comments for DVB LNA API

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



I am looking how to implement LNA support for the DVB API.

What we need to be configurable at least is: OFF, ON, AUTO.

There is LNAs that support variable gain and likely those will be sooner or later. Actually I think there is already LNAs integrated to the RF-tuner that offers adjustable gain. Also looking to NXP catalog and you will see there is digital TV LNAs with adjustable gain.

Coming from that requirements are:
adjustable gain 0-xxx dB
LNA OFF
LNA ON
LNA AUTO

Setting LNA is easy but how to query capabilities of supported LNA values? eg. this device has LNA which supports Gain=5dB, Gain=8dB, LNA auto?

LNA ON (bypass) could be replaced with Gain=0 and LNA ON with Gain>0, Gain=-1 is for auto example.



regards
Antti

--
http://palosaari.fi/

--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux