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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>FE_GET_PROPERTY/FE_SET_PROPERTY</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API" /><link rel="up" href="dvb_frontend.html" title="Chapter&#160;9.&#160;DVB Frontend API" /><link rel="prev" href="frontend_fcalls.html" title="Frontend Function Calls" /><link rel="next" href="dvb_demux.html" title="Chapter&#160;10.&#160;DVB Demux Device" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><code class="constant">FE_GET_PROPERTY/FE_SET_PROPERTY</code></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="frontend_fcalls.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;9.&#160;DVB Frontend API</th><td width="20%" align="right">&#160;<a accesskey="n" href="dvb_demux.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="FE_GET_SET_PROPERTY"></a><code class="constant">FE_GET_PROPERTY/FE_SET_PROPERTY</code></h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dtv-stats">DTV stats type</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dtv-fe-stats">DTV stats type</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dtv-property">DTV property type</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dtv-properties">DTV properties type</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#FE_GET_PROPERTY">FE_GET_PROPERTY</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#FE_SET_PROPERTY">FE_SET_PROPERTY</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#idm140469985378192">Property types</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#fe_property_parameters">Digital TV property parameters</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#frontend-stat-properties">Frontend statistics indicators</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#frontend-property-terrestrial-systems">Properties used on terrestrial delivery systems</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#frontend-property-cable-systems">Properties used on cable delivery systems</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#frontend-property-satellital-systems">Properties used on satellital delivery systems</a></span></dt></dl></div><p>This section describes the DVB version 5 extension of the DVB-API, also
called "S2API", as this API were added to provide support for DVB-S2. It was
designed to be able to replace the old frontend API. Yet, the DISEQC and
the capability ioctls weren't implemented yet via the new way.</p><p>The typical usage for the <code class="constant">FE_GET_PROPERTY/FE_SET_PROPERTY</code>
API is to replace the ioctl's were the <a class="link" href="dvb_frontend.html#dvb-frontend-parameters" title="frontend parameters">
struct <code class="constant">dvb_frontend_parameters</code></a> were used.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="dtv-stats"></a>DTV stats type</h3></div></div></div><pre class="programlisting">
struct dtv_stats {
	__u8 scale;	/* enum fecap_scale_params type */
	union {
		__u64 uvalue;	/* for counters and relative scales */
		__s64 svalue;	/* for 1/1000 dB measures */
	};
} __packed;
</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="dtv-fe-stats"></a>DTV stats type</h3></div></div></div><pre class="programlisting">
#define MAX_DTV_STATS   4

struct dtv_fe_stats {
	__u8 len;
	struct dtv_stats stat[MAX_DTV_STATS];
} __packed;
</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="dtv-property"></a>DTV property type</h3></div></div></div><pre class="programlisting">
/* Reserved fields should be set to 0 */

struct dtv_property {
	__u32 cmd;
	__u32 reserved[3];
	union {
		__u32 data;
		struct dtv_fe_stats st;
		struct {
			__u8 data[32];
			__u32 len;
			__u32 reserved1[3];
			void *reserved2;
		} buffer;
	} u;
	int result;
} __attribute__ ((packed));

/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
#define DTV_IOCTL_MAX_MSGS 64
</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="dtv-properties"></a>DTV properties type</h3></div></div></div><pre class="programlisting">
struct dtv_properties {
	__u32 num;
	struct dtv_property *props;
};
</pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="FE_GET_PROPERTY"></a>FE_GET_PROPERTY</h3></div></div></div><p>DESCRIPTION
</p><div class="informaltable"><table border="1"><colgroup><col /></colgroup><tbody><tr><td align="char">
<p>This ioctl call returns one or more frontend properties. This call only
 requires read-only access to the device.</p>
</td></tr></tbody></table></div><p>SYNOPSIS
</p><div class="informaltable"><table border="1"><colgroup><col /></colgroup><tbody><tr><td align="char">
<p>int ioctl(int fd, int request = <a class="link" href="FE_GET_SET_PROPERTY.html#FE_GET_PROPERTY" title="FE_GET_PROPERTY">FE_GET_PROPERTY</a>,
 dtv_properties &#8902;props);</p>
</td></tr></tbody></table></div><p>PARAMETERS
</p><div class="informaltable"><table border="1"><colgroup><col /><col /></colgroup><tbody><tr><td align="char">
<p>int fd</p>
</td><td align="char">
<p>File descriptor returned by a previous call to open().</p>
</td></tr><tr><td align="char">
<p>int num</p>
</td><td align="char">
<p>Equals <a class="link" href="FE_GET_SET_PROPERTY.html#FE_GET_PROPERTY" title="FE_GET_PROPERTY">FE_GET_PROPERTY</a> for this command.</p>
</td></tr><tr><td align="char">
<p>struct dtv_property *props</p>
</td><td align="char">
<p>Points to the location where the front-end property commands are stored.</p>
</td></tr></tbody></table></div><p>RETURN VALUE</p><p>On success <span class="returnvalue">0</span> is returned, on error <span class="returnvalue">-1</span> and the <code class="varname">errno</code> variable is set appropriately. The generic error codes are described at the <a class="link" href="gen_errors.html#gen-errors" title="Table&#160;19.1.&#160;Generic error codes">Generic Error Codes</a> chapter.</p><div class="informaltable"><table border="1"><colgroup><col /><col /></colgroup><tbody><tr><td align="char"><p>EOPNOTSUPP</p></td><td align="char"><p>Property type not supported.</p></td></tr></tbody></table></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="FE_SET_PROPERTY"></a>FE_SET_PROPERTY</h3></div></div></div><p>DESCRIPTION
</p><div class="informaltable"><table border="1"><colgroup><col /></colgroup><tbody><tr><td align="char">
<p>This ioctl call sets one or more frontend properties. This call only
 requires read-only access to the device.</p>
</td></tr></tbody></table></div><p>SYNOPSIS
</p><div class="informaltable"><table border="1"><colgroup><col /></colgroup><tbody><tr><td align="char">
<p>int ioctl(int fd, int request = <a class="link" href="FE_GET_SET_PROPERTY.html#FE_SET_PROPERTY" title="FE_SET_PROPERTY">FE_SET_PROPERTY</a>,
 dtv_properties &#8902;props);</p>
</td></tr></tbody></table></div><p>PARAMETERS
</p><div class="informaltable"><table border="1"><colgroup><col /><col /></colgroup><tbody><tr><td align="char">
<p>int fd</p>
</td><td align="char">
<p>File descriptor returned by a previous call to open().</p>
</td></tr><tr><td align="char">
<p>int num</p>
</td><td align="char">
<p>Equals <a class="link" href="FE_GET_SET_PROPERTY.html#FE_SET_PROPERTY" title="FE_SET_PROPERTY">FE_SET_PROPERTY</a> for this command.</p>
</td></tr><tr><td align="char">
<p>struct dtv_property *props</p>
</td><td align="char">
<p>Points to the location where the front-end property commands are stored.</p>
</td></tr></tbody></table></div><p>RETURN VALUE</p><p>On success <span class="returnvalue">0</span> is returned, on error <span class="returnvalue">-1</span> and the <code class="varname">errno</code> variable is set appropriately. The generic error codes are described at the <a class="link" href="gen_errors.html#gen-errors" title="Table&#160;19.1.&#160;Generic error codes">Generic Error Codes</a> chapter.</p><div class="informaltable"><table border="1"><colgroup><col /><col /></colgroup><tbody><tr><td align="char"><p>EOPNOTSUPP</p></td><td align="char"><p>Property type not supported.</p></td></tr></tbody></table></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="idm140469985378192"></a>Property types</h3></div></div></div><p>
On <a class="link" href="FE_GET_SET_PROPERTY.html#FE_GET_PROPERTY" title="FE_GET_PROPERTY">FE_GET_PROPERTY</a>/<a class="link" href="FE_GET_SET_PROPERTY.html#FE_SET_PROPERTY" title="FE_SET_PROPERTY">FE_SET_PROPERTY</a>,
the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to
get/set up to 64 properties. The actual meaning of each property is described on the next sections.
