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Based on kernel version 4.0. Page generated on 2015-04-14 21:23 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
124	 requires read/write 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>Valid values: 0, 1, 2, 4, -1 (AUTO)</para>
559				<para>when DTV_ISDBT_SOUND_BROADCASTING is active, value 8 is also valid.</para>
560				<para>Note: The real time interleaving length depends on the mode (fft-size). The values
561					here are referring to what can be found in the TMCC-structure, as shown in the table below.</para>
562				<informaltable id="isdbt-layer-interleaving-table">
563					<tgroup cols="4" align="center">
564						<tbody>
565							<row>
566								<entry>DTV_ISDBT_LAYER*_TIME_INTERLEAVING</entry>
567								<entry>Mode 1 (2K FFT)</entry>
568								<entry>Mode 2 (4K FFT)</entry>
569								<entry>Mode 3 (8K FFT)</entry>
570							</row>
571							<row>
572								<entry>0</entry>
573								<entry>0</entry>
574								<entry>0</entry>
575								<entry>0</entry>
576							</row>
577							<row>
578								<entry>1</entry>
579								<entry>4</entry>
580								<entry>2</entry>
581								<entry>1</entry>
582							</row>
583							<row>
584								<entry>2</entry>
585								<entry>8</entry>
586								<entry>4</entry>
587								<entry>2</entry>
588							</row>
589							<row>
590								<entry>4</entry>
591								<entry>16</entry>
592								<entry>8</entry>
593								<entry>4</entry>
594							</row>
595						</tbody>
596					</tgroup>
597				</informaltable>
598			</section>
599			<section id="DTV-ATSCMH-FIC-VER">
600				<title><constant>DTV_ATSCMH_FIC_VER</constant></title>
601				<para>Version number of the FIC (Fast Information Channel) signaling data.</para>
602				<para>FIC is used for relaying information to allow rapid service acquisition by the receiver.</para>
603				<para>Possible values: 0, 1, 2, 3, ..., 30, 31</para>
604			</section>
605			<section id="DTV-ATSCMH-PARADE-ID">
606				<title><constant>DTV_ATSCMH_PARADE_ID</constant></title>
607				<para>Parade identification number</para>
608				<para>A parade is a collection of up to eight MH groups, conveying one or two ensembles.</para>
609				<para>Possible values: 0, 1, 2, 3, ..., 126, 127</para>
610			</section>
611			<section id="DTV-ATSCMH-NOG">
612				<title><constant>DTV_ATSCMH_NOG</constant></title>
613				<para>Number of MH groups per MH subframe for a designated parade.</para>
614				<para>Possible values: 1, 2, 3, 4, 5, 6, 7, 8</para>
615			</section>
616			<section id="DTV-ATSCMH-TNOG">
617				<title><constant>DTV_ATSCMH_TNOG</constant></title>
618				<para>Total number of MH groups including all MH groups belonging to all MH parades in one MH subframe.</para>
619				<para>Possible values: 0, 1, 2, 3, ..., 30, 31</para>
620			</section>
621			<section id="DTV-ATSCMH-SGN">
622				<title><constant>DTV_ATSCMH_SGN</constant></title>
623				<para>Start group number.</para>
624				<para>Possible values: 0, 1, 2, 3, ..., 14, 15</para>
625			</section>
626			<section id="DTV-ATSCMH-PRC">
627				<title><constant>DTV_ATSCMH_PRC</constant></title>
628				<para>Parade repetition cycle.</para>
629				<para>Possible values: 1, 2, 3, 4, 5, 6, 7, 8</para>
630			</section>
631			<section id="DTV-ATSCMH-RS-FRAME-MODE">
632				<title><constant>DTV_ATSCMH_RS_FRAME_MODE</constant></title>
633				<para>RS frame mode.</para>
634				<para>Possible values are:</para>
635			  <para id="atscmh-rs-frame-mode">
636	<programlisting>
637	typedef enum atscmh_rs_frame_mode {
638		ATSCMH_RSFRAME_PRI_ONLY  = 0,
639		ATSCMH_RSFRAME_PRI_SEC   = 1,
640	} atscmh_rs_frame_mode_t;
641	</programlisting>
642			  </para>
643			</section>
644			<section id="DTV-ATSCMH-RS-FRAME-ENSEMBLE">
