[hsflinux] Invalid module format for 2.6.5-gentoo-r1

[Steven]

I have a US Robotics 56K PCI Faxmodem 5660A, and want to get it working 
with my 2.6.5 kernel.  I'm running Gentoo, and am having incredible 
trouble getting this to work.  This is my fifth try using different 
methods, and it's the farthest I've gotten ->


I downloaded hsfmodem-6.03.00lnxt04061800full.tar.gz, installed, and 
ran hsfconfig.  It compiled fine, but then this:


Trying to automatically build the driver modules...
(this requires a C compiler and proper kernel sources to be installed)

Where is the linux source build directory that matches your running 
kernel?
[/lib/modules/2.6.5-gentoo-r1/build]

WARNING: the kernel version (2.6.5-gentoo) defined in
/lib/modules/2.6.5-gentoo-r1/build/include/linux/version.h
does not match the currently running kernel (2.6.5-gentoo-r1)
The cause of this problem is an incorrect kernel source path.
Please check that /lib/modules/2.6.5-gentoo-r1/build points to the 
right tree.
The cause of this is usually a missing or unconfigured
kernel source tree (and sometimes an incorrect directory or symbolic 
link).

However, proper /boot/config-2.6.5-gentoo-r1 was found.
Would you like to try using it (in a temporary kernel tree)? [yes]

Building modules for kernel 2.6.5-gentoo, using source directory
/usr/src/linux-2.6.5-gentoo-cnxttmp27167. Please wait...
done.

ERROR: hsf driver not active


Upon running modprobe /dev/ttySHSF, this came out:


WARNING: Error inserting hsfsoar 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfsoar.ko): Invalid module format
WARNING: Error inserting hsfosspec 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfosspec.ko): Invalid module format
WARNING: Error inserting hsfengine 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfengine.ko): Invalid module format
WARNING: Error inserting hsfserial 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfserial.ko): Invalid module format
FATAL: Error inserting hsfpcibasic2 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfpcibasic2.ko): Invalid module 
format
WARNING: Error inserting hsfsoar 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfsoar.ko): Invalid module format
WARNING: Error inserting hsfosspec 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfosspec.ko): Invalid module format
WARNING: Error inserting hsfengine 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfengine.ko): Invalid module format
WARNING: Error inserting hsfserial 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfserial.ko): Invalid module format
FATAL: Error inserting hsfmc97ich 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfmc97ich.ko): Invalid module 
format
WARNING: Error inserting hsfsoar 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfsoar.ko): Invalid module format
WARNING: Error inserting hsfosspec 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfosspec.ko): Invalid module format
WARNING: Error inserting hsfengine 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfengine.ko): Invalid module format
WARNING: Error inserting hsfserial 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfserial.ko): Invalid module format
FATAL: Error inserting hsfmc97via 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfmc97via.ko): Invalid module 
format
WARNING: Error inserting hsfsoar 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfsoar.ko): Invalid module format
WARNING: Error inserting hsfosspec 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfosspec.ko): Invalid module format
WARNING: Error inserting hsfengine 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfengine.ko): Invalid module format
WARNING: Error inserting hsfserial 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfserial.ko): Invalid module format
FATAL: Error inserting hsfmc97ali 
(/lib/modules/2.6.5-gentoo-r1/misc/hsfmc97ali.ko): Invalid module 
format

Any clues why it would compile invalid modules?  Thanks for any help,
Steven Schlansker