</p><p>The available frontend property types are shown on the next section.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fe_property_parameters"></a>Digital TV property parameters</h3></div></div></div><div class="toc"><dl class="toc"><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-UNDEFINED"><code class="constant">DTV_UNDEFINED</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-TUNE"><code class="constant">DTV_TUNE</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-CLEAR"><code class="constant">DTV_CLEAR</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-MODULATION"><code class="constant">DTV_MODULATION</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-BANDWIDTH-HZ"><code class="constant">DTV_BANDWIDTH_HZ</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-INVERSION"><code class="constant">DTV_INVERSION</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-DISEQC-MASTER"><code class="constant">DTV_DISEQC_MASTER</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-SYMBOL-RATE"><code class="constant">DTV_SYMBOL_RATE</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-INNER-FEC"><code class="constant">DTV_INNER_FEC</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-VOLTAGE"><code class="constant">DTV_VOLTAGE</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-TONE"><code class="constant">DTV_TONE</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-PILOT"><code class="constant">DTV_PILOT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-ROLLOFF"><code class="constant">DTV_ROLLOFF</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-DISEQC-SLAVE-REPLY"><code class="constant">DTV_DISEQC_SLAVE_REPLY</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-FE-CAPABILITY-COUNT"><code class="constant">DTV_FE_CAPABILITY_COUNT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-FE-CAPABILITY"><code class="constant">DTV_FE_CAPABILITY</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-PARTIAL-RECEPTION"><code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SOUND-BROADCASTING"><code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SB-SUBCHANNEL-ID"><code class="constant">DTV_ISDBT_SB_SUBCHANNEL_ID</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SB-SEGMENT-IDX"><code class="constant">DTV_ISDBT_SB_SEGMENT_IDX</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SB-SEGMENT-COUNT"><code class="constant">DTV_ISDBT_SB_SEGMENT_COUNT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#isdb-hierq-layers"><code class="constant">DTV-ISDBT-LAYER*</code> parameters</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION"><code class="constant">DTV_API_VERSION</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-CODE-RATE-HP"><code class="constant">DTV_CODE_RATE_HP</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-CODE-RATE-LP"><code class="constant">DTV_CODE_RATE_LP</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-GUARD-INTERVAL"><code class="constant">DTV_GUARD_INTERVAL</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-TRANSMISSION-MODE"><code class="constant">DTV_TRANSMISSION_MODE</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-HIERARCHY"><code class="constant">DTV_HIERARCHY</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STREAM-ID"><code class="constant">DTV_STREAM_ID</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-DVBT2-PLP-ID-LEGACY"><code class="constant">DTV_DVBT2_PLP_ID_LEGACY</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-ENUM-DELSYS"><code class="constant">DTV_ENUM_DELSYS</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-INTERLEAVING"><code class="constant">DTV_INTERLEAVING</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-LNA"><code class="constant">DTV_LNA</code></a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-UNDEFINED"></a><code class="constant">DTV_UNDEFINED</code></h4></div></div></div><p>Used internally. A GET/SET operation for it won't change or return anything.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-TUNE"></a><code class="constant">DTV_TUNE</code></h4></div></div></div><p>Interpret the cache of data, build either a traditional frontend tunerequest so we can pass validation in the <code class="constant">FE_SET_FRONTEND</code> ioctl.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-CLEAR"></a><code class="constant">DTV_CLEAR</code></h4></div></div></div><p>Reset a cache of data specific to the frontend here. This does not effect hardware.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-FREQUENCY"></a><code class="constant">DTV_FREQUENCY</code></h4></div></div></div><p>Central frequency of the channel.</p><p>Notes:</p><p>1)For satellital delivery systems, it is measured in kHz.
			For the other ones, it is measured in Hz.</p><p>2)For ISDB-T, the channels are usually transmitted with an offset of 143kHz.
			E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
			the channel which is 6MHz.</p><p>3)As in ISDB-Tsb the channel consists of only one or three segments the
			frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
			central frequency of the channel is expected.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-MODULATION"></a><code class="constant">DTV_MODULATION</code></h4></div></div></div><p>Specifies the frontend modulation type for cable and satellite types. The modulation can be one of the types bellow:</p><pre class="programlisting">
 typedef enum fe_modulation {
	QPSK,
	QAM_16,
	QAM_32,
	QAM_64,
	QAM_128,
	QAM_256,
	QAM_AUTO,
	VSB_8,
	VSB_16,
	PSK_8,
	APSK_16,
	APSK_32,
	DQPSK,
	QAM_4_NR,
 } fe_modulation_t;
</pre></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-BANDWIDTH-HZ"></a><code class="constant">DTV_BANDWIDTH_HZ</code></h4></div></div></div><p>Bandwidth for the channel, in HZ.</p><p>Possible values:
			<code class="constant">1712000</code>,
			<code class="constant">5000000</code>,
			<code class="constant">6000000</code>,
			<code class="constant">7000000</code>,
			<code class="constant">8000000</code>,
			<code class="constant">10000000</code>.
		</p><p>Notes:</p><p>1) For ISDB-T it should be always 6000000Hz (6MHz)</p><p>2) For ISDB-Tsb it can vary depending on the number of connected segments</p><p>3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth
			 for DVB-C depends on the symbol rate</p><p>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from
			other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
			DTV_ISDBT_SB_SEGMENT_COUNT).</p><p>5) DVB-T supports 6, 7 and 8MHz.</p><p>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-INVERSION"></a><code class="constant">DTV_INVERSION</code></h4></div></div></div><p>The Inversion field can take one of these values:
	</p><pre class="programlisting">
	typedef enum fe_spectral_inversion {
		INVERSION_OFF,
		INVERSION_ON,
		INVERSION_AUTO
	} fe_spectral_inversion_t;
	</pre><p>It indicates if spectral inversion should be presumed or not. In the automatic setting
	(<code class="constant">INVERSION_AUTO</code>) the hardware will try to figure out the correct setting by
	itself.
