On 10-01-2012 19:45, Antti Palosaari wrote: > On 01/05/2012 05:37 PM, Mauro Carvalho Chehab wrote: >> With all these series applied, it is now possible to use frontend 0 >> for all delivery systems. As the current tools don't support changing >> the delivery system, the dvb-fe-tool (on my experimental tree[1]) can now >> be used to change between them: >> >> For example, to use DVB-T with the standard scan: >> >> $ ./dvb-fe-tool -d DVBT&& scan /usr/share/dvb/dvb-t/au-Adelaide >> >> [1] http://git.linuxtv.org/mchehab/experimental-v4l-utils.git/shortlog/refs/heads/dvb-utils > > I tested that now using nanoStick T2 cxd2820r driver. I got it working somehow, but I suspect there is some bugs at least for DVB-C. But forget those as now. Well, we need to hardly test the DVB drivers after a 200+ patch series. Regressions will happen. I've cached a few already, but I'm sure there are others that are not that trivial. > As it now registers only one frontend I must switch mode using dvb-fe-tool when I want to use DVB-C. Argh. > > I don't see reason why it was needed to remove old DVB-C frontend1. Why it wasn't possible to leave FE1 > as it was and enhance only functionality of FE0 like it is now? For that strategy we doesn't break old set-ups as now happens. This were discussed in the past: http://www.spinics.net/lists/linux-media/msg35542.html In fact, I've proposed this strategy as one of the alternatives for MFE (approach 4): >>>>> Approach 4) fe0 is a frontend "superset" >>>>> >>>>> *adapter0 >>>>> *frontend0 (DVB-S/DVB-S2/DVB-T/DVB-T2/DVB-C/ISDB-T) - aka: FE superset >>>>> *frontend1 (DVB-S/DVB-S2) >>>>> *frontend2 (DVB-T/DVB-T2) >>>>> *frontend3 (DVB-C) >>>>> *frontend4 (ISDB-T) The arguments where that it would be confusing and it could be complex to maintain. I think that the better is to see what happens with the applications during this kernel cycle, and then decide what to do. A quick fix for the issue at the applications side is very easy: for DVBv5.5 and upper, just try to force the frontend to change to the new delivery system via a DVBv5 call. If it accepts, it is a multi frontend devnode. A better fix is to also implement DTV_ENUM_DELSYS. Regards, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