645				<title><constant>DTV_ATSCMH_RS_FRAME_ENSEMBLE</constant></title>
646				<para>RS frame ensemble.</para>
647				<para>Possible values are:</para>
648			  <para id="atscmh-rs-frame-ensemble">
649	<programlisting>
650	typedef enum atscmh_rs_frame_ensemble {
651		ATSCMH_RSFRAME_ENS_PRI   = 0,
652		ATSCMH_RSFRAME_ENS_SEC   = 1,
653	} atscmh_rs_frame_ensemble_t;
654	</programlisting>
655			  </para>
656			</section>
657			<section id="DTV-ATSCMH-RS-CODE-MODE-PRI">
658				<title><constant>DTV_ATSCMH_RS_CODE_MODE_PRI</constant></title>
659				<para>RS code mode (primary).</para>
660				<para>Possible values are:</para>
661			  <para id="atscmh-rs-code-mode">
662	<programlisting>
663	typedef enum atscmh_rs_code_mode {
664		ATSCMH_RSCODE_211_187    = 0,
665		ATSCMH_RSCODE_223_187    = 1,
666		ATSCMH_RSCODE_235_187    = 2,
667	} atscmh_rs_code_mode_t;
668	</programlisting>
669			  </para>
670			</section>
671			<section id="DTV-ATSCMH-RS-CODE-MODE-SEC">
672				<title><constant>DTV_ATSCMH_RS_CODE_MODE_SEC</constant></title>
673				<para>RS code mode (secondary).</para>
674				<para>Possible values are:</para>
675	<programlisting>
676	typedef enum atscmh_rs_code_mode {
677		ATSCMH_RSCODE_211_187    = 0,
678		ATSCMH_RSCODE_223_187    = 1,
679		ATSCMH_RSCODE_235_187    = 2,
680	} atscmh_rs_code_mode_t;
681	</programlisting>
682			</section>
683			<section id="DTV-ATSCMH-SCCC-BLOCK-MODE">
684				<title><constant>DTV_ATSCMH_SCCC_BLOCK_MODE</constant></title>
685				<para>Series Concatenated Convolutional Code Block Mode.</para>
686				<para>Possible values are:</para>
687			  <para id="atscmh-sccc-block-mode">
688	<programlisting>
689	typedef enum atscmh_sccc_block_mode {
690		ATSCMH_SCCC_BLK_SEP      = 0,
691		ATSCMH_SCCC_BLK_COMB     = 1,
692	} atscmh_sccc_block_mode_t;
693	</programlisting>
694			  </para>
695			</section>
696			<section id="DTV-ATSCMH-SCCC-CODE-MODE-A">
697				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_A</constant></title>
698				<para>Series Concatenated Convolutional Code Rate.</para>
699				<para>Possible values are:</para>
700			  <para id="atscmh-sccc-code-mode">
701	<programlisting>
702	typedef enum atscmh_sccc_code_mode {
703		ATSCMH_SCCC_CODE_HLF     = 0,
704		ATSCMH_SCCC_CODE_QTR     = 1,
705	} atscmh_sccc_code_mode_t;
706	</programlisting>
707			  </para>
708			</section>
709			<section id="DTV-ATSCMH-SCCC-CODE-MODE-B">
710				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_B</constant></title>
711				<para>Series Concatenated Convolutional Code Rate.</para>
712				<para>Possible values are:</para>
713	<programlisting>
714	typedef enum atscmh_sccc_code_mode {
715		ATSCMH_SCCC_CODE_HLF     = 0,
716		ATSCMH_SCCC_CODE_QTR     = 1,
717	} atscmh_sccc_code_mode_t;
718	</programlisting>
719			</section>
720			<section id="DTV-ATSCMH-SCCC-CODE-MODE-C">
721				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_C</constant></title>
722				<para>Series Concatenated Convolutional Code Rate.</para>
723				<para>Possible values are:</para>
724	<programlisting>
725	typedef enum atscmh_sccc_code_mode {
726		ATSCMH_SCCC_CODE_HLF     = 0,
727		ATSCMH_SCCC_CODE_QTR     = 1,
728	} atscmh_sccc_code_mode_t;
729	</programlisting>
730			</section>
731			<section id="DTV-ATSCMH-SCCC-CODE-MODE-D">
732				<title><constant>DTV_ATSCMH_SCCC_CODE_MODE_D</constant></title>
733				<para>Series Concatenated Convolutional Code Rate.</para>
734				<para>Possible values are:</para>
735	<programlisting>
736	typedef enum atscmh_sccc_code_mode {
737		ATSCMH_SCCC_CODE_HLF     = 0,
738		ATSCMH_SCCC_CODE_QTR     = 1,
739	} atscmh_sccc_code_mode_t;
740	</programlisting>
741			</section>
742		</section>
743		<section id="DTV-API-VERSION">
744		<title><constant>DTV_API_VERSION</constant></title>
