Facter.add('ekeyd_key_present') do
  setcode do
    FileTest.exists?('/sys/kernel/debug/usb/devices') && \
      !(File.read('/sys/kernel/debug/usb/devices') =~ /Product=Entropy Key/).nil?
  end
end
Facter.add('ekeyd_key_present') do
  confine :operatingsystem => %w{Debian}
  setcode do
    !`lsusb 2> /dev/null | grep "Entropy Key"`.empty?
  end
end