[dvblast-devel] CA device addressing

Kompan Kolia kompan at yandex.ru
Mon Aug 10 12:10:00 CEST 2015


I try to use mknod for "symlink" of /adapter1/ca0 as /adapter0/ca1
It`s work with -y option.

In this case I need two instance of dvblast.
One for receive signal from adapter0 and cam0
Second for receive signal from adapter0 and cam1 (symlink of adapter1/ca0)
 
But second instance can`t start because frontend0 is use. 

10.08.2015, 12:59, "Doychin Dokov" <dokov at silistra.tv>:
> I believe TBS cards are not capable of what you want to achieve - each CA slot is hardwired to the appropriate tuner and not routable the way you want it.
>
> - D.
>
> 2015-08-10 12:50 GMT+03:00 Kompan Kolia <kompan at yandex.ru>:
>> Sorry for repeating, but previous letter was in HTML format, and I don`t receive any comments.
>>
>> Hello All :)
>>
>> I have system with few TBS (TBS 6991SE) with two inputs.
>>
>> This cards are made like two tuners on one board.
>> Each card consists of two tuners and two CI slots
>>
>> After system boot in /dev/dvb folder looks like that:
>>
>> /dev/dvb/adapter0:
>> total 0
>> crw-rw---T 1 root video 212, 53 Jul 13 17:25 ca0
>> crw-rw---T 1 root video 212, 50 Jul 13 17:25 demux0
>> crw-rw---T 1 root video 212, 51 Jul 13 17:25 dvr0
>> crw-rw---T 1 root video 212, 54 Jul 13 17:25 frontend0
>> crw-rw---T 1 root video 212, 52 Jul 13 17:25 net0
>>
>> /dev/dvb/adapter1:
>> total 0
>> crw-rw---T 1 root video 212, 58 Jul 13 17:25 ca0
>> crw-rw---T 1 root video 212, 55 Jul 13 17:25 demux0
>> crw-rw---T 1 root video 212, 56 Jul 13 17:25 dvr0
>> crw-rw---T 1 root video 212, 59 Jul 13 17:25 frontend0
>> crw-rw---T 1 root video 212, 57 Jul 13 17:25 net0
>>
>> We want to achieve following:
>>
>> First instance of dvblast:
>> 1 Receives encrypted DVB-S2 signal from the first input (/dev/dvb/adapter0/frontend0)
>> 2 CA0 (/dev/dvb/adapter0/ca0) decrypts it.
>>
>> Second instance of dvblast:
>> 1 Receives encrypted DVB-S2 signal from the same FIRST input (/dev/dvb/adapter0/frontend0)  (the same transponder)
>> 2 CA0 from second card (/dev/dvb/adapter1/ca0) decrypts it.
>>
>> Third instance of dvblast:
>> Receives unencrypted FTA DVB-S2 signal from second input (/dev/dvb/adapter1/frontend0) from some other transponder.
>>
>> We know about -y (--ca) feature, but it does not work for us, because second CA (adapter1/ca0) assigned to other DVB-tuner (adapter1) during boot.
>>
>> Is there any solution or workaround for specifying input source for receive stream and CA to decode it.
>>
>> Example:
>>
>> ######### For First Input #################
>>
>> dvblast  -a 0 -f xxxxx -s xxxxxx -v 13 -c /dvblast.cfg
>>
>> ------------ dvblast.cfg ------------
>>
>> # Channel 1, /adapter0/frondend0, /adapter0/ca0
>>
>> 224.5.5.1:1234 1 216
>>
>> # Channel 2, /adapter0/frondend0, /adapter1/ca0
>> 224.5.5.2:1234/ca=/adapter1/ca0 1 217
>>
>> ------- end of dvblast.cfg ----------
>>
>> ######### END For First Input #################
>>
>> ######### For Second Input #################
>>
>> dvblast  -a 0 -f xxxxx -s xxxxxx -v 13 -c /dvblast.cfg
>>
>> ------------ dvblast.cfg ------------
>> # Channel 1, /adapter1/frondend0
>>
>> 224.5.5.1:1234 0 210
>>
>> ------- end of dvblast.cfg ----------
>>
>> ######### END For Second Input #################
>>
>> or something else.
>>
>> Thank for advise.
>> _______________________________________________
>> dvblast-devel mailing list
>> dvblast-devel at videolan.org
>> https://mailman.videolan.org/listinfo/dvblast-devel
>
> ,
>
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