745		<para>Returns the major/minor version of the DVB API</para>
746		</section>
747		<section id="DTV-CODE-RATE-HP">
748		<title><constant>DTV_CODE_RATE_HP</constant></title>
749		<para>Used on terrestrial transmissions. The acceptable values are:
750		</para>
751		<programlisting>
752	typedef enum fe_code_rate {
753		FEC_NONE = 0,
754		FEC_1_2,
755		FEC_2_3,
756		FEC_3_4,
757		FEC_4_5,
758		FEC_5_6,
759		FEC_6_7,
760		FEC_7_8,
761		FEC_8_9,
762		FEC_AUTO,
763		FEC_3_5,
764		FEC_9_10,
765	} fe_code_rate_t;
766		</programlisting>
767		</section>
768		<section id="DTV-CODE-RATE-LP">
769		<title><constant>DTV_CODE_RATE_LP</constant></title>
770		<para>Used on terrestrial transmissions. The acceptable values are:
771		</para>
772		<programlisting>
773	typedef enum fe_code_rate {
774		FEC_NONE = 0,
775		FEC_1_2,
776		FEC_2_3,
777		FEC_3_4,
778		FEC_4_5,
779		FEC_5_6,
780		FEC_6_7,
781		FEC_7_8,
782		FEC_8_9,
783		FEC_AUTO,
784		FEC_3_5,
785		FEC_9_10,
786	} fe_code_rate_t;
787		</programlisting>
788		</section>
789		<section id="DTV-GUARD-INTERVAL">
790			<title><constant>DTV_GUARD_INTERVAL</constant></title>
791	
792			<para>Possible values are:</para>
793	<programlisting>
794	typedef enum fe_guard_interval {
795		GUARD_INTERVAL_1_32,
796		GUARD_INTERVAL_1_16,
797		GUARD_INTERVAL_1_8,
798		GUARD_INTERVAL_1_4,
799		GUARD_INTERVAL_AUTO,
800		GUARD_INTERVAL_1_128,
801		GUARD_INTERVAL_19_128,
802		GUARD_INTERVAL_19_256,
803		GUARD_INTERVAL_PN420,
804		GUARD_INTERVAL_PN595,
805		GUARD_INTERVAL_PN945,
806	} fe_guard_interval_t;
807	</programlisting>
808	
809			<para>Notes:</para>
810			<para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
811				try to find the correct guard interval (if capable) and will use TMCC to fill
812				in the missing parameters.</para>
813			<para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para>
814			<para>3) DTMB specifies PN420, PN595 and PN945.</para>
815		</section>
816		<section id="DTV-TRANSMISSION-MODE">
817			<title><constant>DTV_TRANSMISSION_MODE</constant></title>
818	
819			<para>Specifies the number of carriers used by the standard</para>
820	
821			<para>Possible values are:</para>
822	<programlisting>
823	typedef enum fe_transmit_mode {
824		TRANSMISSION_MODE_2K,
825		TRANSMISSION_MODE_8K,
826		TRANSMISSION_MODE_AUTO,
827		TRANSMISSION_MODE_4K,
828		TRANSMISSION_MODE_1K,
829		TRANSMISSION_MODE_16K,
830		TRANSMISSION_MODE_32K,
831		TRANSMISSION_MODE_C1,
832		TRANSMISSION_MODE_C3780,
833	} fe_transmit_mode_t;
834	</programlisting>
835			<para>Notes:</para>
836			<para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
837				'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para>
838	
839			<para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the
840				hardware will try to find the correct FFT-size (if capable) and will
841				use TMCC to fill in the missing parameters.</para>
842			<para>3) DVB-T specifies 2K and 8K as valid sizes.</para>
843			<para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para>
844			<para>5) DTMB specifies C1 and C3780.</para>
845		</section>
846		<section id="DTV-HIERARCHY">
847		<title><constant>DTV_HIERARCHY</constant></title>
848		<para>Frontend hierarchy</para>
849		<programlisting>
850	typedef enum fe_hierarchy {
851		 HIERARCHY_NONE,
852		 HIERARCHY_1,
853		 HIERARCHY_2,
854		 HIERARCHY_4,
855		 HIERARCHY_AUTO
856	 } fe_hierarchy_t;
857		</programlisting>
858		</section>
859		<section id="DTV-STREAM-ID">
860		<title><constant>DTV_STREAM_ID</constant></title>
861		<para>DVB-S2, DVB-T2 and ISDB-S support the transmission of several
862		      streams on a single transport stream.
863		      This property enables the DVB driver to handle substream filtering,
864		      when supported by the hardware.
