[linux-dvb] [PATCH][REWORKED/RFC] dvb-s2 support added to frontend.h

Marcel Siegert mws at linuxtv.org
Tue Mar 7 09:22:24 CET 2006


On Tuesday 07 March 2006 05:35, Alan Nisota wrote:
> On 3/3/06, Marcel Siegert wrote:
> > Hi,
> >
> > attached is the newest version of my frontend.h patch that should bring us
> > support for dvb-s2 frontends on api side.
> First off, did I miss something?  support for 8PSK seems to be missing
> (no MOD_8PSK in fe_modulation_t)
oopsy doopsy :)

missed that, fixed in my tree. also added PSK_16.


> > chose to have ioctls numbered NOT with the __FE_[GET|SET]_FRONTEND_OLD numbers,
> > after discussion with andreas oberritter. (think this needs more investigation/discussion)
> What is the reason given for this?  Not that I have much of an
> opinion, but I was just curious why there need to be two sets of
> ioctls with the same functionality?  If you are going to do it that
> way, why do you need to maintain backwards compatibility at all?
> You could define dvb_frontend_parameters without the partition for
> extended data, since apps will either use the old or the new api (then
> just call the new ioctls _FE_*_FRONTEND_NEW and be done with it.

i had a big discussion with andreas oberitter on that topic. took him in cc now, 
so he maybe is going to explain it for the ml readers, why same ioctl numbers
on different architectures may fail.

andreas? can you explain this again?

best regards
marcel

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