Hauppage WinTV/Brooktree Bt848 : no sound

[Stephan Wurm <em-pi-fuenf@xxxxxxxxxxx>]

I have exactly the same problem with my "Anubis/Typhoon TView RDS". It's 
using a bt878 chip and works fine in Windows. But in Linux I don't have a 
single noise out of the cards line-out.
I have tested nearly every module distributed with bttv but there was no 
solution.