What driver are you trying to use?
A quick web search for this software modem chipset
turned up drivers for only a few rather old 2.4.x
kernels, and no 2.6.x kernels. Suse 11 ships with
a 2.6.25 or so, doesn't it?
The Motorola website describes a pci card with this
chipset as "compatible" with Linux, so maybe they have
a current driver for it. The page describing the modem is
here:
http://http://www.motorola.com/business/v/index.jsp?vgnextoid=091fdacd69b0a110VgnVCM1000008406b00aRCRD&vgnextchannel=3909676eaea0a110VgnVCM100 0008406b00aRCRD
You might try e-mailing them at:
softmodem@motorola.com
Sorry I can't be more helpful.
--Lawrence