[linux-dvb] Re: dvbtune

[Holger Waechtler <holger@convergence.de>]

maroi wrote:
> anybody can tell my why when I run dvbtune it says
> ./dvbtune -f 11262300 -p h -s 27500 -n 3003 -i
> Using DVB card "Alps BSRV2"
> tuning DVB-S to L-Band:1073858712, Pol:H Srate=27500000, 22kHz=off
> polling....
> Getting frontend event
> FE_GET_EVENT: Value too large for defined data type

The frontend event ringbuffer is overflown. Applications should ignore 
this and check only the last event if there is no explicit reason to 
check the event history.


> and then if I run it again it works
> ./dvbtune -f 11262300 -p h -s 27500 -n 3003 -i
> Using DVB card "Alps BSRV2"
> tuning DVB-S to L-Band:1073858712, Pol:H Srate=27500000, 22kHz=off
> polling....
> Getting frontend event
> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI 
> FE_HAS_SYNC
> Bit error rate: 10485750
> Signal strength: 42148
> SNR: 48830
> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI 
> FE_HAS_SYNC
> this is happening every time

Whenever you call dvbtune it will remove one (or more) events from the 
ringbuffer and so you don't see the overflow anymore.

Holger



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