frontend. Prior to it's introduction,
849				FE_GET_INFO was used to determine a frontend type. A frontend which
850				provides more than a single delivery system, FE_GET_INFO doesn't help much.
851				Applications which intends to use a multistandard frontend must enumerate
852				the delivery systems associated with it, rather than trying to use
853				FE_GET_INFO. In the case of a legacy frontend, the result is just the same
854				as with FE_GET_INFO, but in a more structured format </para>
855		</section>
856		<section id="DTV-INTERLEAVING">
857		<title><constant>DTV_INTERLEAVING</constant></title>
858		<para id="fe-interleaving">Interleaving mode</para>
859		<programlisting>
860	enum fe_interleaving {
861		INTERLEAVING_NONE,
862		INTERLEAVING_AUTO,
863		INTERLEAVING_240,
864		INTERLEAVING_720,
865	};
866		</programlisting>
867		</section>
868		<section id="DTV-LNA">
869		<title><constant>DTV_LNA</constant></title>
870		<para>Low-noise amplifier.</para>
871		<para>Hardware might offer controllable LNA which can be set manually
872			using that parameter. Usually LNA could be found only from
873			terrestrial devices if at all.</para>
874		<para>Possible values: 0, 1, LNA_AUTO</para>
875		<para>0, LNA off</para>
876		<para>1, LNA on</para>
877		<para>use the special macro LNA_AUTO to set LNA auto</para>
878		</section>
879	</section>
880	
881		<section id="frontend-stat-properties">
882		<title>Frontend statistics indicators</title>
883		<para>The values are returned via <constant>dtv_property.stat</constant>.
884		      If the property is supported, <constant>dtv_property.stat.len</constant> is bigger than zero.</para>
885		<para>For most delivery systems, <constant>dtv_property.stat.len</constant>
886		      will be 1 if the stats is supported, and the properties will
887		      return a single value for each parameter.</para>
888		<para>It should be noticed, however, that new OFDM delivery systems
889		      like ISDB can use different modulation types for each group of
890		      carriers. On such standards, up to 3 groups of statistics can be
891		      provided, and <constant>dtv_property.stat.len</constant> is updated
892		      to reflect the "global" metrics, plus one metric per each carrier
893		      group (called "layer" on ISDB).</para>
894		<para>So, in order to be consistent with other delivery systems, the first
895		      value at <link linkend="dtv-stats"><constant>dtv_property.stat.dtv_stats</constant></link>
896		      array refers to the global metric. The other elements of the array
897		      represent each layer, starting from layer A(index 1),
898		      layer B (index 2) and so on.</para>
899		<para>The number of filled elements are stored at <constant>dtv_property.stat.len</constant>.</para>
900		<para>Each element of the <constant>dtv_property.stat.dtv_stats</constant> array consists on two elements:</para>
901		<itemizedlist mark='opencircle'>
902			<listitem><para><constant>svalue</constant> or <constant>uvalue</constant>, where
903				<constant>svalue</constant> is for signed values of the measure (dB measures)
904				and <constant>uvalue</constant> is for unsigned values (counters, relative scale)</para></listitem>
905			<listitem><para><constant>scale</constant> - Scale for the value. It can be:</para>
906				<itemizedlist mark='bullet' id="fecap-scale-params">
907					<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - The parameter is supported by the frontend, but it was not possible to collect it (could be a transitory or permanent condition)</para></listitem>
908					<listitem><para><constant>FE_SCALE_DECIBEL</constant> - parameter is a signed value, measured in 1/1000 dB</para></listitem>
909					<listitem><para><constant>FE_SCALE_RELATIVE</constant> - parameter is a unsigned value, where 0 means 0% and 65535 means 100%.</para></listitem>
910					<listitem><para><constant>FE_SCALE_COUNTER</constant> - parameter is a unsigned value that counts the occurrence of an event, like bit error, block error, or lapsed time.</para></listitem>
911				</itemizedlist>
912			</listitem>
913		</itemizedlist>
914		<section id="DTV-STAT-SIGNAL-STRENGTH">
915			<title><constant>DTV_STAT_SIGNAL_STRENGTH</constant></title>
916			<para>Indicates the signal strength level at the analog part of the tuner or of the demod.</para>
917			<para>Possible scales for this metric are:</para>
918			<itemizedlist mark='bullet'>
919				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
920				<listitem><para><constant>FE_SCALE_DECIBEL</constant> - signal strength is in 0.0001 dBm units, power measured in miliwatts. This value is generally negative.</para></listitem>
921				<listitem><para><constant>FE_SCALE_RELATIVE</constant> - The frontend provides a 0% to 100% measurement for power (actually, 0 to 65535).</para></listitem>
922			</itemizedlist>
923		</section>
924		<section id="DTV-STAT-CNR">
925			<title><constant>DTV_STAT_CNR</constant></title>
926			<para>Indicates the Signal to Noise ratio for the main carrier.</para>
927			<para>Possible scales for this metric are:</para>
928			<itemizedlist mark='bullet'>
929				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
930				<listitem><para><constant>FE_SCALE_DECIBEL</constant> - Signal/Noise ratio is in 0.0001 dB units.</para></listitem>
931				<listitem><para><constant>FE_SCALE_RELATIVE</constant> - The frontend provides a 0% to 100% measurement for Signal/Noise (actually, 0 to 65535).</para></listitem>
932			</itemizedlist>
933		</section>
934		<section id="DTV-STAT-PRE-ERROR-BIT-COUNT">
935			<title><constant>DTV_STAT_PRE_ERROR_BIT_COUNT</constant></title>
936			<para>Measures the number of bit errors before the forward error correction (FEC) on the inner coding block (before Viterbi, LDPC or other inner code).</para>