	</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-DISEQC-MASTER"></a><code class="constant">DTV_DISEQC_MASTER</code></h4></div></div></div><p>Currently not implemented.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-SYMBOL-RATE"></a><code class="constant">DTV_SYMBOL_RATE</code></h4></div></div></div><p>Digital TV symbol rate, in bauds (symbols/second). Used on cable standards.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-INNER-FEC"></a><code class="constant">DTV_INNER_FEC</code></h4></div></div></div><p>Used cable/satellite transmissions. The acceptable values are:
	</p><pre class="programlisting">
typedef enum fe_code_rate {
	FEC_NONE = 0,
	FEC_1_2,
	FEC_2_3,
	FEC_3_4,
	FEC_4_5,
	FEC_5_6,
	FEC_6_7,
	FEC_7_8,
	FEC_8_9,
	FEC_AUTO,
	FEC_3_5,
	FEC_9_10,
	FEC_2_5,
} fe_code_rate_t;
	</pre><p>which correspond to error correction rates of 1/2, 2/3, etc.,
	no error correction or auto detection.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-VOLTAGE"></a><code class="constant">DTV_VOLTAGE</code></h4></div></div></div><p>The voltage is usually used with non-DiSEqC capable LNBs to switch
	the polarzation (horizontal/vertical). When using DiSEqC epuipment this
	voltage has to be switched consistently to the DiSEqC commands as
	described in the DiSEqC spec.</p><pre class="programlisting">
		typedef enum fe_sec_voltage {
		SEC_VOLTAGE_13,
		SEC_VOLTAGE_18
		} fe_sec_voltage_t;
	</pre></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-TONE"></a><code class="constant">DTV_TONE</code></h4></div></div></div><p>Currently not used.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-PILOT"></a><code class="constant">DTV_PILOT</code></h4></div></div></div><p>Sets DVB-S2 pilot</p><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="fe-pilot-t"></a>fe_pilot type</h5></div></div></div><pre class="programlisting">
typedef enum fe_pilot {
	PILOT_ON,
	PILOT_OFF,
	PILOT_AUTO,
} fe_pilot_t;
		</pre></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-ROLLOFF"></a><code class="constant">DTV_ROLLOFF</code></h4></div></div></div><p>Sets DVB-S2 rolloff</p><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="fe-rolloff-t"></a>fe_rolloff type</h5></div></div></div><pre class="programlisting">
typedef enum fe_rolloff {
	ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
	ROLLOFF_20,
	ROLLOFF_25,
	ROLLOFF_AUTO,
} fe_rolloff_t;
		</pre></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-DISEQC-SLAVE-REPLY"></a><code class="constant">DTV_DISEQC_SLAVE_REPLY</code></h4></div></div></div><p>Currently not implemented.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-FE-CAPABILITY-COUNT"></a><code class="constant">DTV_FE_CAPABILITY_COUNT</code></h4></div></div></div><p>Currently not implemented.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-FE-CAPABILITY"></a><code class="constant">DTV_FE_CAPABILITY</code></h4></div></div></div><p>Currently not implemented.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-DELIVERY-SYSTEM"></a><code class="constant">DTV_DELIVERY_SYSTEM</code></h4></div></div></div><p>Specifies the type of Delivery system</p><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="fe-delivery-system-t"></a>fe_delivery_system type</h5></div></div></div><p>Possible values: </p><pre class="programlisting">

typedef enum fe_delivery_system {
	SYS_UNDEFINED,
	SYS_DVBC_ANNEX_A,
	SYS_DVBC_ANNEX_B,
	SYS_DVBT,
	SYS_DSS,
	SYS_DVBS,
	SYS_DVBS2,
	SYS_DVBH,
	SYS_ISDBT,
	SYS_ISDBS,
	SYS_ISDBC,
	SYS_ATSC,
	SYS_ATSCMH,
	SYS_DTMB,
	SYS_CMMB,
	SYS_DAB,
	SYS_DVBT2,
	SYS_TURBO,
	SYS_DVBC_ANNEX_C,
} fe_delivery_system_t;
</pre></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-ISDBT-PARTIAL-RECEPTION"></a><code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code></h4></div></div></div><p>If <code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code> is '0' this bit-field represents whether
			the channel is in partial reception mode or not.</p><p>If '1' <code class="constant">DTV_ISDBT_LAYERA_*</code> values are assigned to the center segment and
			<code class="constant">DTV_ISDBT_LAYERA_SEGMENT_COUNT</code> has to be '1'.</p><p>If in addition <code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code> is '1'
			<code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code> represents whether this ISDB-Tsb channel
			is consisting of one segment and layer or three segments and two layers.</p><p>Possible values: 0, 1, -1 (AUTO)</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-ISDBT-SOUND-BROADCASTING"></a><code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code></h4></div></div></div><p>This field represents whether the other DTV_ISDBT_*-parameters are
			referring to an ISDB-T and an ISDB-Tsb channel. (See also
			<code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code>).</p><p>Possible values: 0, 1, -1 (AUTO)</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-ISDBT-SB-SUBCHANNEL-ID"></a><code class="constant">DTV_ISDBT_SB_SUBCHANNEL_ID</code></h4></div></div></div><p>This field only applies if <code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code> is '1'.</p><p>(Note of the author: This might not be the correct description of the
			<code class="constant">SUBCHANNEL-ID</code> in all details, but it is my understanding of the technical
			background needed to program a device)</p><p>An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a
			set of connected ISDB-Tsb channels. In this set of channels every
			channel can be received independently. The number of connected
			ISDB-Tsb segment can vary, e.g. depending on the frequency spectrum
			bandwidth available.</p><p>Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The
			broadcaster has several possibilities to put those channels in the
			air: Assuming a normal 13-segment ISDB-T spectrum he can align the 8
			segments from position 1-8 to 5-13 or anything in between.</p><p>The underlying layer of segments are subchannels: each segment is
			consisting of several subchannels with a predefined IDs. A sub-channel
			is used to help the demodulator to synchronize on the channel.</p><p>An ISDB-T channel is always centered over all sub-channels. As for
			the example above, in ISDB-Tsb it is no longer as simple as that.</p><p><code class="constant">The DTV_ISDBT_SB_SUBCHANNEL_ID</code> parameter is used to give the
			sub-channel ID of the segment to be demodulated.</p><p>Possible values: 0 .. 41, -1 (AUTO)</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-ISDBT-SB-SEGMENT-IDX"></a><code class="constant">DTV_ISDBT_SB_SEGMENT_IDX</code></h4></div></div></div><p>This field only applies if <code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code> is '1'.</p><p><code class="constant">DTV_ISDBT_SB_SEGMENT_IDX</code> gives the index of the segment to be
			demodulated for an ISDB-Tsb channel where several of them are
			transmitted in the connected manner.</p><p>Possible values: 0 .. <code class="constant">DTV_ISDBT_SB_SEGMENT_COUNT</code> - 1</p><p>Note: This value cannot be determined by an automatic channel search.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-ISDBT-SB-SEGMENT-COUNT"></a><code class="constant">DTV_ISDBT_SB_SEGMENT_COUNT</code></h4></div></div></div><p>This field only applies if <code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code> is '1'.</p><p><code class="constant">DTV_ISDBT_SB_SEGMENT_COUNT</code> gives the total count of connected ISDB-Tsb
			channels.</p><p>Possible values: 1 .. 13</p><p>Note: This value cannot be determined by an automatic channel search.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="isdb-hierq-layers"></a><code class="constant">DTV-ISDBT-LAYER*</code> parameters</h4></div></div></div><p>ISDB-T channels can be coded hierarchically. As opposed to DVB-T in
			ISDB-T hierarchical layers can be decoded simultaneously. For that
			reason a ISDB-T demodulator has 3 Viterbi and 3 Reed-Solomon decoders.</p><p>ISDB-T has 3 hierarchical layers which each can use a part of the
			available segments. The total number of segments over all layers has
