[linux-dvb] How do I use FE_DISEQC_SEND_MASTER_CMD and FE_SET_FRONTEND correctly?

Reinhard Nissl rnissl at gmx.de
Sun Dec 11 13:46:21 CET 2005


Johannes Stezenbach wrote:

>>>>>Is it therefore necessary to repeat FE_SET_FRONTEND too at an interval 
>>>>>of 500 ms?
> IMHO this too short. I've seen cards lock on a signal after some seconds
> of zig-zag. If you restart tuning every .5s it might never get a lock.

I've checked my TechniSat receiver: the time between two DiSEqC messages 
  is about 1000 ms. I've changed my VDR patch accordingly and didn't see 
any tuning timeouts so far (i. e. the tuner got a lock within 1000 ms).

Maybe it would be a good idea to have an ioctl() for the frontend to 
continue it's current tuning operation after a DiSEqC message.

Dipl.-Inform. (FH) Reinhard Nissl
mailto:rnissl at gmx.de

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