$ lsusb
Bus 001 Device 019: ID 0572:1301 Conexant Systems (Rockwell), Inc.

Olitec ne fait pas de pilote pour Linux.

Il parait qu'il fonctionne sous Linux: http://www.linuxant.com/drivers/hsf/index.php

Recuperer le “.deb” par là: http://linux.dell.com/files/ubuntu/modem-drivers/hsf/

Installer les headers de son kernel:

# apt-get install linux-headers-`uname -r

Installons… (en compilant):

# dpkg -i hsfmodem_7.60.00.18oem_i386.deb
(Lecture de la base de données... 127122 fichiers et répertoires déjà installés.)
Préparation du remplacement de hsfmodem 7.60.00.18oem (en utilisant hsfmodem_7.60.00.18oem_i386.deb) ...
Warning: Module snd_hda_intel is in use
Dépaquetage de la mise à jour de hsfmodem ...
Paramétrage de hsfmodem (7.60.00.18oem) ...
Conexant HSF softmodem driver, version 7.60.00.18oem

If you need 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-4.0 linux-2.6.18-6-686 i686-SMP

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

Building modules for kernel 2.6.18-6-686, using source directory
/lib/modules/2.6.18-6-686/build. Please wait...
Warning: Module snd_hda_intel is in use
done.

Warning: no device detected by hsf driver - HDA modems may require reboot

Note: kernel module snd-via82xx-modem overridden by hsfmc97via
Note: kernel module snd-intel8x0m overridden by hsfmc97ich hsfmc97sis
Note: kernel module snd-atiixp-modem overridden by hsfmc97ati

Et alors ?

# lsmod | grep hsf
hsfusbcd2              65352  0
hsfmc97sis             67448  0
hsfmc97ati             66136  0
hsfmc97ali             72736  0
hsfmc97via             68576  0
hsfmc97ich             70808  0
hsfpcibasic2           66808  0
hsfserial              23460  7 hsfusbcd2,hsfmc97sis,hsfmc97ati,hsfmc97ali,hsfmc97via,hsfmc97ich,hsfpcibasic2
hsfengine            1265612  8 hsfusbcd2,hsfmc97sis,hsfmc97ati,hsfmc97ali,hsfmc97via,hsfmc97ich,hsfpcibasic2,hsfserial
hsfosspec             101352  9   hsfusbcd2,hsfmc97sis,hsfmc97ati,hsfmc97ali,hsfmc97via,hsfmc97ich,hsfpcibasic2,hsfserial,hsfengine
hsfsoar                86280  7 hsfusbcd2,hsfmc97sis,hsfmc97ati,hsfmc97ali,hsfmc97via,hsfmc97ich,hsfpcibasic2
usbcore               112644  9 hsfusbcd2,hsfosspec,pl2303,usbserial,usbhid,usb_storage,ehci_hcd,ohci_hcd

Mouai…

$ ls -lart /dev/
 lrwxrwxrwx  1 root root            8 2008-03-06 13:33 modem -> ttySHSF0

Ah tiens ?