gphoto2 and gtkam: permission problems?

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

I'm having trouble using gphoto2 and gtkam -- they can't find the
camera (a Nikon D70s).  ktruss makes me think it's a permission
problem, and indeed if I run as root it all just works.  However, it
doesn't work if I run as smb, even though I've chowned /dev/ugen1.*
and /dev/usb1 to smb.  (I have a UPS on ugen0.)


                --Steve Bellovin, http://www.cs.columbia.edu/~smb