Hi, Hartmut, Am Freitag, den 15.02.2008, 01:32 +0100 schrieb Hartmut Hackmann: > Hi, again > > <snip> > > >> So this one works as well, great! But which one is it? > >> Please tell me the minor device id. I need to use it to separate the 2 sections. > >> i will need to control the other one in a very different way. > > > > Seems default is some RF loopthrough. > > > > I'll need to measure too against loopthrough conditions, but for sure > > voltage is only on the upper connector and previously with the RF feed > > from the external receiver the lower connector was fine enough. > > > > No voltage in any previous testing and the 12Volts were always > > connected. > > > > Both slightly different Quads from different fabs work as well as the > > CTX948. In my case it is the 16be:0007 and to the 16be:0008 I have no > > access. > > > Perfect, that's what i needed to know. > > <snip> > > > > We might be already through here and you might like to commit first ;) > > > Indeed. I should also announce this status for the md8800... > > What's your opinion on this: > According to the hints i got, the isl6405 is visible only on one section > of the md8800. The other section has control over the voltage through > a GPIO port. So unless i do something very dirty, there will either be the > restriction > - that the DVB-S decoder of the 16be:0007 section needs to be selected first. > Otherwise the other DVB-S part will not work > - or i will need to always fire up the LNB supply of the 0008 section as soon > as DVB is initialized. > The second approach has the advantage that it has little effect for the end > user while the first needs to be explained. > But i am not sure whether the isl6405 is fully short circuit proof. I will read > the datasheet again... > if the second approach is safe and the API says nothing different, according to the MD8800 manual, it seems to be closer to the behavior of the other OS, but I can't test it. In opposite to what is stated for the switchable RF loopthrough on the two hybrid tuners, the manual claims that the DVB-S inputs are separate and not connected and nothing to switch there ... Andrew has loopthrough enabled by default and that is what I even see from the unused second DVB-S tuner to the first one I can use. We might want to set has_loopthrough = 0 then too. Funny stuff again. The latest revision of the manual _seems_ to be clear for possible tuner/demod/bridge combinations, also states nothing about concurrent usage of the other analog inputs. Cheers, Hermann _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