			to 13 in ISDB-T.</p><p>There are 3 parameter sets, for Layers A, B and C.</p><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ISDBT-LAYER-ENABLED"></a><code class="constant">DTV_ISDBT_LAYER_ENABLED</code></h5></div></div></div><p>Hierarchical reception in ISDB-T is achieved by enabling or disabling
				layers in the decoding process. Setting all bits of
				<code class="constant">DTV_ISDBT_LAYER_ENABLED</code> to '1' forces all layers (if applicable) to be
				demodulated. This is the default.</p><p>If the channel is in the partial reception mode
				(<code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code> = 1) the central segment can be decoded
				independently of the other 12 segments. In that mode layer A has to
				have a <code class="constant">SEGMENT_COUNT</code> of 1.</p><p>In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb
				according to <code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code>. <code class="constant">SEGMENT_COUNT</code> must be filled
				accordingly.</p><p>Possible values: 0x1, 0x2, 0x4 (|-able)</p><p><code class="constant">DTV_ISDBT_LAYER_ENABLED[0:0]</code> - layer A</p><p><code class="constant">DTV_ISDBT_LAYER_ENABLED[1:1]</code> - layer B</p><p><code class="constant">DTV_ISDBT_LAYER_ENABLED[2:2]</code> - layer C</p><p><code class="constant">DTV_ISDBT_LAYER_ENABLED[31:3]</code> unused</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ISDBT-LAYER-FEC"></a><code class="constant">DTV_ISDBT_LAYER*_FEC</code></h5></div></div></div><p>Possible values: <code class="constant">FEC_AUTO</code>, <code class="constant">FEC_1_2</code>, <code class="constant">FEC_2_3</code>, <code class="constant">FEC_3_4</code>, <code class="constant">FEC_5_6</code>, <code class="constant">FEC_7_8</code></p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ISDBT-LAYER-MODULATION"></a><code class="constant">DTV_ISDBT_LAYER*_MODULATION</code></h5></div></div></div><p>Possible values: <code class="constant">QAM_AUTO</code>, QP<code class="constant">SK, QAM_16</code>, <code class="constant">QAM_64</code>, <code class="constant">DQPSK</code></p><p>Note: If layer C is <code class="constant">DQPSK</code> layer B has to be <code class="constant">DQPSK</code>. If layer B is <code class="constant">DQPSK</code>
				and <code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code>=0 layer has to be <code class="constant">DQPSK</code>.</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ISDBT-LAYER-SEGMENT-COUNT"></a><code class="constant">DTV_ISDBT_LAYER*_SEGMENT_COUNT</code></h5></div></div></div><p>Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)</p><p>Note: Truth table for <code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code> and
				<code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code> and <code class="constant">LAYER</code>*_SEGMENT_COUNT</p><div class="informaltable"><a id="isdbt-layer_seg-cnt-table"></a><table border="1"><colgroup><col /><col /><col /><col /><col /><col /></colgroup><tbody><tr><td>PR</td><td>SB</td><td>Layer A width</td><td>Layer B width</td><td>Layer C width</td><td>total width</td></tr><tr><td>0</td><td>0</td><td>1 .. 13</td><td>1 .. 13</td><td>1 .. 13</td><td>13</td></tr><tr><td>1</td><td>0</td><td>1</td><td>1 .. 13</td><td>1 .. 13</td><td>13</td></tr><tr><td>0</td><td>1</td><td>1</td><td>0</td><td>0</td><td>1</td></tr><tr><td>1</td><td>1</td><td>1</td><td>2</td><td>0</td><td>13</td></tr></tbody></table></div></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ISDBT-LAYER-TIME-INTERLEAVING"></a><code class="constant">DTV_ISDBT_LAYER*_TIME_INTERLEAVING</code></h5></div></div></div><p>Possible values: 0, 1, 2, 3, -1 (AUTO)</p><p>Note: The real inter-leaver depth-names depend on the mode (fft-size); the values
				here are referring to what can be found in the TMCC-structure -
				independent of the mode.</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-FIC-VER"></a><code class="constant">DTV_ATSCMH_FIC_VER</code></h5></div></div></div><p>Version number of the FIC (Fast Information Channel) signaling data.</p><p>FIC is used for relaying information to allow rapid service acquisition by the receiver.</p><p>Possible values: 0, 1, 2, 3, ..., 30, 31</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-PARADE-ID"></a><code class="constant">DTV_ATSCMH_PARADE_ID</code></h5></div></div></div><p>Parade identification number</p><p>A parade is a collection of up to eight MH groups, conveying one or two ensembles.</p><p>Possible values: 0, 1, 2, 3, ..., 126, 127</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-NOG"></a><code class="constant">DTV_ATSCMH_NOG</code></h5></div></div></div><p>Number of MH groups per MH subframe for a designated parade.</p><p>Possible values: 1, 2, 3, 4, 5, 6, 7, 8</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-TNOG"></a><code class="constant">DTV_ATSCMH_TNOG</code></h5></div></div></div><p>Total number of MH groups including all MH groups belonging to all MH parades in one MH subframe.</p><p>Possible values: 0, 1, 2, 3, ..., 30, 31</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-SGN"></a><code class="constant">DTV_ATSCMH_SGN</code></h5></div></div></div><p>Start group number.</p><p>Possible values: 0, 1, 2, 3, ..., 14, 15</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-PRC"></a><code class="constant">DTV_ATSCMH_PRC</code></h5></div></div></div><p>Parade repetition cycle.</p><p>Possible values: 1, 2, 3, 4, 5, 6, 7, 8</p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-RS-FRAME-MODE"></a><code class="constant">DTV_ATSCMH_RS_FRAME_MODE</code></h5></div></div></div><p>RS frame mode.</p><p>Possible values are:</p><p><a id="atscmh-rs-frame-mode"></a>
</p><pre class="programlisting">
typedef enum atscmh_rs_frame_mode {
	ATSCMH_RSFRAME_PRI_ONLY  = 0,
	ATSCMH_RSFRAME_PRI_SEC   = 1,
} atscmh_rs_frame_mode_t;
</pre><p>
		  </p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-RS-FRAME-ENSEMBLE"></a><code class="constant">DTV_ATSCMH_RS_FRAME_ENSEMBLE</code></h5></div></div></div><p>RS frame ensemble.</p><p>Possible values are:</p><p><a id="atscmh-rs-frame-ensemble"></a>
</p><pre class="programlisting">
typedef enum atscmh_rs_frame_ensemble {
	ATSCMH_RSFRAME_ENS_PRI   = 0,
	ATSCMH_RSFRAME_ENS_SEC   = 1,
} atscmh_rs_frame_ensemble_t;
</pre><p>
		  </p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-RS-CODE-MODE-PRI"></a><code class="constant">DTV_ATSCMH_RS_CODE_MODE_PRI</code></h5></div></div></div><p>RS code mode (primary).</p><p>Possible values are:</p><p><a id="atscmh-rs-code-mode"></a>
</p><pre class="programlisting">
typedef enum atscmh_rs_code_mode {
	ATSCMH_RSCODE_211_187    = 0,
	ATSCMH_RSCODE_223_187    = 1,
	ATSCMH_RSCODE_235_187    = 2,
} atscmh_rs_code_mode_t;
</pre><p>
		  </p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-RS-CODE-MODE-SEC"></a><code class="constant">DTV_ATSCMH_RS_CODE_MODE_SEC</code></h5></div></div></div><p>RS code mode (secondary).</p><p>Possible values are:</p><pre class="programlisting">
typedef enum atscmh_rs_code_mode {
	ATSCMH_RSCODE_211_187    = 0,
	ATSCMH_RSCODE_223_187    = 1,
	ATSCMH_RSCODE_235_187    = 2,
} atscmh_rs_code_mode_t;
</pre></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-SCCC-BLOCK-MODE"></a><code class="constant">DTV_ATSCMH_SCCC_BLOCK_MODE</code></h5></div></div></div><p>Series Concatenated Convolutional Code Block Mode.</p><p>Possible values are:</p><p><a id="atscmh-sccc-block-mode"></a>
</p><pre class="programlisting">
typedef enum atscmh_sccc_block_mode {
	ATSCMH_SCCC_BLK_SEP      = 0,
	ATSCMH_SCCC_BLK_COMB     = 1,
} atscmh_sccc_block_mode_t;
</pre><p>
		  </p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-SCCC-CODE-MODE-A"></a><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_A</code></h5></div></div></div><p>Series Concatenated Convolutional Code Rate.</p><p>Possible values are:</p><p><a id="atscmh-sccc-code-mode"></a>
</p><pre class="programlisting">
typedef enum atscmh_sccc_code_mode {
	ATSCMH_SCCC_CODE_HLF     = 0,
	ATSCMH_SCCC_CODE_QTR     = 1,
} atscmh_sccc_code_mode_t;
</pre><p>
		  </p></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-SCCC-CODE-MODE-B"></a><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_B</code></h5></div></div></div><p>Series Concatenated Convolutional Code Rate.</p><p>Possible values are:</p><pre class="programlisting">
