command_mode.rb in ruby-xbee-1.2.1

- old
+ new

@@ -30,11 +30,11 @@
       sleep 1
       getresponse   # flush up to +++ response if needed
       # if XBee is already in command mode, there will be no response, so make an explicit
       # AT call to insure an OK response
       @xbee_serialport.write("AT\r")
-      getresponse().strip.chomp if getresponse()
+      getresponse.strip.chomp
     end
 
 =begin rdoc
   Retrieve XBee firmware version
 =end
@@ -121,11 +121,11 @@
 =begin rdoc
   returns the source address of the XBee device - the MY address value
 =end
     def my_src_address
       @xbee_serialport.write("ATMY\r")
-      getresponse.strip.chomp if getresponse
+      getresponse.strip.chomp
     end
 
 =begin rdoc
   sets the 16-bit source address of the XBee device.  The parameter should be a 16-bit hex value.
   The factory default is 0.  By setting the MY src address to 0xffff, 16-bit addressing is disabled
@@ -217,11 +217,11 @@
 =end
     def node_id
       tmp = @xbee_serialport.read_timeout
       @xbee_serialport.read_timeout = read_timeout(:long)
       @xbee_serialport.write("ATNI\r")
-      response = getresponse
+      response = getresponse()
       @xbee_serialport.read_timeout = tmp
       if ( response.nil? )
         return ""
       else
         response.strip.chomp 
@@ -272,11 +272,11 @@
   or 0 to be returned.  If the XBee device has not received any neighboring packet data, the signal strength
   value will be 0
 =end
     def received_signal_strength
       @xbee_serialport.write("ATDB\r")
-      response = getresponse().strip.chomp if getresponse()
+      response = getresponse.strip.chomp
       # this response is an absolute hex value which is in -dBm
       # modify this so it returns actual - dBm value
       dbm = -(response.hex) if response
     end
 
@@ -311,10 +311,10 @@
   :Mark - for 8-bit mark
   :Space - for 8-bit space
 =end
    def parity
      @xbee_serialport.write("ATNB\r")
-     response = getresponse().strip.chomp if getresponse()
+     response = getresponse().strip.chomp
      @paritycodes.key( response.to_i )
    end
 
 =begin rdoc
  sets the parity of the device to one represented by a symbol contained in the parity_type parameter