GSPCA and Creative Webcam NX

[Steph]

Hello,

I try to use my Creative Webcam NX Ultra webcam on my hardy box, but
most of the time (worked one time), GSPCA fails and says :

$ modprobe gspca
[58344.582873]
/build/buildd/linux-ubuntu-modules-2.6.24-2.6.24/debian/build/build-generic/media/gspcav1/gspca_core.c:
gspca driver 01.00.20 registered
[58344.607565]
/build/buildd/linux-ubuntu-modules-2.6.24-2.6.24/debian/build/build-generic/media/gspcav1/gspca_core.c:
init isoc: usb_submit_urb(0) ret -28


I tried also to use easycam, but it doesn't help better, falling in :

steph at gropaf:~$ lauchcam2
...
rm -r -f drivers/usb/*.o drivers/usb/.spcadecoder.o.cmd \
    drivers/usb/.spca5xx.o.cmd  *.o *.ko *.mod.* .[a-z]* core *.i
mkdir -p /lib/modules/2.6.24-17-generic/kernel/drivers/usb/media/
rm -f /lib/modules/2.6.24-17-generic/kernel/drivers/usb/media/spca50x.ko
rm -f /lib/modules/2.6.24-17-generic/kernel/drivers/usb/media/et61x.ko
install -c -m 0644 spca5xx.ko
/lib/modules/2.6.24-17-generic/kernel/drivers/usb/media/
install: can't evaluate `spca5xx.ko': Aucun fichier ou dossier de ce type
make: *** [install] Erreur 1

in fact, in /lib/modules/2.6.24-17-generic/kernel/drivers/usb/media/, I
only have gspca.ko ...

Thank you for help & feedback !!