typedef enum atscmh_sccc_code_mode {
	ATSCMH_SCCC_CODE_HLF     = 0,
	ATSCMH_SCCC_CODE_QTR     = 1,
} atscmh_sccc_code_mode_t;
</pre></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-SCCC-CODE-MODE-C"></a><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_C</code></h5></div></div></div><p>Series Concatenated Convolutional Code Rate.</p><p>Possible values are:</p><pre class="programlisting">
typedef enum atscmh_sccc_code_mode {
	ATSCMH_SCCC_CODE_HLF     = 0,
	ATSCMH_SCCC_CODE_QTR     = 1,
} atscmh_sccc_code_mode_t;
</pre></div><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="DTV-ATSCMH-SCCC-CODE-MODE-D"></a><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_D</code></h5></div></div></div><p>Series Concatenated Convolutional Code Rate.</p><p>Possible values are:</p><pre class="programlisting">
typedef enum atscmh_sccc_code_mode {
	ATSCMH_SCCC_CODE_HLF     = 0,
	ATSCMH_SCCC_CODE_QTR     = 1,
} atscmh_sccc_code_mode_t;
</pre></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-API-VERSION"></a><code class="constant">DTV_API_VERSION</code></h4></div></div></div><p>Returns the major/minor version of the DVB API</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-CODE-RATE-HP"></a><code class="constant">DTV_CODE_RATE_HP</code></h4></div></div></div><p>Used on terrestrial transmissions. The acceptable values are:
	</p><pre class="programlisting">
typedef enum fe_code_rate {
	FEC_NONE = 0,
	FEC_1_2,
	FEC_2_3,
	FEC_3_4,
	FEC_4_5,
	FEC_5_6,
	FEC_6_7,
	FEC_7_8,
	FEC_8_9,
	FEC_AUTO,
	FEC_3_5,
	FEC_9_10,
} fe_code_rate_t;
	</pre></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-CODE-RATE-LP"></a><code class="constant">DTV_CODE_RATE_LP</code></h4></div></div></div><p>Used on terrestrial transmissions. The acceptable values are:
	</p><pre class="programlisting">
typedef enum fe_code_rate {
	FEC_NONE = 0,
	FEC_1_2,
	FEC_2_3,
	FEC_3_4,
	FEC_4_5,
	FEC_5_6,
	FEC_6_7,
	FEC_7_8,
	FEC_8_9,
	FEC_AUTO,
	FEC_3_5,
	FEC_9_10,
} fe_code_rate_t;
	</pre></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-GUARD-INTERVAL"></a><code class="constant">DTV_GUARD_INTERVAL</code></h4></div></div></div><p>Possible values are:</p><pre class="programlisting">
typedef enum fe_guard_interval {
	GUARD_INTERVAL_1_32,
	GUARD_INTERVAL_1_16,
	GUARD_INTERVAL_1_8,
	GUARD_INTERVAL_1_4,
	GUARD_INTERVAL_AUTO,
	GUARD_INTERVAL_1_128,
	GUARD_INTERVAL_19_128,
	GUARD_INTERVAL_19_256,
	GUARD_INTERVAL_PN420,
	GUARD_INTERVAL_PN595,
	GUARD_INTERVAL_PN945,
} fe_guard_interval_t;
</pre><p>Notes:</p><p>1) If <code class="constant">DTV_GUARD_INTERVAL</code> is set the <code class="constant">GUARD_INTERVAL_AUTO</code> the hardware will
			try to find the correct guard interval (if capable) and will use TMCC to fill
			in the missing parameters.</p><p>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</p><p>3) DTMB specifies PN420, PN595 and PN945.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-TRANSMISSION-MODE"></a><code class="constant">DTV_TRANSMISSION_MODE</code></h4></div></div></div><p>Specifies the number of carriers used by the standard</p><p>Possible values are:</p><pre class="programlisting">
typedef enum fe_transmit_mode {
	TRANSMISSION_MODE_2K,
	TRANSMISSION_MODE_8K,
	TRANSMISSION_MODE_AUTO,
	TRANSMISSION_MODE_4K,
	TRANSMISSION_MODE_1K,
	TRANSMISSION_MODE_16K,
	TRANSMISSION_MODE_32K,
	TRANSMISSION_MODE_C1,
	TRANSMISSION_MODE_C3780,
} fe_transmit_mode_t;
</pre><p>Notes:</p><p>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
			'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</p><p>2) If <code class="constant">DTV_TRANSMISSION_MODE</code> is set the <code class="constant">TRANSMISSION_MODE_AUTO</code> the
			hardware will try to find the correct FFT-size (if capable) and will
			use TMCC to fill in the missing parameters.</p><p>3) DVB-T specifies 2K and 8K as valid sizes.</p><p>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</p><p>5) DTMB specifies C1 and C3780.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-HIERARCHY"></a><code class="constant">DTV_HIERARCHY</code></h4></div></div></div><p>Frontend hierarchy</p><pre class="programlisting">
typedef enum fe_hierarchy {
	 HIERARCHY_NONE,
	 HIERARCHY_1,
	 HIERARCHY_2,
	 HIERARCHY_4,
	 HIERARCHY_AUTO
 } fe_hierarchy_t;
	</pre></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STREAM-ID"></a><code class="constant">DTV_STREAM_ID</code></h4></div></div></div><p>DVB-S2, DVB-T2 and ISDB-S support the transmission of several
	      streams on a single transport stream.
	      This property enables the DVB driver to handle substream filtering,
	      when supported by the hardware.
	      By default, substream filtering is disabled.
	</p><p>
	      For DVB-S2 and DVB-T2, the valid substream id range is from 0 to 255.
	</p><p>
	      For ISDB, the valid substream id range is from 1 to 65535.
	</p><p>
	      To disable it, you should use the special macro NO_STREAM_ID_FILTER.
	</p><p>
	      Note: any value outside the id range also disables filtering.
	</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-DVBT2-PLP-ID-LEGACY"></a><code class="constant">DTV_DVBT2_PLP_ID_LEGACY</code></h4></div></div></div><p>Obsolete, replaced with DTV_STREAM_ID.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-ENUM-DELSYS"></a><code class="constant">DTV_ENUM_DELSYS</code></h4></div></div></div><p>A Multi standard frontend needs to advertise the delivery systems provided.
			Applications need to enumerate the provided delivery systems, before using
			any other operation with the frontend. Prior to it's introduction,
			FE_GET_INFO was used to determine a frontend type. A frontend which
			provides more than a single delivery system, FE_GET_INFO doesn't help much.
			Applications which intends to use a multistandard frontend must enumerate
			the delivery systems associated with it, rather than trying to use
			FE_GET_INFO. In the case of a legacy frontend, the result is just the same
			as with FE_GET_INFO, but in a more structured format </p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-INTERLEAVING"></a><code class="constant">DTV_INTERLEAVING</code></h4></div></div></div><p><a id="fe-interleaving"></a>Interleaving mode</p><pre class="programlisting">
enum fe_interleaving {
	INTERLEAVING_NONE,
	INTERLEAVING_AUTO,
	INTERLEAVING_240,
	INTERLEAVING_720,
};
	</pre></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-LNA"></a><code class="constant">DTV_LNA</code></h4></div></div></div><p>Low-noise amplifier.</p><p>Hardware might offer controllable LNA which can be set manually
		using that parameter. Usually LNA could be found only from
		terrestrial devices if at all.</p><p>Possible values: 0, 1, LNA_AUTO</p><p>0, LNA off</p><p>1, LNA on</p><p>use the special macro LNA_AUTO to set LNA auto</p></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="frontend-stat-properties"></a>Frontend statistics indicators</h3></div></div></div><div class="toc"><dl class="toc"><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-SIGNAL-STRENGTH"><code class="constant">DTV_STAT_SIGNAL_STRENGTH</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-CNR"><code class="constant">DTV_STAT_CNR</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-PRE-ERROR-BIT-COUNT"><code class="constant">DTV_STAT_PRE_ERROR_BIT_COUNT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-PRE-TOTAL-BIT-COUNT"><code class="constant">DTV_STAT_PRE_TOTAL_BIT_COUNT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-POST-ERROR-BIT-COUNT"><code class="constant">DTV_STAT_POST_ERROR_BIT_COUNT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-POST-TOTAL-BIT-COUNT"><code class="constant">DTV_STAT_POST_TOTAL_BIT_COUNT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-ERROR-BLOCK-COUNT"><code class="constant">DTV_STAT_ERROR_BLOCK_COUNT</code></a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#DTV-STAT-TOTAL-BLOCK-COUNT"><code class="constant">DTV-STAT_TOTAL_BLOCK_COUNT</code></a></span></dt></dl></div><p>The values are returned via <code class="constant">dtv_property.stat</code>.
