updating to_s and docs

CHANGELOG.rdoc

@@ -1,3 +1,9 @@
+=== 2.0.1 / 2009-09-19
+
+* 1 Bugfix
+
+  * Raising an exception when a reader cannot be found.
+
 === 2.0.0 / 2009-08-07
 
 * 2 major enhancements

lib/nfc.rb

@@ -9,7 +9,7 @@
 # library will read RFID tags from an RFID reader.  You should start by reading
 # NFC#find
 class NFC
-  VERSION = '2.0.0'
+  VERSION = '2.0.1'
 
   include Singleton
 

lib/nfc/iso14443a.rb

@@ -18,15 +18,19 @@ def atqa
       abtAtqa.unpack 'C*'
     end
 
+    ###
+    # Get the UID as a hex string
+    def to_s join_string = ''
+      sprintf((['%02x'] * uiUidLen).join(join_string), * uid).upcase
+    end
+
     ###
     # Inspect this tag
     def inspect
-      uid = sprintf((['%02x'] * uiUidLen).join('  '), *self.uid)
-
       string_ary =
         [ "(NFC) ISO14443A Tag",
           " ATQA (SENS_RES): #{sprintf("%02x  %02x", *atqa)}",
-          "    UID (NFCID1): #{uid}",
+          "    UID (NFCID1): #{to_s '  '}",
           "   SAK (SEL_RES): #{sprintf("%02x", btSak)}"
         ]
       if uiAtsLen > 0

test/test_nfc.rb

@@ -32,8 +32,4 @@ def test_infinite_list_passive=
     @nfc.infinite_list_passive = true
     @nfc.infinite_list_passive = false
   end
-
-  def test_poll_mifare
-    thing = @nfc.poll_mifare
-  end
 end