865		      By default, substream filtering is disabled.
866		</para><para>
867		      For DVB-S2 and DVB-T2, the valid substream id range is from 0 to 255.
868		</para><para>
869		      For ISDB, the valid substream id range is from 1 to 65535.
870		</para><para>
871		      To disable it, you should use the special macro NO_STREAM_ID_FILTER.
872		</para><para>
873		      Note: any value outside the id range also disables filtering.
874		</para>
875		</section>
876		<section id="DTV-DVBT2-PLP-ID-LEGACY">
877			<title><constant>DTV_DVBT2_PLP_ID_LEGACY</constant></title>
878			<para>Obsolete, replaced with DTV_STREAM_ID.</para>
879		</section>
880		<section id="DTV-ENUM-DELSYS">
881			<title><constant>DTV_ENUM_DELSYS</constant></title>
882			<para>A Multi standard frontend needs to advertise the delivery systems provided.
883				Applications need to enumerate the provided delivery systems, before using
884				any other operation with the frontend. Prior to it's introduction,
885				FE_GET_INFO was used to determine a frontend type. A frontend which
886				provides more than a single delivery system, FE_GET_INFO doesn't help much.
887				Applications which intends to use a multistandard frontend must enumerate
888				the delivery systems associated with it, rather than trying to use
889				FE_GET_INFO. In the case of a legacy frontend, the result is just the same
890				as with FE_GET_INFO, but in a more structured format </para>
891		</section>
892		<section id="DTV-INTERLEAVING">
893		<title><constant>DTV_INTERLEAVING</constant></title>
894		<para id="fe-interleaving">Interleaving mode</para>
895		<programlisting>
896	enum fe_interleaving {
897		INTERLEAVING_NONE,
898		INTERLEAVING_AUTO,
899		INTERLEAVING_240,
900		INTERLEAVING_720,
901	};
902		</programlisting>
903		</section>
904		<section id="DTV-LNA">
905		<title><constant>DTV_LNA</constant></title>
906		<para>Low-noise amplifier.</para>
907		<para>Hardware might offer controllable LNA which can be set manually
908			using that parameter. Usually LNA could be found only from
909			terrestrial devices if at all.</para>
910		<para>Possible values: 0, 1, LNA_AUTO</para>
911		<para>0, LNA off</para>
912		<para>1, LNA on</para>
913		<para>use the special macro LNA_AUTO to set LNA auto</para>
914		</section>
915	</section>
916	
917		<section id="frontend-stat-properties">
918		<title>Frontend statistics indicators</title>
919		<para>The values are returned via <constant>dtv_property.stat</constant>.
920		      If the property is supported, <constant>dtv_property.stat.len</constant> is bigger than zero.</para>
921		<para>For most delivery systems, <constant>dtv_property.stat.len</constant>
922		      will be 1 if the stats is supported, and the properties will
923		      return a single value for each parameter.</para>
924		<para>It should be noticed, however, that new OFDM delivery systems
925		      like ISDB can use different modulation types for each group of
926		      carriers. On such standards, up to 3 groups of statistics can be
927		      provided, and <constant>dtv_property.stat.len</constant> is updated
928		      to reflect the "global" metrics, plus one metric per each carrier
929		      group (called "layer" on ISDB).</para>
930		<para>So, in order to be consistent with other delivery systems, the first
931		      value at <link linkend="dtv-stats"><constant>dtv_property.stat.dtv_stats</constant></link>
932		      array refers to the global metric. The other elements of the array
933		      represent each layer, starting from layer A(index 1),
934		      layer B (index 2) and so on.</para>
935		<para>The number of filled elements are stored at <constant>dtv_property.stat.len</constant>.</para>
936		<para>Each element of the <constant>dtv_property.stat.dtv_stats</constant> array consists on two elements:</para>
937		<itemizedlist mark='opencircle'>
938			<listitem><para><constant>svalue</constant> or <constant>uvalue</constant>, where
939				<constant>svalue</constant> is for signed values of the measure (dB measures)
940				and <constant>uvalue</constant> is for unsigned values (counters, relative scale)</para></listitem>
941			<listitem><para><constant>scale</constant> - Scale for the value. It can be:</para>
942				<itemizedlist mark='bullet' id="fecap-scale-params">
943					<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>
944					<listitem><para><constant>FE_SCALE_DECIBEL</constant> - parameter is a signed value, measured in 1/1000 dB</para></listitem>
945					<listitem><para><constant>FE_SCALE_RELATIVE</constant> - parameter is a unsigned value, where 0 means 0% and 65535 means 100%.</para></listitem>
946					<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>
947				</itemizedlist>
948			</listitem>
949		</itemizedlist>
950		<section id="DTV-STAT-SIGNAL-STRENGTH">
951			<title><constant>DTV_STAT_SIGNAL_STRENGTH</constant></title>
952			<para>Indicates the signal strength level at the analog part of the tuner or of the demod.</para>
953			<para>Possible scales for this metric are:</para>
954			<itemizedlist mark='bullet'>
955				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
956				<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>
