if [[ -d /etc/hotplug ]] ; then
  cat <<-EOF
	if your kernel contains any usb camera modules,
	you may want to blacklist the usb module for your camera,
	so that it can be controlled by libgphoto2.
	add the appropriate module name to /etc/hotplug/blacklist
  	check the documentation
	check the script /etc/hotplug/usb/usbcam for correctness
	EOF
fi