937			<para>This measure is taken during the same interval as <constant>DTV_STAT_PRE_TOTAL_BIT_COUNT</constant>.</para>
938			<para>In order to get the BER (Bit Error Rate) measurement, it should be divided by
939			<link linkend="DTV-STAT-PRE-TOTAL-BIT-COUNT"><constant>DTV_STAT_PRE_TOTAL_BIT_COUNT</constant></link>.</para>
940			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
941			      The frontend may reset it when a channel/transponder is tuned.</para>
942			<para>Possible scales for this metric are:</para>
943			<itemizedlist mark='bullet'>
944				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
945				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of error bits counted before the inner coding.</para></listitem>
946			</itemizedlist>
947		</section>
948		<section id="DTV-STAT-PRE-TOTAL-BIT-COUNT">
949			<title><constant>DTV_STAT_PRE_TOTAL_BIT_COUNT</constant></title>
950			<para>Measures the amount of bits received before the inner code block, during the same period as
951			<link linkend="DTV-STAT-PRE-ERROR-BIT-COUNT"><constant>DTV_STAT_PRE_ERROR_BIT_COUNT</constant></link> measurement was taken.</para>
952			<para>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream,
953			      as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</para>
954			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
955			      The frontend may reset it when a channel/transponder is tuned.</para>
956			<para>Possible scales for this metric are:</para>
957			<itemizedlist mark='bullet'>
958				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
959				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of bits counted while measuring
960					 <link linkend="DTV-STAT-PRE-ERROR-BIT-COUNT"><constant>DTV_STAT_PRE_ERROR_BIT_COUNT</constant></link>.</para></listitem>
961			</itemizedlist>
962		</section>
963		<section id="DTV-STAT-POST-ERROR-BIT-COUNT">
964			<title><constant>DTV_STAT_POST_ERROR_BIT_COUNT</constant></title>
965			<para>Measures the number of bit errors after the forward error correction (FEC) done by inner code block (after Viterbi, LDPC or other inner code).</para>
966			<para>This measure is taken during the same interval as <constant>DTV_STAT_POST_TOTAL_BIT_COUNT</constant>.</para>
967			<para>In order to get the BER (Bit Error Rate) measurement, it should be divided by
968			<link linkend="DTV-STAT-POST-TOTAL-BIT-COUNT"><constant>DTV_STAT_POST_TOTAL_BIT_COUNT</constant></link>.</para>
969			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
970			      The frontend may reset it when a channel/transponder is tuned.</para>
971			<para>Possible scales for this metric are:</para>
972			<itemizedlist mark='bullet'>
973				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
974				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of error bits counted after the inner coding.</para></listitem>
975			</itemizedlist>
976		</section>
977		<section id="DTV-STAT-POST-TOTAL-BIT-COUNT">
978			<title><constant>DTV_STAT_POST_TOTAL_BIT_COUNT</constant></title>
979			<para>Measures the amount of bits received after the inner coding, during the same period as
980			<link linkend="DTV-STAT-POST-ERROR-BIT-COUNT"><constant>DTV_STAT_POST_ERROR_BIT_COUNT</constant></link> measurement was taken.</para>
981			<para>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream,
982			      as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</para>
983			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
984			      The frontend may reset it when a channel/transponder is tuned.</para>
985			<para>Possible scales for this metric are:</para>
986			<itemizedlist mark='bullet'>
987				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
988				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of bits counted while measuring
989					 <link linkend="DTV-STAT-POST-ERROR-BIT-COUNT"><constant>DTV_STAT_POST_ERROR_BIT_COUNT</constant></link>.</para></listitem>
990			</itemizedlist>
991		</section>
992		<section id="DTV-STAT-ERROR-BLOCK-COUNT">
993			<title><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></title>
994			<para>Measures the number of block errors after the outer forward error correction coding (after Reed-Solomon or other outer code).</para>
995			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
996			      The frontend may reset it when a channel/transponder is tuned.</para>
997			<para>Possible scales for this metric are:</para>
998			<itemizedlist mark='bullet'>
999				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
1000				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of error blocks counted after the outer coding.</para></listitem>
1001			</itemizedlist>
1002		</section>
1003		<section id="DTV-STAT-TOTAL-BLOCK-COUNT">
1004			<title><constant>DTV-STAT_TOTAL_BLOCK_COUNT</constant></title>
1005			<para>Measures the total number of blocks received during the same period as
1006			<link linkend="DTV-STAT-ERROR-BLOCK-COUNT"><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></link> measurement was taken.</para>
1007			<para>It can be used to calculate the PER indicator, by dividing
1008			<link linkend="DTV-STAT-ERROR-BLOCK-COUNT"><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></link>
1009			by <link linkend="DTV-STAT-TOTAL-BLOCK-COUNT"><constant>DTV-STAT-TOTAL-BLOCK-COUNT</constant></link>.</para>
1010			<para>Possible scales for this metric are:</para>
1011			<itemizedlist mark='bullet'>
1012				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
1013				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of blocks counted while measuring
1014				<link linkend="DTV-STAT-ERROR-BLOCK-COUNT"><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></link>.</para></listitem>
1015			</itemizedlist>
1016		</section>
