The Dynalinx is an iTex chipset; itex don't release the source, appear to be in chapter 11 bankruptcy, and didn't answer my email.
My ADSL modem in an internal PCI.
I require an internal PCI; not any ethernet gadget (and I'd prefer not USB).
I've had several different ethernet things, and they all are screwing up under heavy P2P loads. I also have a complicated network (8 static IPs) and I need my router to be programmable so I can fully customize it and troubleshoot problems and monitor traffic properly.
I did some more hunting around, and it looks like there's some PCI gizmos running Connexant chipsets; eBay sellers don't normally put the chipset in their auctions unfortunately, so if anyone out there has a PCI ADSL modem with Linux driver source code, please let me know the brand name (and chipset)!!!