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Diffstat (limited to 'Documentation/DocBook/media/v4l/media-types.xml')
| -rw-r--r-- | Documentation/DocBook/media/v4l/media-types.xml | 81 |
1 files changed, 80 insertions, 1 deletions
diff --git a/Documentation/DocBook/media/v4l/media-types.xml b/Documentation/DocBook/media/v4l/media-types.xml index 0ee0f3386cdf..5e3f20fdcf17 100644 --- a/Documentation/DocBook/media/v4l/media-types.xml +++ b/Documentation/DocBook/media/v4l/media-types.xml @@ -80,7 +80,46 @@ </row> <row> <entry><constant>MEDIA_ENT_F_TUNER</constant></entry> - <entry>Digital TV, analog TV, radio and/or software radio tuner.</entry> + <entry>Digital TV, analog TV, radio and/or software radio tuner, + with consists on a PLL tuning stage that converts radio + frequency (RF) signal into an Intermediate Frequency (IF). + Modern tuners have internally IF-PLL decoders for audio + and video, but older models have those stages implemented + on separate entities. + </entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_IF_VID_DECODER</constant></entry> + <entry>IF-PLL video decoder. It receives the IF from a PLL + and decodes the analog TV video signal. This is commonly + found on some very old analog tuners, like Philips MK3 + designs. They all contain a tda9887 (or some software + compatible similar chip, like tda9885). Those devices + use a different I2C address than the tuner PLL. + </entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_IF_AUD_DECODER</constant></entry> + <entry>IF-PLL sound decoder. It receives the IF from a PLL + and decodes the analog TV audio signal. This is commonly + found on some very old analog hardware, like Micronas + msp3400, Philips tda9840, tda985x, etc. Those devices + use a different I2C address than the tuner PLL and + should be controlled together with the IF-PLL video + decoder. + </entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_AUDIO_CAPTURE</constant></entry> + <entry>Audio Capture Function Entity.</entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_AUDIO_PLAYBACK</constant></entry> + <entry>Audio Playback Function Entity.</entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_AUDIO_MIXER</constant></entry> + <entry>Audio Mixer Function Entity.</entry> </row> </tbody> </tgroup> @@ -162,6 +201,46 @@ <entry>Device node interface for Software Defined Radio (V4L)</entry> <entry>typically, /dev/swradio?</entry> </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_PCM_CAPTURE</constant></entry> + <entry>Device node interface for ALSA PCM Capture</entry> + <entry>typically, /dev/snd/pcmC?D?c</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_PCM_PLAYBACK</constant></entry> + <entry>Device node interface for ALSA PCM Playback</entry> + <entry>typically, /dev/snd/pcmC?D?p</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_CONTROL</constant></entry> + <entry>Device node interface for ALSA Control</entry> + <entry>typically, /dev/snd/controlC?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_COMPRESS</constant></entry> + <entry>Device node interface for ALSA Compress</entry> + <entry>typically, /dev/snd/compr?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_RAWMIDI</constant></entry> + <entry>Device node interface for ALSA Raw MIDI</entry> + <entry>typically, /dev/snd/midi?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_HWDEP</constant></entry> + <entry>Device node interface for ALSA Hardware Dependent</entry> + <entry>typically, /dev/snd/hwC?D?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_SEQUENCER</constant></entry> + <entry>Device node interface for ALSA Sequencer</entry> + <entry>typically, /dev/snd/seq</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_TIMER</constant></entry> + <entry>Device node interface for ALSA Timer</entry> + <entry>typically, /dev/snd/timer</entry> + </row> </tbody> </tgroup> </table> |