(wrong) You need the device driver
(correct) You need to be root to execute commands
  Following lines mean good to work:
   /netbsd: ugen0 at uhub1 port 8
   /netbsd: ugen0: Realtek RTL2838UHIDIR, rev 2.00/1.00, add
fixes some path issues.
Add bt (back trace) of Segmentation Fault on NetBSD/amd64 6.1.4
Add info if libusb1 is compiled with CFLAGS+= -g.
set special perms