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| author |   Antti Palosaari <crope@iki.fi> | 2015-10-10 13:51:09 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-10-20 15:56:29 -0200 |
| commit | c7c1d5a5dea80d908fa9a7945424d872b3588757 (patch) | |
| tree | 37aa1788875335f625ecf6dd817704fbaab25b80 /Documentation/DocBook/media/v4l | |
| parent | [media] DocBook: add SDR specific info to G_TUNER / S_TUNER (diff) | |
| download | linux-dev-c7c1d5a5dea80d908fa9a7945424d872b3588757.tar.xz linux-dev-c7c1d5a5dea80d908fa9a7945424d872b3588757.zip | |
[media] DocBook: add SDR specific info to G_MODULATOR / S_MODULATOR
Add SDR specific notes to G_MODULATOR / S_MODULATOR documentation.
Signed-off-by: Antti Palosaari <crope@iki.fi>
[hans.verkuil@cisco.com: add quotes in "The term 'modulator'"]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'Documentation/DocBook/media/v4l')
| -rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-g-modulator.xml | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml b/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml index 80167fc4483d..96e17b344c5d 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml @@ -78,6 +78,12 @@ different audio modulation if the request cannot be satisfied. However this is a write-only ioctl, it does not return the actual audio modulation selected.</para> + <para><link linkend="sdr">SDR</link> specific modulator types are +<constant>V4L2_TUNER_SDR</constant> and <constant>V4L2_TUNER_RF</constant>. +For SDR devices <structfield>txsubchans</structfield> field must be +initialized to zero. +The term 'modulator' means SDR transmitter in this context.</para> + <para>To change the radio frequency the &VIDIOC-S-FREQUENCY; ioctl is available.</para> |