Re: C-Media 8x38 driver for kernel 2.4

[Jan Niehusmann <jan@gondor.com>]

On Mon, Jun 05, 2000 at 04:21:33AM -0400, Chen-Li Tien wrote:
> I also made a version that support kernel 2.2 and 2.4 (thanks for your
> work), and fixes since the version 3.21. I read that you add S/PDIF in/out
> in the init-module. May I remind you that they are not supported with all
> format, so if you only use 44k/48k then it is ok.

Is there any documentation about that topic available? I only found some 
register descriptions, and used them (with some trial and error) to 
enable s/pdif in and out. It's clearly an experimental feature.
It should not be a big problem to enable s/pdif only if compatible parameters
are used, with documentation available. 

But I do have problems with lost or modified data - for testing purposes
I connected s/pdif out back to in, and piped a textfile through it (turn
your stereo off before you try this ;-) )

Some months ago I did an interesting observation: Corruptions were worse on
an idle system! As soon as I started to play music on a second sound card, 
I saw nearly no lost bytes any more. 

I'd really like to hear if other people have similar problems. Perhaps I just
got a bad sound card?

Jan