957				<listitem><para><constant>FE_SCALE_RELATIVE</constant> - The frontend provides a 0% to 100% measurement for power (actually, 0 to 65535).</para></listitem>
958			</itemizedlist>
959		</section>
960		<section id="DTV-STAT-CNR">
961			<title><constant>DTV_STAT_CNR</constant></title>
962			<para>Indicates the Signal to Noise ratio for the main carrier.</para>
963			<para>Possible scales for this metric are:</para>
964			<itemizedlist mark='bullet'>
965				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
966				<listitem><para><constant>FE_SCALE_DECIBEL</constant> - Signal/Noise ratio is in 0.0001 dB units.</para></listitem>
967				<listitem><para><constant>FE_SCALE_RELATIVE</constant> - The frontend provides a 0% to 100% measurement for Signal/Noise (actually, 0 to 65535).</para></listitem>
968			</itemizedlist>
969		</section>
970		<section id="DTV-STAT-PRE-ERROR-BIT-COUNT">
971			<title><constant>DTV_STAT_PRE_ERROR_BIT_COUNT</constant></title>
972			<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>
973			<para>This measure is taken during the same interval as <constant>DTV_STAT_PRE_TOTAL_BIT_COUNT</constant>.</para>
974			<para>In order to get the BER (Bit Error Rate) measurement, it should be divided by
975			<link linkend="DTV-STAT-PRE-TOTAL-BIT-COUNT"><constant>DTV_STAT_PRE_TOTAL_BIT_COUNT</constant></link>.</para>
976			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
977			      The frontend may reset it when a channel/transponder is tuned.</para>
978			<para>Possible scales for this metric are:</para>
979			<itemizedlist mark='bullet'>
980				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
981				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of error bits counted before the inner coding.</para></listitem>
982			</itemizedlist>
983		</section>
984		<section id="DTV-STAT-PRE-TOTAL-BIT-COUNT">
985			<title><constant>DTV_STAT_PRE_TOTAL_BIT_COUNT</constant></title>
986			<para>Measures the amount of bits received before the inner code block, during the same period as
987			<link linkend="DTV-STAT-PRE-ERROR-BIT-COUNT"><constant>DTV_STAT_PRE_ERROR_BIT_COUNT</constant></link> measurement was taken.</para>
988			<para>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream,
989			      as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</para>
990			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
991			      The frontend may reset it when a channel/transponder is tuned.</para>
992			<para>Possible scales for this metric are:</para>
993			<itemizedlist mark='bullet'>
994				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
995				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of bits counted while measuring
996					 <link linkend="DTV-STAT-PRE-ERROR-BIT-COUNT"><constant>DTV_STAT_PRE_ERROR_BIT_COUNT</constant></link>.</para></listitem>
997			</itemizedlist>
998		</section>
999		<section id="DTV-STAT-POST-ERROR-BIT-COUNT">
1000			<title><constant>DTV_STAT_POST_ERROR_BIT_COUNT</constant></title>
1001			<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>
1002			<para>This measure is taken during the same interval as <constant>DTV_STAT_POST_TOTAL_BIT_COUNT</constant>.</para>
1003			<para>In order to get the BER (Bit Error Rate) measurement, it should be divided by
1004			<link linkend="DTV-STAT-POST-TOTAL-BIT-COUNT"><constant>DTV_STAT_POST_TOTAL_BIT_COUNT</constant></link>.</para>
1005			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
1006			      The frontend may reset it when a channel/transponder is tuned.</para>
1007			<para>Possible scales for this metric are:</para>
1008			<itemizedlist mark='bullet'>
1009				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
1010				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of error bits counted after the inner coding.</para></listitem>
1011			</itemizedlist>
1012		</section>
1013		<section id="DTV-STAT-POST-TOTAL-BIT-COUNT">
1014			<title><constant>DTV_STAT_POST_TOTAL_BIT_COUNT</constant></title>
1015			<para>Measures the amount of bits received after the inner coding, during the same period as
1016			<link linkend="DTV-STAT-POST-ERROR-BIT-COUNT"><constant>DTV_STAT_POST_ERROR_BIT_COUNT</constant></link> measurement was taken.</para>
1017			<para>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream,
1018			      as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</para>
1019			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
1020			      The frontend may reset it when a channel/transponder is tuned.</para>
1021			<para>Possible scales for this metric are:</para>
1022			<itemizedlist mark='bullet'>
1023				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
1024				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of bits counted while measuring
1025					 <link linkend="DTV-STAT-POST-ERROR-BIT-COUNT"><constant>DTV_STAT_POST_ERROR_BIT_COUNT</constant></link>.</para></listitem>
1026			</itemizedlist>
1027		</section>
1028		<section id="DTV-STAT-ERROR-BLOCK-COUNT">
1029			<title><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></title>
1030			<para>Measures the number of block errors after the outer forward error correction coding (after Reed-Solomon or other outer code).</para>
1031			<para>This measurement is monotonically increased, as the frontend gets more bit count measurements.
