Linuxant Linux drivers for Conexant chipsets - HCF driver installation      
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HCF driver installation

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Please see the README file for general information.


Remove any old HCF modem drivers, either manually or by running "rpm -e hcfpcimodem" ("rpm -e hcfusbmodem" for the USB version) or "make uninstall" if using the RPM or tar versions of this package respectively.

Note: if you had an older version of this package, it might have been installed under the previous "hcflinmodem" name. In that case, run "rpm -e hcflinmodem" (or "make uninstall" in the *old* package tree).


If your Linux distribution supports the RPM Package Manager, it is easiest to install the binary RPM package with METHOD A. If your system is based on Debian (DPKG), METHOD B is for you. METHOD C is for distributions without RPM or DPKG support, or those who prefer not to use packages.

If you obtained the driver as a ".zip" file, extract it first with "unzip <filename>.zip".


If you have obtained the driver package in RPM format:

1. install the rpm with "rpm -i hcfpcimodem-{version}.{arch}.rpm" ("rpm -i hcfusbmodem-{version}.{arch}.rpm" for the USB version)

2. if necessary, run "hcfpciconfig" ("hcfusbconfig" for the USB version) to complete the installation, enter license information, or to change your modem's configuration.

If you need to rebuild the generic RPM from source, you can get the TAR package and run: "rpmbuild -tb hcf*modem-{version}.tar.gz" (if rpmbuild is not found, you might have to install the rpm-build package or if you have an older RPM version, try "rpm --rebuild ..."). If you want a pre-compiled package for the currently running kernel, you can try "make rpmprecomp" in the top directory.


If you have obtained the driver package in DEBIAN format:

1. install the package with "dpkg -i hcfpcimodem_{version}_{arch}.deb", ("dpkg -i hcfusbmodem_{version}_{arch}.deb" for the USB version) if apt-get or some other tool hasn't already done it for you.

2. if necessary, run "hcfpciconfig" ("hcfusbconfig" for the USB version) to complete the installation, enter license information, or to change your modem's configuration.

If you need to rebuild the Debian generic package from source, you can get the TAR package, and from the top directory run: "make debdist". A pre-compiled DEB package for the currently running kernel can be built using "make debprecomp" instead.


If you have obtained the driver package in tar format:

1. extract the package with "tar -xzf hcfpcimodem-{version}.tar.gz" ("tar -xzf hcfusbmodem-{version}.tar.gz" for the USB version)

2. change to the package directory with "cd hcfpcimodem-{version}" ("cd hcfusbmodem-{version}" for the USB version)

3. run "make install" from the top of the package directory.

4. run "hcfpciconfig" ("hcfusbconfig" for the USB version) to complete the installation and configure your modem.

(Alternatively to this whole procedure you may generate RPMS from the tar package using rpmbuild -ta hcf{pci|usb}modem-{version}.tar.gz")


If an error occurred during installation, please see the sections 'BUGS' and 'REPORTING PROBLEMS' below.

Once the modem is installed and configured, you may access it as /dev/ttySHCF0 (or ttySHCFUSB0 for the USB version). Additionally, you can use it via the symbolic link /dev/modem (equivalent to ttySHCF0 / ttySHCFUSB0). If you have more than one HCF modem, the second will be available as /dev/ttySHCF1, the third as /dev/ttySHCF2 and so forth.

Please review the permissions on the device nodes with "ls -l" to ensure that they are adequate for your system.

The "hcfpciconfig" command ("hcfusbconfig" for the USB version) can be used to change certain modem configuration options or recompile (generic packages only) the kernel modules after installation. Run "hcfpciconfig --help" ("hcfusbconfig --help" for the USB version) for usage information.


To enable your modem's full functionality (high-speed 56k data and FAX), a license registration key must be obtained from Linuxant and entered with "hcfpciconfig --license" ("hcfusbconfig --license" for the USB version).

Without a proper license key, the modem can only operate in FREE mode, limited to a maximum speed of 14.4Kbps (V.32bis) and the FAX functionality will not be available.


With "hcfpciconfig --region" ("hcfusbconfig --region" for the USB version) you may select another region (country) supported by your modem.


The modem drivers can be manually unloaded using the "hcfpcistop" ("hcfusbstop" for the USB version) command.


If your modem uses a chipset supported by the drivers but isn't recognized by the driver, please contact


See the included document 100498D_RM_HxF_Released.pdf (viewable with Adobe Acrobat reader or other PDF readers).


If for any reason you wish to un-install the HCF drivers from your system, simply run the "hcfpciconfig --uninstall" ("hcfusbconfig --uninstall" for the USB version) command in a root shell.


If you require license keys, assistance or need more information, go to:

Conexant Systems neither distributes nor maintains this package. PLEASE DO NOT CONTACT CONEXANT REGARDING THIS SOFTWARE!!!


A list of currently known problems is included in the file "BUGS".


If you experience sudden disconnects or bad connections, please check the last call status information, which can be obtained with the AT#UG command or "cat /proc/driver/hcf/0/lastcallstatus". Alternatively the driver can be configured to automatically log this data upon carrier loss by adding the "loglastcallstatus=1" parameter to the "options hcfserial" line in /etc/modules.conf or /etc/modprobe.conf.


Additional problem reports or patches may be sent to:

Enclosing the output of "hcfpciconfig --dumpdiag" ("hcfusbconfig --dumpdiag" for the USB version) and the last call status information if pertinent (see above) in your report can greatly facilitate problem resolution.



User comment:

Hi! I am a Linux Beginner and installed the SuSE-Linux 8.2 version on my system a couple of days ago. At first my HCFPCI-modem (bought the computer system from Gateway 3 years ago...) did not work - of course there were no drivers installed as Linux could not identify the modem during installation. I did not expect at all that it would be possible to get the modem working, especially as SuSE does not support so called "winmodems". Anyway thanks to the devicemanager in win98 I knew that Conexant was the manufacturer. To make a long story short: I found your website , downloaded "hcfpcimodem-0.99lnxtbeta03042700k2.4.20_4GB-1suse.i586.rpm" and installed it successfully !!!! Juhu ! The modem works brilliantly and I am really happy that you also support the Linux operating system. so once again: thank you very much and have a nice day greetings from Germany

Hans-Peter Muller

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