[linux-dvb] Another Twinhan VP20310 problem: me too!: SUCCES!!! sort of...

Manu Abraham abraham.manu at gmail.com
Wed Jan 11 15:23:48 CET 2006

Christophe Thommeret wrote:

>Le Mardi 10 Janvier 2006 16:23, Manu Abraham a écrit :
>Hi Manu,
>>Unlike other DVB cards, the Twinhan and it's clones does support
>>Conditional Access in firmware, and only a userspace application is
>>required to  get descrambling going on them. These cards moreorless
>>resemble FTA cards in their operation as the CA stack is not necessary
>>for their operation. Just sending the CA_PMT message to the cards helpd
>>in descrambling the streams in firmware, and the relevant stream can be
>>watched with xine or mplayer or any other player available.
>>There requires a userspace application to send the message to the card,
>>which the format is somewhat similar to the EN50221  protocol
>>specifaction for the application data units.
>Cool! It sounds pretty simple to implement even without such a card. I could 
>give it a try, shamelessly copying ca_szap :)

Sure. That would be a very good start. Moreover it would be a big help 
for the people who are trying to flee from the command line.
If you have any queries, would be glad to help. :-)

We (cc'd the others) started upon a CI stack having both CI support (The 
High level CI also) LGPL'd, so that anyone is free to use that code in 
applications. With this library anybody wishing to use it will get the 
advantages of all CI types (that was the basic idea) without having 
independent application bothering to rewriting the CI stack with 
different CI types.

We are still working on this (not yet complete). I have been almost 
sleeping.. ;-) due to a broken link from my ISP.


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