1032			      The frontend may reset it when a channel/transponder is tuned.</para>
1033			<para>Possible scales for this metric are:</para>
1034			<itemizedlist mark='bullet'>
1035				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
1036				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of error blocks counted after the outer coding.</para></listitem>
1037			</itemizedlist>
1038		</section>
1039		<section id="DTV-STAT-TOTAL-BLOCK-COUNT">
1040			<title><constant>DTV-STAT_TOTAL_BLOCK_COUNT</constant></title>
1041			<para>Measures the total number of blocks received during the same period as
1042			<link linkend="DTV-STAT-ERROR-BLOCK-COUNT"><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></link> measurement was taken.</para>
1043			<para>It can be used to calculate the PER indicator, by dividing
1044			<link linkend="DTV-STAT-ERROR-BLOCK-COUNT"><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></link>
1045			by <link linkend="DTV-STAT-TOTAL-BLOCK-COUNT"><constant>DTV-STAT-TOTAL-BLOCK-COUNT</constant></link>.</para>
1046			<para>Possible scales for this metric are:</para>
1047			<itemizedlist mark='bullet'>
1048				<listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem>
1049				<listitem><para><constant>FE_SCALE_COUNTER</constant> - Number of blocks counted while measuring
1050				<link linkend="DTV-STAT-ERROR-BLOCK-COUNT"><constant>DTV_STAT_ERROR_BLOCK_COUNT</constant></link>.</para></listitem>
1051			</itemizedlist>
1052		</section>
1053		</section>
1054	
1055		<section id="frontend-property-terrestrial-systems">
1056		<title>Properties used on terrestrial delivery systems</title>
1057			<section id="dvbt-params">
1058				<title>DVB-T delivery system</title>
1059				<para>The following parameters are valid for DVB-T:</para>
1060				<itemizedlist mark='opencircle'>
1061					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1062					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1063					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1064					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1065					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1066					<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1067					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1068					<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1069					<listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
1070					<listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
1071					<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1072					<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1073					<listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
1074					<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1075				</itemizedlist>
1076				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1077			</section>
1078			<section id="dvbt2-params">
1079				<title>DVB-T2 delivery system</title>
1080				<para>DVB-T2 support is currently in the early stages
1081				of development, so expect that this section maygrow and become
1082				more detailed with time.</para>
1083			<para>The following parameters are valid for DVB-T2:</para>
1084			<itemizedlist mark='opencircle'>
1085				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1086				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1087				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1088				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1089				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1090				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1091				<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1092				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1093				<listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
1094				<listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
1095				<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1096				<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1097				<listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
1098				<listitem><para><link linkend="DTV-STREAM-ID"><constant>DTV_STREAM_ID</constant></link></para></listitem>
1099				<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1100			</itemizedlist>
1101			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1102			</section>
1103			<section id="isdbt">
1104			<title>ISDB-T delivery system</title>
1105			<para>This ISDB-T/ISDB-Tsb API extension should reflect all information
1106				needed to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible
1107				that some very sophisticated devices won't need certain parameters to
1108				tune.</para>
1109			<para>The information given here should help application writers to know how
1110				to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API.</para>
1111			<para>The details given here about ISDB-T and ISDB-Tsb are just enough to
1112				basically show the dependencies between the needed parameter values,
1113				but surely some information is left out. For more detailed information
1114				see the following documents:</para>
1115			<para>ARIB STD-B31 - "Transmission System for Digital Terrestrial
1116				Television Broadcasting" and</para>
1117			<para>ARIB TR-B14 - "Operational Guidelines for Digital Terrestrial
1118				Television Broadcasting".</para>
1119			<para>In order to understand the ISDB specific parameters,
1120				one has to have some knowledge the channel structure in
1121				ISDB-T and ISDB-Tsb. I.e. it has to be known to
1122				the reader that an ISDB-T channel consists of 13 segments,
1123				that it can have up to 3 layer sharing those segments,
1124				and things like that.</para>
1125			<para>The following parameters are valid for ISDB-T:</para>
1126			<itemizedlist mark='opencircle'>
1127				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1128				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1129				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1130				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1131				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1132				<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1133				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1134				<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1135				<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1136				<listitem><para><link linkend="DTV-ISDBT-LAYER-ENABLED"><constant>DTV_ISDBT_LAYER_ENABLED</constant></link></para></listitem>