	      If the property is supported, <code class="constant">dtv_property.stat.len</code> is bigger than zero.</p><p>For most delivery systems, <code class="constant">dtv_property.stat.len</code>
	      will be 1 if the stats is supported, and the properties will
	      return a single value for each parameter.</p><p>It should be noticed, however, that new OFDM delivery systems
	      like ISDB can use different modulation types for each group of
	      carriers. On such standards, up to 3 groups of statistics can be
	      provided, and <code class="constant">dtv_property.stat.len</code> is updated
	      to reflect the "global" metrics, plus one metric per each carrier
	      group (called "layer" on ISDB).</p><p>So, in order to be consistent with other delivery systems, the first
	      value at <a class="link" href="FE_GET_SET_PROPERTY.html#dtv-stats" title="DTV stats type"><code class="constant">dtv_property.stat.dtv_stats</code></a>
	      array refers to the global metric. The other elements of the array
	      represent each layer, starting from layer A(index 1),
	      layer B (index 2) and so on.</p><p>The number of filled elements are stored at <code class="constant">dtv_property.stat.len</code>.</p><p>Each element of the <code class="constant">dtv_property.stat.dtv_stats</code> array consists on two elements:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><code class="constant">svalue</code> or <code class="constant">uvalue</code>, where
			<code class="constant">svalue</code> is for signed values of the measure (dB measures)
			and <code class="constant">uvalue</code> is for unsigned values (counters, relative scale)</p></li><li class="listitem" style="list-style-type: circle"><p><code class="constant">scale</code> - Scale for the value. It can be:</p><div class="itemizedlist"><a id="fecap-scale-params"></a><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - The parameter is supported by the frontend, but it was not possible to collect it (could be a transitory or permanent condition)</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_DECIBEL</code> - parameter is a signed value, measured in 1/1000 dB</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_RELATIVE</code> - parameter is a unsigned value, where 0 means 0% and 65535 means 100%.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_COUNTER</code> - parameter is a unsigned value that counts the occurrence of an event, like bit error, block error, or lapsed time.</p></li></ul></div></li></ul></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-SIGNAL-STRENGTH"></a><code class="constant">DTV_STAT_SIGNAL_STRENGTH</code></h4></div></div></div><p>Indicates the signal strength level at the analog part of the tuner or of the demod.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_DECIBEL</code> - signal strength is in 0.0001 dBm units, power measured in miliwatts. This value is generally negative.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_RELATIVE</code> - The frontend provides a 0% to 100% measurement for power (actually, 0 to 65535).</p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-CNR"></a><code class="constant">DTV_STAT_CNR</code></h4></div></div></div><p>Indicates the Signal to Noise ratio for the main carrier.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_DECIBEL</code> - Signal/Noise ratio is in 0.0001 dB units.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_RELATIVE</code> - The frontend provides a 0% to 100% measurement for Signal/Noise (actually, 0 to 65535).</p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-PRE-ERROR-BIT-COUNT"></a><code class="constant">DTV_STAT_PRE_ERROR_BIT_COUNT</code></h4></div></div></div><p>Measures the number of bit errors before the forward error correction (FEC) on the inner coding block (before Viterbi, LDPC or other inner code).</p><p>This measure is taken during the same interval as <code class="constant">DTV_STAT_PRE_TOTAL_BIT_COUNT</code>.</p><p>In order to get the BER (Bit Error Rate) measurement, it should be divided by
		<a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-PRE-TOTAL-BIT-COUNT" title="DTV_STAT_PRE_TOTAL_BIT_COUNT"><code class="constant">DTV_STAT_PRE_TOTAL_BIT_COUNT</code></a>.</p><p>This measurement is monotonically increased, as the frontend gets more bit count measurements.
		      The frontend may reset it when a channel/transponder is tuned.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_COUNTER</code> - Number of error bits counted before the inner coding.</p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-PRE-TOTAL-BIT-COUNT"></a><code class="constant">DTV_STAT_PRE_TOTAL_BIT_COUNT</code></h4></div></div></div><p>Measures the amount of bits received before the inner code block, during the same period as
		<a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-PRE-ERROR-BIT-COUNT" title="DTV_STAT_PRE_ERROR_BIT_COUNT"><code class="constant">DTV_STAT_PRE_ERROR_BIT_COUNT</code></a> measurement was taken.</p><p>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream,
		      as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</p><p>This measurement is monotonically increased, as the frontend gets more bit count measurements.
		      The frontend may reset it when a channel/transponder is tuned.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_COUNTER</code> - Number of bits counted while measuring
				 <a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-PRE-ERROR-BIT-COUNT" title="DTV_STAT_PRE_ERROR_BIT_COUNT"><code class="constant">DTV_STAT_PRE_ERROR_BIT_COUNT</code></a>.</p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-POST-ERROR-BIT-COUNT"></a><code class="constant">DTV_STAT_POST_ERROR_BIT_COUNT</code></h4></div></div></div><p>Measures the number of bit errors after the forward error correction (FEC) done by inner code block (after Viterbi, LDPC or other inner code).</p><p>This measure is taken during the same interval as <code class="constant">DTV_STAT_POST_TOTAL_BIT_COUNT</code>.</p><p>In order to get the BER (Bit Error Rate) measurement, it should be divided by
		<a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-POST-TOTAL-BIT-COUNT" title="DTV_STAT_POST_TOTAL_BIT_COUNT"><code class="constant">DTV_STAT_POST_TOTAL_BIT_COUNT</code></a>.</p><p>This measurement is monotonically increased, as the frontend gets more bit count measurements.
		      The frontend may reset it when a channel/transponder is tuned.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_COUNTER</code> - Number of error bits counted after the inner coding.</p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-POST-TOTAL-BIT-COUNT"></a><code class="constant">DTV_STAT_POST_TOTAL_BIT_COUNT</code></h4></div></div></div><p>Measures the amount of bits received after the inner coding, during the same period as
		<a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-POST-ERROR-BIT-COUNT" title="DTV_STAT_POST_ERROR_BIT_COUNT"><code class="constant">DTV_STAT_POST_ERROR_BIT_COUNT</code></a> measurement was taken.</p><p>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream,
		      as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</p><p>This measurement is monotonically increased, as the frontend gets more bit count measurements.
		      The frontend may reset it when a channel/transponder is tuned.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_COUNTER</code> - Number of bits counted while measuring
				 <a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-POST-ERROR-BIT-COUNT" title="DTV_STAT_POST_ERROR_BIT_COUNT"><code class="constant">DTV_STAT_POST_ERROR_BIT_COUNT</code></a>.</p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-ERROR-BLOCK-COUNT"></a><code class="constant">DTV_STAT_ERROR_BLOCK_COUNT</code></h4></div></div></div><p>Measures the number of block errors after the outer forward error correction coding (after Reed-Solomon or other outer code).</p><p>This measurement is monotonically increased, as the frontend gets more bit count measurements.
