It seems C-series kernel sources were removed from Samsung website some time ago.
I tried to fill the request form, but the response was:
So, no luck.Samsung douchebags wrote: The model that you request had been produced and opened the opensource code by this site.
However, now we do not manage or update that source code more.
Thus, does anyone happen to have any of the removed files saved somewhere? I'm personally interested in sources for my C6600, but it probably would be a Good Deed to salvage as much as possible.