On Wed, Jul 30, 2008 at 8:01 PM, Rene Herman rene.herman@keyaccess.nl wrote:
On 30-07-08 22:37, Andrew Paprocki wrote:
I briefly checked the code for the Delta1010 (ice1712) to see if there was a way from user space to force the SCMS copy prohibited bits on in the S/PDIF stream. I see the driver initializes the bits to 0. Is there already a way to do this from user space, or would I have to modify the driver to force them on (or use a module parameter)?
I can't try this myself right now, but try "man iecset".
I actually found this code as well: http://www.cs.tut.fi/~ik/mpegspdif/output.c
It appears you can set the bits when opening the card by using a device string like this:
sprintf(devstr, "iec958:AES0=0x%x,AES1=0x%x,AES2=0x%x,AES3=0x%x", s[0], s[1], s[2], s[3]);
I'll look into both methods.
Thanks, -Andrew