I have written a Linux device driver for General Instruments SB1000
(internal cable modem) aka internal SURFboard.
It is still a beta release but it has been running smoothly here on
kernel version 2.0.30 for about a week.
The source files (together with my ppp configuration to run it and
a short README file) are in:
http://www.jacksonville.net/~fventuri/sb1000-1.1.1.tar.gz
For any info, question, etc, please email me at:
mailto:fventuri@mediaone.net
Good luck,
Franco Venturi
Motorola has (Aug'98) gotten out of the consumer modem market (except "software modems" (winmodems)).