Le samedi 24 février 2007 22:16, Dominique Dumont a écrit : > manu <eallaud@xxxxxxxx> writes: > >> Aston dual CAM (Viacess and others) can decrypt 2 channels at a time > >> (provided the CI stack on Linux side can provide correct > >> informations). > > > > And does the linux CI stack provide this? > > There's the rub. There's no such thing as "the linux CI stack". > > Each dvb application provides its own CI (EN50221) stack. > > Vdr has one, kaffeine also and probably other applications. > > To make the issue more complex, there's 2 ways to implement the CI > stack, depending on the DVB card. > > For low level CI API, i.e. Hauppauge TT cards), the CI stack is ~90% > implemented in software in the DVB application. > > For high level CI (i.e Twinhan and clones), the stack is half > implemented in firmare (i.e. bugs can't be fixed) and half in software > in the application. AFAIK, vdr can't handle high-level CI API. > > For more information, see: > http://linuxtv.org/wiki/index.php/CI > http://linuxtv.org/wiki/index.php/Supported_CAM_modules Kaffeine uses libdvb, that implements a CI stack that supports both HLCI and LLCI. libdvb can be found in v4l-dvb tree. -- Christophe Thommeret _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