		      The frontend may reset it when a channel/transponder is tuned.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_COUNTER</code> - Number of error blocks counted after the outer coding.</p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="DTV-STAT-TOTAL-BLOCK-COUNT"></a><code class="constant">DTV-STAT_TOTAL_BLOCK_COUNT</code></h4></div></div></div><p>Measures the total number of blocks received during the same period as
		<a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-ERROR-BLOCK-COUNT" title="DTV_STAT_ERROR_BLOCK_COUNT"><code class="constant">DTV_STAT_ERROR_BLOCK_COUNT</code></a> measurement was taken.</p><p>It can be used to calculate the PER indicator, by dividing
		<a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-ERROR-BLOCK-COUNT" title="DTV_STAT_ERROR_BLOCK_COUNT"><code class="constant">DTV_STAT_ERROR_BLOCK_COUNT</code></a>
		by <a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-TOTAL-BLOCK-COUNT" title="DTV-STAT_TOTAL_BLOCK_COUNT"><code class="constant">DTV-STAT-TOTAL-BLOCK-COUNT</code></a>.</p><p>Possible scales for this metric are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: bullet; "><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_NOT_AVAILABLE</code> - it failed to measure it, or the measurement was not complete yet.</p></li><li class="listitem" style="list-style-type: disc"><p><code class="constant">FE_SCALE_COUNTER</code> - Number of blocks counted while measuring
			<a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STAT-ERROR-BLOCK-COUNT" title="DTV_STAT_ERROR_BLOCK_COUNT"><code class="constant">DTV_STAT_ERROR_BLOCK_COUNT</code></a>.</p></li></ul></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="frontend-property-terrestrial-systems"></a>Properties used on terrestrial delivery systems</h3></div></div></div><div class="toc"><dl class="toc"><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dvbt-params">DVB-T delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dvbt2-params">DVB-T2 delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#isdbt">ISDB-T delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#atsc-params">ATSC delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#atscmh-params">ATSC-MH delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dtmb-params">DTMB delivery system</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="dvbt-params"></a>DVB-T delivery system</h4></div></div></div><p>The following parameters are valid for DVB-T:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-BANDWIDTH-HZ" title="DTV_BANDWIDTH_HZ"><code class="constant">DTV_BANDWIDTH_HZ</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CODE-RATE-HP" title="DTV_CODE_RATE_HP"><code class="constant">DTV_CODE_RATE_HP</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CODE-RATE-LP" title="DTV_CODE_RATE_LP"><code class="constant">DTV_CODE_RATE_LP</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-GUARD-INTERVAL" title="DTV_GUARD_INTERVAL"><code class="constant">DTV_GUARD_INTERVAL</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TRANSMISSION-MODE" title="DTV_TRANSMISSION_MODE"><code class="constant">DTV_TRANSMISSION_MODE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-HIERARCHY" title="DTV_HIERARCHY"><code class="constant">DTV_HIERARCHY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-LNA" title="DTV_LNA"><code class="constant">DTV_LNA</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="dvbt2-params"></a>DVB-T2 delivery system</h4></div></div></div><p>DVB-T2 support is currently in the early stages
			of development, so expect that this section maygrow and become
			more detailed with time.</p><p>The following parameters are valid for DVB-T2:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-BANDWIDTH-HZ" title="DTV_BANDWIDTH_HZ"><code class="constant">DTV_BANDWIDTH_HZ</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CODE-RATE-HP" title="DTV_CODE_RATE_HP"><code class="constant">DTV_CODE_RATE_HP</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CODE-RATE-LP" title="DTV_CODE_RATE_LP"><code class="constant">DTV_CODE_RATE_LP</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-GUARD-INTERVAL" title="DTV_GUARD_INTERVAL"><code class="constant">DTV_GUARD_INTERVAL</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TRANSMISSION-MODE" title="DTV_TRANSMISSION_MODE"><code class="constant">DTV_TRANSMISSION_MODE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-HIERARCHY" title="DTV_HIERARCHY"><code class="constant">DTV_HIERARCHY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STREAM-ID" title="DTV_STREAM_ID"><code class="constant">DTV_STREAM_ID</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-LNA" title="DTV_LNA"><code class="constant">DTV_LNA</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="isdbt"></a>ISDB-T delivery system</h4></div></div></div><p>This ISDB-T/ISDB-Tsb API extension should reflect all information
			needed to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible
			that some very sophisticated devices won't need certain parameters to
			tune.</p><p>The information given here should help application writers to know how
			to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API.</p><p>The details given here about ISDB-T and ISDB-Tsb are just enough to
			basically show the dependencies between the needed parameter values,
			but surely some information is left out. For more detailed information
			see the following documents:</p><p>ARIB STD-B31 - "Transmission System for Digital Terrestrial
			Television Broadcasting" and</p><p>ARIB TR-B14 - "Operational Guidelines for Digital Terrestrial
			Television Broadcasting".</p><p>In order to understand the ISDB specific parameters,
			one has to have some knowledge the channel structure in
			ISDB-T and ISDB-Tsb. I.e. it has to be known to
			the reader that an ISDB-T channel consists of 13 segments,
			that it can have up to 3 layer sharing those segments,
			and things like that.</p><p>The following parameters are valid for ISDB-T:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-BANDWIDTH-HZ" title="DTV_BANDWIDTH_HZ"><code class="constant">DTV_BANDWIDTH_HZ</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-GUARD-INTERVAL" title="DTV_GUARD_INTERVAL"><code class="constant">DTV_GUARD_INTERVAL</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TRANSMISSION-MODE" title="DTV_TRANSMISSION_MODE"><code class="constant">DTV_TRANSMISSION_MODE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-ENABLED" title="DTV_ISDBT_LAYER_ENABLED"><code class="constant">DTV_ISDBT_LAYER_ENABLED</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-PARTIAL-RECEPTION" title="DTV_ISDBT_PARTIAL_RECEPTION"><code class="constant">DTV_ISDBT_PARTIAL_RECEPTION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SOUND-BROADCASTING" title="DTV_ISDBT_SOUND_BROADCASTING"><code class="constant">DTV_ISDBT_SOUND_BROADCASTING</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SB-SUBCHANNEL-ID" title="DTV_ISDBT_SB_SUBCHANNEL_ID"><code class="constant">DTV_ISDBT_SB_SUBCHANNEL_ID</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SB-SEGMENT-IDX" title="DTV_ISDBT_SB_SEGMENT_IDX"><code class="constant">DTV_ISDBT_SB_SEGMENT_IDX</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-SB-SEGMENT-COUNT" title="DTV_ISDBT_SB_SEGMENT_COUNT"><code class="constant">DTV_ISDBT_SB_SEGMENT_COUNT</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-FEC" title="DTV_ISDBT_LAYER*_FEC"><code class="constant">DTV_ISDBT_LAYERA_FEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-MODULATION" title="DTV_ISDBT_LAYER*_MODULATION"><code class="constant">DTV_ISDBT_LAYERA_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-SEGMENT-COUNT" title="DTV_ISDBT_LAYER*_SEGMENT_COUNT"><code class="constant">DTV_ISDBT_LAYERA_SEGMENT_COUNT</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-TIME-INTERLEAVING" title="DTV_ISDBT_LAYER*_TIME_INTERLEAVING"><code class="constant">DTV_ISDBT_LAYERA_TIME_INTERLEAVING</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-FEC" title="DTV_ISDBT_LAYER*_FEC"><code class="constant">DTV_ISDBT_LAYERB_FEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-MODULATION" title="DTV_ISDBT_LAYER*_MODULATION"><code class="constant">DTV_ISDBT_LAYERB_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-SEGMENT-COUNT" title="DTV_ISDBT_LAYER*_SEGMENT_COUNT"><code class="constant">DTV_ISDBT_LAYERB_SEGMENT_COUNT</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-TIME-INTERLEAVING" title="DTV_ISDBT_LAYER*_TIME_INTERLEAVING"><code class="constant">DTV_ISDBT_LAYERB_TIME_INTERLEAVING</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-FEC" title="DTV_ISDBT_LAYER*_FEC"><code class="constant">DTV_ISDBT_LAYERC_FEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-MODULATION" title="DTV_ISDBT_LAYER*_MODULATION"><code class="constant">DTV_ISDBT_LAYERC_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-SEGMENT-COUNT" title="DTV_ISDBT_LAYER*_SEGMENT_COUNT"><code class="constant">DTV_ISDBT_LAYERC_SEGMENT_COUNT</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ISDBT-LAYER-TIME-INTERLEAVING" title="DTV_ISDBT_LAYER*_TIME_INTERLEAVING"><code class="constant">DTV_ISDBT_LAYERC_TIME_INTERLEAVING</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="atsc-params"></a>ATSC delivery system</h4></div></div></div><p>The following parameters are valid for ATSC:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-BANDWIDTH-HZ" title="DTV_BANDWIDTH_HZ"><code class="constant">DTV_BANDWIDTH_HZ</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="atscmh-params"></a>ATSC-MH