[vdr] Restricting a particular dvb card from tuning to channels with a selected modulation

Petri Helin phelin at googlemail.com
Wed Oct 28 23:15:48 CET 2009


I have an USB DVB-C card (Reddo dvb-c, actually a relabelled Tongshi 
box), which works very well with the current Linux driver excluding 
channels with QAM-256 modulation. Would it be easy to check 
FE_CAN_QAM_256 in vdr before trying to use a device to tune to a 
particular channel? In such a case I could deactivate FE_CAN_QAM_256 in 
the drivers. I am using VDR 1.7.9, if it makes a difference.

Of course at the moment the proper solution would be to modify the 
channels.conf to se a preselected card to tune to a particular channel, 
but in this case there are two drawbacks with it. 1) I have more than 
one card that I can use for QAM-256 channels and would like to use them 
all, and 2) channels woth QAM-256 are also encrypted and I have yet to 
figure out how to set both the CA code and the number of the card in the 
"Conditional access" parameter in the channels.conf.

Actually now that I think of it... How about separating the explicit 
card selection and conditional access by introducing a new paremeter in 
the channels.conf that could be used to preselect the card(s) that can 
tune to the selected channel?


More information about the vdr mailing list