lib/rubyserial/posix.rb in rubyserial-0.0.1 vs lib/rubyserial/posix.rb in rubyserial-0.1.0

@@ -62,9 +62,23 @@
       raise RubySerial::Exception, RubySerial::Posix::ERROR_CODES[FFI.errno]
     end
     buff.get_bytes(0, i)
   end
 
+  def getbyte
+    buff = FFI::MemoryPointer.new :char, 1
+    i = RubySerial::Posix.read(@fd, buff, 1)
+    if i == -1
+      raise RubySerial::Exception, RubySerial::Posix::ERROR_CODES[FFI.errno]
+    end
+
+    if i == 0
+      nil
+    else
+      buff.read_string.unpack('C').first
+    end
+  end
+
   private
 
   def build_config(baude_rate, data_bits)
     config = RubySerial::Posix::Termios.new
 
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