delivery system</h4></div></div></div><p>The following parameters are valid for ATSC-MH:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-BANDWIDTH-HZ" title="DTV_BANDWIDTH_HZ"><code class="constant">DTV_BANDWIDTH_HZ</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-FIC-VER" title="DTV_ATSCMH_FIC_VER"><code class="constant">DTV_ATSCMH_FIC_VER</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-PARADE-ID" title="DTV_ATSCMH_PARADE_ID"><code class="constant">DTV_ATSCMH_PARADE_ID</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-NOG" title="DTV_ATSCMH_NOG"><code class="constant">DTV_ATSCMH_NOG</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-TNOG" title="DTV_ATSCMH_TNOG"><code class="constant">DTV_ATSCMH_TNOG</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-SGN" title="DTV_ATSCMH_SGN"><code class="constant">DTV_ATSCMH_SGN</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-PRC" title="DTV_ATSCMH_PRC"><code class="constant">DTV_ATSCMH_PRC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-RS-FRAME-MODE" title="DTV_ATSCMH_RS_FRAME_MODE"><code class="constant">DTV_ATSCMH_RS_FRAME_MODE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-RS-FRAME-ENSEMBLE" title="DTV_ATSCMH_RS_FRAME_ENSEMBLE"><code class="constant">DTV_ATSCMH_RS_FRAME_ENSEMBLE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-RS-CODE-MODE-PRI" title="DTV_ATSCMH_RS_CODE_MODE_PRI"><code class="constant">DTV_ATSCMH_RS_CODE_MODE_PRI</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-RS-CODE-MODE-SEC" title="DTV_ATSCMH_RS_CODE_MODE_SEC"><code class="constant">DTV_ATSCMH_RS_CODE_MODE_SEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-SCCC-BLOCK-MODE" title="DTV_ATSCMH_SCCC_BLOCK_MODE"><code class="constant">DTV_ATSCMH_SCCC_BLOCK_MODE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-SCCC-CODE-MODE-A" title="DTV_ATSCMH_SCCC_CODE_MODE_A"><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_A</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-SCCC-CODE-MODE-B" title="DTV_ATSCMH_SCCC_CODE_MODE_B"><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_B</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-SCCC-CODE-MODE-C" title="DTV_ATSCMH_SCCC_CODE_MODE_C"><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_C</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ATSCMH-SCCC-CODE-MODE-D" title="DTV_ATSCMH_SCCC_CODE_MODE_D"><code class="constant">DTV_ATSCMH_SCCC_CODE_MODE_D</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="dtmb-params"></a>DTMB delivery system</h4></div></div></div><p>The following parameters are valid for DTMB:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-BANDWIDTH-HZ" title="DTV_BANDWIDTH_HZ"><code class="constant">DTV_BANDWIDTH_HZ</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INNER-FEC" title="DTV_INNER_FEC"><code class="constant">DTV_INNER_FEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-GUARD-INTERVAL" title="DTV_GUARD_INTERVAL"><code class="constant">DTV_GUARD_INTERVAL</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TRANSMISSION-MODE" title="DTV_TRANSMISSION_MODE"><code class="constant">DTV_TRANSMISSION_MODE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INTERLEAVING" title="DTV_INTERLEAVING"><code class="constant">DTV_INTERLEAVING</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-LNA" title="DTV_LNA"><code class="constant">DTV_LNA</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="frontend-property-cable-systems"></a>Properties used on cable delivery systems</h3></div></div></div><div class="toc"><dl class="toc"><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dvbc-params">DVB-C delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dvbc-annex-b-params">DVB-C Annex B delivery system</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="dvbc-params"></a>DVB-C delivery system</h4></div></div></div><p>The DVB-C Annex-A is the widely used cable standard. Transmission uses QAM modulation.</p><p>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</p><p>The following parameters are valid for DVB-C Annex A/C:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-SYMBOL-RATE" title="DTV_SYMBOL_RATE"><code class="constant">DTV_SYMBOL_RATE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INNER-FEC" title="DTV_INNER_FEC"><code class="constant">DTV_INNER_FEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-LNA" title="DTV_LNA"><code class="constant">DTV_LNA</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="dvbc-annex-b-params"></a>DVB-C Annex B delivery system</h4></div></div></div><p>The DVB-C Annex-B is only used on a few Countries like the United States.</p><p>The following parameters are valid for DVB-C Annex B:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-LNA" title="DTV_LNA"><code class="constant">DTV_LNA</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="frontend-property-satellital-systems"></a>Properties used on satellital delivery systems</h3></div></div></div><div class="toc"><dl class="toc"><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dvbs-params">DVB-S delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#dvbs2-params">DVB-S2 delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#turbo-params">Turbo code delivery system</a></span></dt><dt><span class="section"><a href="FE_GET_SET_PROPERTY.html#isdbs-params">ISDB-S delivery system</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="dvbs-params"></a>DVB-S delivery system</h4></div></div></div><p>The following parameters are valid for DVB-S:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-SYMBOL-RATE" title="DTV_SYMBOL_RATE"><code class="constant">DTV_SYMBOL_RATE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INNER-FEC" title="DTV_INNER_FEC"><code class="constant">DTV_INNER_FEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-VOLTAGE" title="DTV_VOLTAGE"><code class="constant">DTV_VOLTAGE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TONE" title="DTV_TONE"><code class="constant">DTV_TONE</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p><p>Future implementations might add those two missing parameters:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DISEQC-MASTER" title="DTV_DISEQC_MASTER"><code class="constant">DTV_DISEQC_MASTER</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DISEQC-SLAVE-REPLY" title="DTV_DISEQC_SLAVE_REPLY"><code class="constant">DTV_DISEQC_SLAVE_REPLY</code></a></p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="dvbs2-params"></a>DVB-S2 delivery system</h4></div></div></div><p>In addition to all parameters valid for DVB-S, DVB-S2 supports the following parameters:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-PILOT" title="DTV_PILOT"><code class="constant">DTV_PILOT</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-ROLLOFF" title="DTV_ROLLOFF"><code class="constant">DTV_ROLLOFF</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STREAM-ID" title="DTV_STREAM_ID"><code class="constant">DTV_STREAM_ID</code></a></p></li></ul></div><p>In addition, the <a class="link" href="FE_GET_SET_PROPERTY.html#frontend-stat-properties" title="Frontend statistics indicators">DTV QoS statistics</a> are also valid.</p></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="turbo-params"></a>Turbo code delivery system</h4></div></div></div><p>In addition to all parameters valid for DVB-S, turbo code supports the following parameters:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-MODULATION" title="DTV_MODULATION"><code class="constant">DTV_MODULATION</code></a></p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="isdbs-params"></a>ISDB-S delivery system</h4></div></div></div><p>The following parameters are valid for ISDB-S:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: opencircle; "><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-API-VERSION" title="DTV_API_VERSION"><code class="constant">DTV_API_VERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM" title="DTV_DELIVERY_SYSTEM"><code class="constant">DTV_DELIVERY_SYSTEM</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-TUNE" title="DTV_TUNE"><code class="constant">DTV_TUNE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-CLEAR" title="DTV_CLEAR"><code class="constant">DTV_CLEAR</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-FREQUENCY" title="DTV_FREQUENCY"><code class="constant">DTV_FREQUENCY</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INVERSION" title="DTV_INVERSION"><code class="constant">DTV_INVERSION</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-SYMBOL-RATE" title="DTV_SYMBOL_RATE"><code class="constant">DTV_SYMBOL_RATE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-INNER-FEC" title="DTV_INNER_FEC"><code class="constant">DTV_INNER_FEC</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-VOLTAGE" title="DTV_VOLTAGE"><code class="constant">DTV_VOLTAGE</code></a></p></li><li class="listitem" style="list-style-type: circle"><p><a class="link" href="FE_GET_SET_PROPERTY.html#DTV-STREAM-ID" title="DTV_STREAM_ID"><code class="constant">DTV_STREAM_ID</code></a></p></li></ul></div></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="frontend_fcalls.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="dvb_frontend.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="dvb_demux.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Frontend Function Calls&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;Chapter&#160;10.&#160;DVB Demux Device</td></tr></table></div></body></html>