1017		</section>
1018	
1019		<section id="frontend-property-terrestrial-systems">
1020		<title>Properties used on terrestrial delivery systems</title>
1021			<section id="dvbt-params">
1022				<title>DVB-T delivery system</title>
1023				<para>The following parameters are valid for DVB-T:</para>
1024				<itemizedlist mark='opencircle'>
1025					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1026					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1027					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1028					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1029					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1030					<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1031					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1032					<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1033					<listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
1034					<listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
1035					<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1036					<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1037					<listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
1038					<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1039				</itemizedlist>
1040				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1041			</section>
1042			<section id="dvbt2-params">
1043				<title>DVB-T2 delivery system</title>
1044				<para>DVB-T2 support is currently in the early stages
1045				of development, so expect that this section maygrow and become
1046				more detailed with time.</para>
1047			<para>The following parameters are valid for DVB-T2:</para>
1048			<itemizedlist mark='opencircle'>
1049				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1050				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1051				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1052				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1053				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1054				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1055				<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1056				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1057				<listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
1058				<listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
1059				<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1060				<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1061				<listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
1062				<listitem><para><link linkend="DTV-STREAM-ID"><constant>DTV_STREAM_ID</constant></link></para></listitem>
1063				<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1064			</itemizedlist>
1065			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1066			</section>
1067			<section id="isdbt">
1068			<title>ISDB-T delivery system</title>
1069			<para>This ISDB-T/ISDB-Tsb API extension should reflect all information
1070				needed to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible
1071				that some very sophisticated devices won't need certain parameters to
1072				tune.</para>
1073			<para>The information given here should help application writers to know how
1074				to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API.</para>
1075			<para>The details given here about ISDB-T and ISDB-Tsb are just enough to
1076				basically show the dependencies between the needed parameter values,
1077				but surely some information is left out. For more detailed information
1078				see the following documents:</para>
1079			<para>ARIB STD-B31 - "Transmission System for Digital Terrestrial
1080				Television Broadcasting" and</para>
1081			<para>ARIB TR-B14 - "Operational Guidelines for Digital Terrestrial
1082				Television Broadcasting".</para>
1083			<para>In order to understand the ISDB specific parameters,
1084				one has to have some knowledge the channel structure in
1085				ISDB-T and ISDB-Tsb. I.e. it has to be known to
1086				the reader that an ISDB-T channel consists of 13 segments,
1087				that it can have up to 3 layer sharing those segments,
1088				and things like that.</para>
1089			<para>The following parameters are valid for ISDB-T:</para>
1090			<itemizedlist mark='opencircle'>
1091				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1092				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1093				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1094				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1095				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1096				<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1097				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1098				<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1099				<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1100				<listitem><para><link linkend="DTV-ISDBT-LAYER-ENABLED"><constant>DTV_ISDBT_LAYER_ENABLED</constant></link></para></listitem>
1101				<listitem><para><link linkend="DTV-ISDBT-PARTIAL-RECEPTION"><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></link></para></listitem>
1102				<listitem><para><link linkend="DTV-ISDBT-SOUND-BROADCASTING"><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></link></para></listitem>
1103				<listitem><para><link linkend="DTV-ISDBT-SB-SUBCHANNEL-ID"><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></link></para></listitem>
1104				<listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-IDX"><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></link></para></listitem>
1105				<listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-COUNT"><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></link></para></listitem>
1106				<listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERA_FEC</constant></link></para></listitem>
