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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-08-22 15:58:26 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-08-22 20:52:56 +0300 |
| commit | 1a77763428c7647e74347c1c5760440fe0cd0aea (patch) | |
| tree | c7ebcf10edc7f0da504ab1fa64f1830d8c133996 /drivers/media | |
| parent | 0c68b1ce850592fb5812e425cba6ab92951955a4 (diff) | |
| download | linux-1a77763428c7647e74347c1c5760440fe0cd0aea.tar.xz | |
[media] Docbook: Document struct analog_parameters
That struct inside dvb-frontend.h stores some parameters
from V4L2 API (videodev2.h), in order to be used by the
hybrid analog/digital TV tuners.
Document it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb-core/dvb_frontend.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h index 1ffa9a746fae..8fc8d3a98382 100644 --- a/drivers/media/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb-core/dvb_frontend.h @@ -91,6 +91,20 @@ struct dvb_tuner_info { u32 bandwidth_step; }; +/** + * struct analog_parameters - Parameters to tune into an analog/radio channel + * + * @frequency: Frequency used by analog TV tuner (either in 62.5 kHz step, + * for TV, or 62.5 Hz for radio) + * @mode: Tuner mode, as defined on enum v4l2_tuner_type + * @audmode: Audio mode as defined for the rxsubchans field at videodev2.h, + * e. g. V4L2_TUNER_MODE_* + * @std: TV standard bitmap as defined at videodev2.h, e. g. V4L2_STD_* + * + * Hybrid tuners should be supported by both V4L2 and DVB APIs. This + * struct contains the data that are used by the V4L2 side. To avoid + * dependencies from V4L2 headers, all enums here are declared as integers. + */ struct analog_parameters { unsigned int frequency; unsigned int mode; @@ -111,16 +125,16 @@ enum tuner_param { /** * enum dvbfe_algo - defines the algorithm used to tune into a channel * - * @DVBFE_ALGO_HW: (Hardware Algorithm) + * @DVBFE_ALGO_HW: Hardware Algorithm - * Devices that support this algorithm do everything in hardware * and no software support is needed to handle them. * Requesting these devices to LOCK is the only thing required, * device is supposed to do everything in the hardware. * - * @DVBFE_ALGO_SW: (Software Algorithm) + * @DVBFE_ALGO_SW: Software Algorithm - * These are dumb devices, that require software to do everything * - * @DVBFE_ALGO_CUSTOM: (Customizable Agorithm) + * @DVBFE_ALGO_CUSTOM: Customizable Agorithm - * Devices having this algorithm can be customized to have specific * algorithms in the frontend driver, rather than simply doing a * software zig-zag. In this case the zigzag maybe hardware assisted @@ -128,7 +142,7 @@ enum tuner_param { * this algorithm, in conjunction with the search and track * callbacks, utilizes the driver specific algorithm. * - * @DVBFE_ALGO_RECOVERY: (Recovery Algorithm) + * @DVBFE_ALGO_RECOVERY: Recovery Algorithm - * These devices have AUTO recovery capabilities from LOCK failure */ enum dvbfe_algo { |