1137				<listitem><para><link linkend="DTV-ISDBT-PARTIAL-RECEPTION"><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></link></para></listitem>
1138				<listitem><para><link linkend="DTV-ISDBT-SOUND-BROADCASTING"><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></link></para></listitem>
1139				<listitem><para><link linkend="DTV-ISDBT-SB-SUBCHANNEL-ID"><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></link></para></listitem>
1140				<listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-IDX"><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></link></para></listitem>
1141				<listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-COUNT"><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></link></para></listitem>
1142				<listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERA_FEC</constant></link></para></listitem>
1143				<listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERA_MODULATION</constant></link></para></listitem>
1144				<listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant></link></para></listitem>
1145				<listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERA_TIME_INTERLEAVING</constant></link></para></listitem>
1146				<listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERB_FEC</constant></link></para></listitem>
1147				<listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERB_MODULATION</constant></link></para></listitem>
1148				<listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERB_SEGMENT_COUNT</constant></link></para></listitem>
1149				<listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERB_TIME_INTERLEAVING</constant></link></para></listitem>
1150				<listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERC_FEC</constant></link></para></listitem>
1151				<listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERC_MODULATION</constant></link></para></listitem>
1152				<listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERC_SEGMENT_COUNT</constant></link></para></listitem>
1153				<listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERC_TIME_INTERLEAVING</constant></link></para></listitem>
1154			</itemizedlist>
1155			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1156			</section>
1157			<section id="atsc-params">
1158				<title>ATSC delivery system</title>
1159				<para>The following parameters are valid for ATSC:</para>
1160				<itemizedlist mark='opencircle'>
1161					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1162					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1163					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1164					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1165					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1166					<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1167					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1168				</itemizedlist>
1169				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1170			</section>
1171			<section id="atscmh-params">
1172				<title>ATSC-MH delivery system</title>
1173				<para>The following parameters are valid for ATSC-MH:</para>
1174				<itemizedlist mark='opencircle'>
1175					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1176					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1177					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1178					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1179					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1180					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1181					<listitem><para><link linkend="DTV-ATSCMH-FIC-VER"><constant>DTV_ATSCMH_FIC_VER</constant></link></para></listitem>
1182					<listitem><para><link linkend="DTV-ATSCMH-PARADE-ID"><constant>DTV_ATSCMH_PARADE_ID</constant></link></para></listitem>
1183					<listitem><para><link linkend="DTV-ATSCMH-NOG"><constant>DTV_ATSCMH_NOG</constant></link></para></listitem>
1184					<listitem><para><link linkend="DTV-ATSCMH-TNOG"><constant>DTV_ATSCMH_TNOG</constant></link></para></listitem>
1185					<listitem><para><link linkend="DTV-ATSCMH-SGN"><constant>DTV_ATSCMH_SGN</constant></link></para></listitem>
1186					<listitem><para><link linkend="DTV-ATSCMH-PRC"><constant>DTV_ATSCMH_PRC</constant></link></para></listitem>
1187					<listitem><para><link linkend="DTV-ATSCMH-RS-FRAME-MODE"><constant>DTV_ATSCMH_RS_FRAME_MODE</constant></link></para></listitem>
1188					<listitem><para><link linkend="DTV-ATSCMH-RS-FRAME-ENSEMBLE"><constant>DTV_ATSCMH_RS_FRAME_ENSEMBLE</constant></link></para></listitem>
1189					<listitem><para><link linkend="DTV-ATSCMH-RS-CODE-MODE-PRI"><constant>DTV_ATSCMH_RS_CODE_MODE_PRI</constant></link></para></listitem>
1190					<listitem><para><link linkend="DTV-ATSCMH-RS-CODE-MODE-SEC"><constant>DTV_ATSCMH_RS_CODE_MODE_SEC</constant></link></para></listitem>
1191					<listitem><para><link linkend="DTV-ATSCMH-SCCC-BLOCK-MODE"><constant>DTV_ATSCMH_SCCC_BLOCK_MODE</constant></link></para></listitem>
1192					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-A"><constant>DTV_ATSCMH_SCCC_CODE_MODE_A</constant></link></para></listitem>
1193					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-B"><constant>DTV_ATSCMH_SCCC_CODE_MODE_B</constant></link></para></listitem>
1194					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-C"><constant>DTV_ATSCMH_SCCC_CODE_MODE_C</constant></link></para></listitem>
1195					<listitem><para><link linkend="DTV-ATSCMH-SCCC-CODE-MODE-D"><constant>DTV_ATSCMH_SCCC_CODE_MODE_D</constant></link></para></listitem>
1196				</itemizedlist>
1197				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1198			</section>
1199			<section id="dtmb-params">
1200				<title>DTMB delivery system</title>
1201				<para>The following parameters are valid for DTMB:</para>
1202				<itemizedlist mark='opencircle'>
