[linux-dvb] frequency out of range - Problems

Lars Buerding lindvb at metatux.net
Mon Aug 6 15:08:16 CEST 2007


Hello Michael,

>> Working version:
>> - Kernel V2.6.22.1 / dvb-pll-0549f1757f66
>>     
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  This is an invalid revision.  Where did you get that tree?
>   
I dont remember exactly, but this was short before I subscribed
to linuxtv-dvb, and I think I got it from your message here:

http://linuxtv.org/pipermail/linux-dvb/2007-June/018602.html

> ...quoting tda8083.c:
>
>       446 		.frequency_min		= 950000,     /* FIXME: guessed! */
>
>       447 		.frequency_max		= 1400000,    /* FIXME: guessed! */
>
>
> ... looks like this min / max was guessed incorrectly.  This issue has only been made visible recently due to this recent changeset from Oliver Endriss:
>
> dvb_frontend: Range check of frequency and symbol rate
> http://linuxtv.org/hg/v4l-dvb/rev/8186a34dd0a6
>
> Oliver's patch is correct, but it exposed this bug inside tda8083.c
>   

Ok, thanks for the explanation.

> ...or instead, you can just increase .frequency_max inside tda8083.c
>   

I did that for now and it works.


Thanks,
Lars




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