incuriosito dal prezzo (per soli 4.5$) ho acquistato queta webcam queste le caratteristiche che a prima vista sembrano valide

Features:
High definition CMOS color sensor
Auto exposure
Auto white balance
Supports Net Meeting, MSN Messenger, yahoo Messenger, AOL and other instant messaging tools

Parameters:
Video: 1.0M pixels, 1280 x 1024 resolution
Image: 10.0M pixels, 3648 x 2736 resolution
With 4 white light LED and 3 infrared LED
Switch control for white LED, infrared LED, and both
Cable length: approx. 110cm
Tripod: approx. 13cm in length
Interface: USB 2.0

tutto infoiato la collega alla mia Mandriva 2009.1 kernel 2.6.29.6-desktop-2mnb
non succede nulla si accendono solo 4 led x illuminare

[root@spearow gengar]# lsusb
Bus 001 Device 003: ID 0409:0059 NEC Corp. HighSpeed Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 004: ID 0c45:6130 Microdia PC Camera (SN9C120)
Bus 002 Device 002: ID 062a:0102 Creative Labs
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

almeno la webcam viene riconosciuta

usbcore: registered new interface driver sn9c102
[root@spearow gengar]# lsmod | grep sn9c102
sn9c102 140548 0
videodev 40320 2 sn9c102,gspca_main
usbcore 179280 9 sn9c102,gspca_sonixb,gspca_main,usblp,uhci_hcd,ohci_hcd,ehci_hcd,usbhid

il driver caricato

[root@spearow gengar]# ls /dev/video*
ls: impossibile accedere a /dev/video*: No such file or directory
ma il device non creato

attaccandola e staccandola ottengo

[root@spearow gengar]# dmesg | tail
usb 2-4: new full speed USB device using ohci_hcd and address 4
usb 2-4: New USB device found, idVendor=0c45, idProduct=6130
usb 2-4: New USB device strings: Mfr=0, Product=1, SerialNumber=0
usb 2-4: Product: USB camera
usb 2-4: configuration #1 chosen from 1 choice
sn9c102: V4L2 driver for SN9C1xx PC Camera Controllers v1:1.47pre49
usb 2-4: SN9C120 PC Camera Controller detected (vid:pid 0x0C45:0x6130)
usb 2-4: MI-0343 image sensor detected
usb 2-4: Bridge not supported
usbcore: registered new interface driver sn9c102

ho letto all'inizio dell'anno un'altra discussinone con questi driver e con quelli gspca ma non riesco a farla funzionare
perchè non si crea la directory /dev/video*