gphoto2 strange problem

[Fernando Fernández Pedraza]

Hello, 

I can't transfer photos from usb digital cameras with gphoto. The
strange thing is that cameras do get detected, but transfer is not
possible. I do as follows:

# gphoto2 --auto-detect
Modelo                         Puerto
----------------------------------------------------------
Argus DC-1510                  usb:
Argus DC-1510                  usb:002,005
Kodak DX3500                   usb:001,002

# gphoto2 -P
gphoto2: symbol lookup error:
/usr/lib/gphoto2_port/0.5.1/libgphoto2_port_usb.so: undefined symbol:
usb_get_driver_np

Usb scanner and memstick are working OK.
Kernel is kernel.org's 2.6.10, and I've had the same problem with the
latest 2.6.10 with Fedora patches. Gphoto2 is gphoto2-2.1.5-1.1

Any hints?
Thanks in advance.
-- 
** las máquinas son amigas **