[linux-dvb] Scan API

Andrew de Quincey adq_dvb at lidskialf.net
Sat Nov 19 18:21:05 CET 2005


On Saturday 19 Nov 2005 13:49, w-thiel at gmx.net wrote:
> On Sat, Nov 19, 2005 at 12:13:59AM +0000, Andrew de Quincey wrote:
> > OK, restarting the discussion on the scan API. The last proposal was from
> > Holger, and I like it for the most part. Here is a combination of that
> > proposal with my thoughts:
> >
> > struct dvb_fe_scan_spec {
> >  unsigned freq_start;
> >  unsigned freq_end;
> >  unsigned srate_start;
> >  unsigned srate_end;
> > };
>
> For me - being a feedhunter when I have the time - I would like the
> symbolrates in a different way: not only srate_start and srate_end, but
> also the possibility to provide a list of symbolrates (or even a list of
> symbolrates with low/high for each). There are 'typical' symbolrates
> used on a specific sat.
> Of course, this can be done in a userland program as well with your
> specification.
>
> That could be something like:
> struct dvb_fe_scan_spec {
>   unsigned freq_start;
>   unsigned freq_end;
>   int fe_scan_n_ranges;
>   struct dvb_scan_sr_range *scan_range;
> };
> with:
> struct dvb_scan_sr_range {
> 	unsigned int srate_start;
> 	unsigned srate_end;
> };
>
> A dvb_scan_sr_range could be for example 5630-5632, a list could be:
> { 5630, 5632 }
> { 6320, 6322 }
> {13260,13260 }

Interesting - I was actually going to ask if anyone had any ideas on the best 
way to scan symbol rates, because I'm not 100% sure how to go about it. 




More information about the linux-dvb mailing list