lib/ssh_scan/os/raspbian.rb in ssh_scan-0.0.20 vs lib/ssh_scan/os/raspbian.rb in ssh_scan-0.0.21

@@ -16,9 +16,14 @@
       def initialize(banner)
         @banner = banner
         @version = Raspbian::Version.new(raspbian_version_guess)
       end
 
+      # Guess Raspbian OS version. Typically, Raspbian banners 
+      # are like "SSH-2.0-Raspbian-something", where something 
+      # is the Raspbian version.
+      # @return [String] version string matched from banner, nil
+      #   if not matched
       def raspbian_version_guess
         return nil if @banner.nil?
         match = @banner.match(/SSH-2.0-Raspbian-(\d+)/)
         return nil if match.nil?
         return match[1]