1107				<listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERA_MODULATION</constant></link></para></listitem>
1108				<listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant></link></para></listitem>
1109				<listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERA_TIME_INTERLEAVING</constant></link></para></listitem>
1110				<listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERB_FEC</constant></link></para></listitem>
1111				<listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERB_MODULATION</constant></link></para></listitem>
1112				<listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERB_SEGMENT_COUNT</constant></link></para></listitem>
1113				<listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERB_TIME_INTERLEAVING</constant></link></para></listitem>
1114				<listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERC_FEC</constant></link></para></listitem>
1115				<listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERC_MODULATION</constant></link></para></listitem>
1116				<listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERC_SEGMENT_COUNT</constant></link></para></listitem>
1117				<listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERC_TIME_INTERLEAVING</constant></link></para></listitem>
1118			</itemizedlist>
1119			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1120			</section>
1121			<section id="atsc-params">
1122				<title>ATSC delivery system</title>
1123				<para>The following parameters are valid for ATSC:</para>
1124				<itemizedlist mark='opencircle'>
1125					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1126					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1127					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1128					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1129					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1130					<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1131					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1132				</itemizedlist>
1133				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1134			</section>
1135			<section id="atscmh-params">
1136				<title>ATSC-MH delivery system</title>
1137				<para>The following parameters are valid for ATSC-MH:</para>
1138				<itemizedlist mark='opencircle'>
1139					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1140					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1141					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1142					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1143					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1144					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1145					<listitem><para><link linkend="DTV-ATSCMH-FIC-VER"><constant>DTV_ATSCMH_FIC_VER</constant></link></para></listitem>
1146					<listitem><para><link linkend="DTV-ATSCMH-PARADE-ID"><constant>DTV_ATSCMH_PARADE_ID</constant></link></para></listitem>
1147					<listitem><para><link linkend="DTV-ATSCMH-NOG"><constant>DTV_ATSCMH_NOG</constant></link></para></listitem>
1148					<listitem><para><link linkend="DTV-ATSCMH-TNOG"><constant>DTV_ATSCMH_TNOG</constant></link></para></listitem>
1149					<listitem><para><link linkend="DTV-ATSCMH-SGN"><constant>DTV_ATSCMH_SGN</constant></link></para></listitem>
1150					<listitem><para><link linkend="DTV-ATSCMH-PRC"><constant>DTV_ATSCMH_PRC</constant></link></para></listitem>
1151					<listitem><para><link linkend="DTV-ATSCMH-RS-FRAME-MODE"><constant>DTV_ATSCMH_RS_FRAME_MODE</constant></link></para></listitem>
1152					<listitem><para><link linkend="DTV-ATSCMH-RS-FRAME-ENSEMBLE"><constant>DTV_ATSCMH_RS_FRAME_ENSEMBLE</constant></link></para></listitem>
1153					<listitem><para><link linkend="DTV-ATSCMH-RS-CODE-MODE-PRI"><constant>DTV_ATSCMH_RS_CODE_MODE_PRI</constant></link></para></listitem>
1154					<listitem><para><link linkend="DTV-ATSCMH-RS-CODE-MODE-SEC"><constant>DTV_ATSCMH_RS_CODE_MODE_SEC</constant></link></para></listitem>
1155					<listitem><para><link linkend="DTV-ATSCMH-SCCC-BLOCK-MODE"><constant>DTV_ATSCMH_SCCC_BLOCK_MODE</constant></link></para></listitem>
1156					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-A"><constant>DTV_ATSCMH_SCCC_CODE_MODE_A</constant></link></para></listitem>
1157					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-B"><constant>DTV_ATSCMH_SCCC_CODE_MODE_B</constant></link></para></listitem>
1158					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-C"><constant>DTV_ATSCMH_SCCC_CODE_MODE_C</constant></link></para></listitem>
1159					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-D"><constant>DTV_ATSCMH_SCCC_CODE_MODE_D</constant></link></para></listitem>
1160				</itemizedlist>
1161				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1162			</section>
1163			<section id="dtmb-params">
1164				<title>DTMB delivery system</title>
1165				<para>The following parameters are valid for DTMB:</para>
1166				<itemizedlist mark='opencircle'>
1167					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1168					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1169					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1170					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1171					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1172					<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1173					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1174					<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1175					<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1176					<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1177					<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1178					<listitem><para><link linkend="DTV-INTERLEAVING"><constant>DTV_INTERLEAVING</constant></link></para></listitem>
