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Re: PATCH: Query DVB frontend capabilities



Em 14-11-2011 16:30, Manu Abraham escreveu:
> On Mon, Nov 14, 2011 at 11:38 PM, Mauro Carvalho Chehab
> <mchehab@xxxxxxxxxx> wrote:
>> Yet, this doesn't require any changes at DVB API, as all that the demodulator
>> need to know is the sub-carrier parameters (frequency, roll-off, symbol
>> rate, etc).
> 
> You do: this is why there were changes to the V3 API to accomodate
> DVB-S2, which eventually became V5. The major change that underwent is
> the addition of newer modulations. The demodulator need to be
> explicitly told of the modulation. With some demodulators, the
> modulation order could be detected from the PL signaling, rather than
> the user space application telling it.

DVB-S2 doesn't require DVB bandwidth to be specified.

Regards,
Mauro
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