Binu Balakrishnan wrote: > > Dear All, > > Looking at the linux DVB front end API, I couldnot find any > functionality related to analog transmissions like TV systems, read out > of AFC information. Can anybody give some information on how this API > can be extented for analog DVB was originally meant for use with Digital devices. For simple PLL's things are/were quite easy to setup the PLL through sending a few bytes for the same, eventhough not explicitly having an exhaustive API for the analog part. With silicon tuners, devices that provide more functionality rather than being too simple and introduces a a few issues with such cases. The easy way to handle such devices (since Analog not being a part of the DVB frontend API and that the frontend related information is handled through the I2C bus, it is not too hard to register an analog tuner interface through the I2C bus, which would mean that you are registering the tuner from the I2C interface from the bridge directly, rather than through the DVB frontend interface) You would of course need to have locking between the Analog and Digital Interfaces. The current situation might change in the future. I did have a proposal [1] a little while back to provide support for the same even for devices using DSP's which require them to know the modulation/delivery system etc for setting up the FIR filter implementation on it. For providing additional functionality, we can provide a callback for each new functionality as well in such a case. Regards, Manu [1]http://article.gmane.org/gmane.comp.video.video4linux/32821/match=multi+std+silicon+tuners+analog > > Regards > Binu Balakrishnan > NXP Semiconductors India Pvt Ltd, > Information Technology Park, > Nagawara Village, Kasaba Hobli, > Bangalore 560 045 > Mobile: +91 9980540749 > Tel: +91 80 40247257 > Fax: +91 80 40247852. > > > ------------------------------------------------------------------------ > > _______________________________________________ > linux-dvb mailing list > linux-dvb@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