1179					<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1180				</itemizedlist>
1181				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1182			</section>
1183		</section>
1184		<section id="frontend-property-cable-systems">
1185		<title>Properties used on cable delivery systems</title>
1186		<section id="dvbc-params">
1187			<title>DVB-C delivery system</title>
1188			<para>The DVB-C Annex-A is the widely used cable standard. Transmission uses QAM modulation.</para>
1189			<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>
1190			<para>The following parameters are valid for DVB-C Annex A/C:</para>
1191			<itemizedlist mark='opencircle'>
1192				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1193				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1194				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1195				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1196				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1197				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1198				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1199				<listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
1200				<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1201				<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1202			</itemizedlist>
1203			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1204		</section>
1205		<section id="dvbc-annex-b-params">
1206			<title>DVB-C Annex B delivery system</title>
1207			<para>The DVB-C Annex-B is only used on a few Countries like the United States.</para>
1208			<para>The following parameters are valid for DVB-C Annex B:</para>
1209			<itemizedlist mark='opencircle'>
1210				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1211				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1212				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1213				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1214				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1215				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1216				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1217				<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1218			</itemizedlist>
1219			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1220		</section>
1221		</section>
1222		<section id="frontend-property-satellital-systems">
1223		<title>Properties used on satellital delivery systems</title>
1224		<section id="dvbs-params">
1225			<title>DVB-S delivery system</title>
1226			<para>The following parameters are valid for DVB-S:</para>
1227			<itemizedlist mark='opencircle'>
1228				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1229				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1230				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1231				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1232				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1233				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1234				<listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
1235				<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1236				<listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem>
1237				<listitem><para><link linkend="DTV-TONE"><constant>DTV_TONE</constant></link></para></listitem>
1238			</itemizedlist>
1239			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1240			<para>Future implementations might add those two missing parameters:</para>
1241			<itemizedlist mark='opencircle'>
1242				<listitem><para><link linkend="DTV-DISEQC-MASTER"><constant>DTV_DISEQC_MASTER</constant></link></para></listitem>
1243				<listitem><para><link linkend="DTV-DISEQC-SLAVE-REPLY"><constant>DTV_DISEQC_SLAVE_REPLY</constant></link></para></listitem>
1244			</itemizedlist>
1245		</section>
1246		<section id="dvbs2-params">
1247			<title>DVB-S2 delivery system</title>
1248			<para>In addition to all parameters valid for DVB-S, DVB-S2 supports the following parameters:</para>
1249			<itemizedlist mark='opencircle'>
1250				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1251				<listitem><para><link linkend="DTV-PILOT"><constant>DTV_PILOT</constant></link></para></listitem>
1252				<listitem><para><link linkend="DTV-ROLLOFF"><constant>DTV_ROLLOFF</constant></link></para></listitem>
1253				<listitem><para><link linkend="DTV-STREAM-ID"><constant>DTV_STREAM_ID</constant></link></para></listitem>
1254			</itemizedlist>
1255			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1256		</section>
1257		<section id="turbo-params">
1258			<title>Turbo code delivery system</title>
1259			<para>In addition to all parameters valid for DVB-S, turbo code supports the following parameters:</para>
1260			<itemizedlist mark='opencircle'>
1261				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1262			</itemizedlist>
1263		</section>
1264		<section id="isdbs-params">
1265			<title>ISDB-S delivery system</title>
1266			<para>The following parameters are valid for ISDB-S:</para>
1267			<itemizedlist mark='opencircle'>
1268				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1269				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1270				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1271				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1272				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1273				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1274				<listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
1275				<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1276				<listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem>
1277				<listitem><para><link linkend="DTV-STREAM-ID"><constant>DTV_STREAM_ID</constant></link></para></listitem>
1278			</itemizedlist>
1279		</section>
1280		</section>
1281	</section>
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