Re: [video4linux-cvs] [hg:v4l-dvb] dvb-pll: Move IF frequency from per-band data to per-tuner data
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On Wed, 21 Mar 2007, Manu Abraham wrote: > > > }; > > EXPORT_SYMBOL(dvb_pll_samsung_tbmv); > > @@ -365,13 +382,13 @@ struct dvb_pll_desc dvb_pll_philips_sd18 > > .name = "Philips SD1878", > > .min = 950000, > > .max = 2150000, > > + .iffreq= 249, /* zero-IF, offset 249 is to round up */ > > > How can you have an IF for a ZIF tuner ? Incorrect indeed. Incorrect > is the comment as well as the offset is 1MHz, IIRC I didn't change the way that tuner worked, the offset is effectively the same as it was before. The offset is less than the tuning step size of 500 kHz, so it's still using an IF of zero. Adding the extra 249 just changes the way the rounding is done. It makes it round up, instead of to the nearest integer. I don't know why this tuner wants to round up, but that's the way it was and I didn't change it.