Linux source package not properly set up for linuxant hsfmodem installation

[Tim Hull]

As I have a Conexant HSF internal modem included in my laptop, I wanted to use
the LinuxAnt HSF drivers.
They are distributed as a deb package that automatically builds the driver from
source. So, I installed
linux-headers,linux-source, and linux-tree in preparation. I ran dpkg -i
hsfmodem* in the directory
I downloaded the deb to , and I got the following message:

Conexant HSF softmodem driver, version 6.03.00lnxt04082400full

If you need license keys, assistance or more information, please go to:
        http://www.linuxant.com/

When reporting a problem for the first time, please send
us the file generated by "hsfconfig --dumpdiag".

No pre-built modules for: Debian-testing/unstable linux-2.6.8.1-3-386 i686

Trying to automatically build the driver modules...
(this requires a C compiler and proper kernel sources to be installed)
Please ensure that the kernel-headers or kernel-source package is installed.
On Debian, try "apt-get install kernel-headers-2.6.8.1-3-386"

Where is the linux source build directory that matches your running kernel?
[/usr/src/linux]

WARNING: missing file /usr/src/linux/include/linux/autoconf.h
The cause of this is usually a missing or unconfigured
kernel source tree (and sometimes an incorrect directory or symbolic link).

First, ensure that the proper kernel source and compiler packages
from your distribution vendor and/or the community are installed.

The Linux kernel can then be reconfigured by running "make menuconfig"
under the kernel source directory (usually /usr/src/linux).

Verify that the proper options for your system are selected.

Then compile and install your new kernel (for more information about
this procedure, see the README file under the kernel source directory),
reboot the system using the new kernel, and re-run "hsfconfig".
dpkg: error processing hsfmodem (--install):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:

[Matt Zimmerman (mdz)]

You only need the linux-headers package, and the directory used for the build is
/lib/modules/`uname -r`/build

Please send support requests to the mailing list or IRC first, and then file a
bug only when others have confirmed that a bug is present