1203					<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1204					<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1205					<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1206					<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1207					<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1208					<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1209					<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
1210					<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1211					<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1212					<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
1213					<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
1214					<listitem><para><link linkend="DTV-INTERLEAVING"><constant>DTV_INTERLEAVING</constant></link></para></listitem>
1215					<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</constant></link></para></listitem>
1216				</itemizedlist>
1217				<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1218			</section>
1219		</section>
1220		<section id="frontend-property-cable-systems">
1221		<title>Properties used on cable delivery systems</title>
1222		<section id="dvbc-params">
1223			<title>DVB-C delivery system</title>
1224			<para>The DVB-C Annex-A is the widely used cable standard. Transmission uses QAM modulation.</para>
1225			<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>
1226			<para>The following parameters are valid for DVB-C Annex A/C:</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-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1234				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1235				<listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
1236				<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1237				<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</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		</section>
1241		<section id="dvbc-annex-b-params">
1242			<title>DVB-C Annex B delivery system</title>
1243			<para>The DVB-C Annex-B is only used on a few Countries like the United States.</para>
1244			<para>The following parameters are valid for DVB-C Annex B:</para>
1245			<itemizedlist mark='opencircle'>
1246				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1247				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1248				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1249				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1250				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1251				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1252				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1253				<listitem><para><link linkend="DTV-LNA"><constant>DTV_LNA</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>
1258		<section id="frontend-property-satellital-systems">
1259		<title>Properties used on satellital delivery systems</title>
1260		<section id="dvbs-params">
1261			<title>DVB-S delivery system</title>
1262			<para>The following parameters are valid for DVB-S:</para>
1263			<itemizedlist mark='opencircle'>
1264				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1265				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1266				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1267				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1268				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1269				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1270				<listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
1271				<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1272				<listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem>
1273				<listitem><para><link linkend="DTV-TONE"><constant>DTV_TONE</constant></link></para></listitem>
1274			</itemizedlist>
1275			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1276			<para>Future implementations might add those two missing parameters:</para>
1277			<itemizedlist mark='opencircle'>
1278				<listitem><para><link linkend="DTV-DISEQC-MASTER"><constant>DTV_DISEQC_MASTER</constant></link></para></listitem>
1279				<listitem><para><link linkend="DTV-DISEQC-SLAVE-REPLY"><constant>DTV_DISEQC_SLAVE_REPLY</constant></link></para></listitem>
1280			</itemizedlist>
1281		</section>
1282		<section id="dvbs2-params">
1283			<title>DVB-S2 delivery system</title>
1284			<para>In addition to all parameters valid for DVB-S, DVB-S2 supports the following parameters:</para>
1285			<itemizedlist mark='opencircle'>
1286				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1287				<listitem><para><link linkend="DTV-PILOT"><constant>DTV_PILOT</constant></link></para></listitem>
1288				<listitem><para><link linkend="DTV-ROLLOFF"><constant>DTV_ROLLOFF</constant></link></para></listitem>
1289				<listitem><para><link linkend="DTV-STREAM-ID"><constant>DTV_STREAM_ID</constant></link></para></listitem>
1290			</itemizedlist>
1291			<para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para>
1292		</section>
1293		<section id="turbo-params">
1294			<title>Turbo code delivery system</title>
1295			<para>In addition to all parameters valid for DVB-S, turbo code supports the following parameters:</para>
1296			<itemizedlist mark='opencircle'>
1297				<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
1298			</itemizedlist>
1299		</section>
1300		<section id="isdbs-params">
1301			<title>ISDB-S delivery system</title>
1302			<para>The following parameters are valid for ISDB-S:</para>
1303			<itemizedlist mark='opencircle'>
1304				<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
1305				<listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem>
1306				<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
1307				<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
1308				<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
1309				<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
1310				<listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem>
1311				<listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem>
1312				<listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem>
1313				<listitem><para><link linkend="DTV-STREAM-ID"><constant>DTV_STREAM_ID</constant></link></para></listitem>
1314			</itemizedlist>
1315		</section>
1316		</section>
1317	</section>
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