After installing this package, you'll need to addgroup "bit-babbler"
**OR** put a modified copy of /lib/udev/rules.d/90-bit-babbler.rules
into /etc/udev/rules.d that uses an existing group (e.g., "wheel").
(So long as the file name is identical, the modified rules file in this
directory will override the default rules installed by this package.)

To have your BitBabbler device(s) start feeding entropy to the
kernel at boot:

1. Add the following lines to /etc/rc.d/rc.local:

   # Start BitBabbler TRNG.
   if [ -x /etc/rc.d/rc.seedd ]; then
      . /etc/rc.d/rc.seedd start
   fi

2. Add the following to /etc/rc.d/rc.local_shutdown:

   # Stop BitBabbler TRNG.
   if [ -x /etc/rc.d/rc.seedd ]; then
      . /etc/rc.d/rc.seedd stop
   fi

3. Make sure the execute bit is set (chmod) for
   /etc/rc.d/rc.local
   /etc/rc.d/rc.local_shutdown
   /etc/rc.d/rc.seedd