| @@ -137,25 +137,78 @@ get/set up to 64 properties. The actual meaning of each property is described on · 136 unmodified lines |
| 137 | </section> | 137 | </section> |
| 138 | <section id="DTV-MODULATION"> | 138 | <section id="DTV-MODULATION"> |
| 139 | <title><constant>DTV_MODULATION</constant></title> | 139 | <title><constant>DTV_MODULATION</constant></title> |
| 140 | <para>Specifies the frontend modulation type for cable and satellite types. The modulation can be one of the types bellow:</para> | 140 | <para>Specifies the frontend modulation type for delivery systems that supports |
| 141 | <programlisting> | 141 | more than one modulation type. The modulation can be one of the types |
| 142 | typedef enum fe_modulation { | 142 | defined by &fe-modulation;.</para> |
| 143 | QPSK, | 143 | |
| 144 | QAM_16, | 144 | |
| 145 | QAM_32, | 145 | <section id="fe-modulation-t"> |
| 146 | QAM_64, | 146 | <title>Modulation property</title> |
| 147 | QAM_128, | 147 | |
| 148 | QAM_256, | 148 | <para>Most of the digital TV standards currently offers more than one possible |
| 149 | QAM_AUTO, | 149 | modulation (sometimes called as "constellation" on some standards). This |
| 150 | VSB_8, | 150 | enum contains the values used by the Kernel. Please notice that not all |
| 151 | VSB_16, | 151 | modulations are supported by a given standard.</para> |
| 152 | PSK_8, | 152 | |
| 153 | APSK_16, | 153 | <table pgwide="1" frame="none" id="fe-modulation"> |
| 154 | APSK_32, | 154 | <title>enum fe_modulation</title> |
| 155 | DQPSK, | 155 | <tgroup cols="2"> |
| 156 | QAM_4_NR, | 156 | &cs-def; |
| 157 | } fe_modulation_t; | 157 | <thead> |
| 158 | </programlisting> | 158 | <row> |
| | 159 | <entry>ID</entry> |
| | 160 | <entry>Description</entry> |
| | 161 | </row> |
| | 162 | </thead> |
| | 163 | <tbody valign="top"> |
| | 164 | <row> |
| | 165 | <entry>QPSK</entry> |
| | 166 | <entry>QPSK modulation</entry> |
| | 167 | </row><row> |
| | 168 | <entry>QAM_16</entry> |
| | 169 | <entry>16-QAM modulation</entry> |
| | 170 | </row><row> |
| | 171 | <entry>QAM_32</entry> |
| | 172 | <entry>32-QAM modulation</entry> |
| | 173 | </row><row> |
| | 174 | <entry>QAM_64</entry> |
| | 175 | <entry>64-QAM modulation</entry> |
| | 176 | </row><row> |
| | 177 | <entry>QAM_128</entry> |
| | 178 | <entry>128-QAM modulation</entry> |
| | 179 | </row><row> |
| | 180 | <entry>QAM_256</entry> |
| | 181 | <entry>256-QAM modulation</entry> |
| | 182 | </row><row> |
| | 183 | <entry>QAM_AUTO</entry> |
| | 184 | <entry>Autodetect QAM modulation</entry> |
| | 185 | </row><row> |
| | 186 | <entry>VSB_8</entry> |
| | 187 | <entry>8-VSB modulation</entry> |
| | 188 | </row><row> |
| | 189 | <entry>VSB_16</entry> |
| | 190 | <entry>16-VSB modulation</entry> |
| | 191 | </row><row> |
| | 192 | <entry>PSK_8</entry> |
| | 193 | <entry>8-PSK modulation</entry> |
| | 194 | </row><row> |
| | 195 | <entry>APSK_16</entry> |
| | 196 | <entry>16-APSK modulation</entry> |
| | 197 | </row><row> |
| | 198 | <entry>APSK_32</entry> |
| | 199 | <entry>32-APSK modulation</entry> |
| | 200 | </row><row> |
| | 201 | <entry>DQPSK</entry> |
| | 202 | <entry>DQPSK modulation</entry> |
| | 203 | </row><row> |
| | 204 | <entry>QAM_4_NR</entry> |
| | 205 | <entry>4-QAM-NR modulation</entry> |
| | 206 | </row> |
| | 207 | </tbody> |
| | 208 | </tgroup> |
| | 209 | </table> |
| | 210 | </section> |
| | 211 | |
| 159 | </section> | 212 | </section> |
| 160 | <section id="DTV-BANDWIDTH-HZ"> | 213 | <section id="DTV-BANDWIDTH-HZ"> |
| 161 | <title><constant>DTV_BANDWIDTH_HZ</constant></title> | 214 | <title><constant>DTV_BANDWIDTH_HZ</constant></title> |