Mounting Digital Camera - port ugen1 (generic USB)

[Agresti Ulisse <lss.grs%gmail.com@localhost>]

$ tail -f /var/log/messages
Mar 12 20:03:15 Host-001 dhclient: No working leases in persistent database - sleeping.
Mar 12 21:07:25 Host-001 /netbsd: ugen1 at uhub6 port 1
Mar 12 21:07:25 Host-001 /netbsd:



Mar 12 21:07:25 Host-001 /netbsd: ugen1: Canon Inc. Canon Digital Camera, rev 2.00/0.02, addr 3

hi,
I'm running NETBSD 5.1 with generic Kernel. I'm fairly new to *bsd.
I tried mounting /dev/ugen1 as well as /dev/ugen.1, etc.  I also tried /dev/usb. 
Each of them complains that a block device is required.  

You know how  to solve  problem. ?
regards,