@@ -0,0 +1,16 @@
+from exceptions import InvalidChannelException
+import os.path
+
+_ADC_PREFIX = '/proc'
+_N_PINS= 6
+_ADC_PINS = set(('adc%s' % i for i in xrange(_N_PINS)))
+
+
+def _get_path(id_):
+    if id_ in _ADC_PINS:
+        return os.path.join(_ADC_PREFIX, id_)
+    raise InvalidChannelException
+
+def analogRead(channel):
+    with open(_ADC_PREFIX % channel, 'r') as f:
+        return "%s" % f.read(32)
@@ -0,0 +1,3 @@
+class InvalidChannelException(KeyError):
+    """The channel sent was invalid."""
+    pass
@@ -2,11 +2,10 @@
 #
 # io test code for pcDuino ( http://www.pcduino.com )
 #
+from exceptions import InvalidChannelException
 __all__ = ['HIGH', 'LOW', 'INPUT', 'OUTPUT','digitalWrite', 'digitalRead', "pinMode"]
 
-_GPIO_PINS = ('gpio0','gpio1','gpio2','gpio3','gpio4','gpio5','gpio6','gpio7',
-                'gpio8', 'gpio9', 'gpio10', 'gpio11', 'gpio12', 'gpio13',
-                'gpio14', 'gpio15', 'gpio16', 'gpio17', 'gpio18', 'gpio19')
+_GPIO_PINS = set(('gpio%s' % i for i in xrange(20)))
 
 _PIN_FD_PATH = '/sys/devices/virtual/misc/gpio/pin/%s'
 _MODE_FD_PATH = '/sys/devices/virtual/misc/gpio/mode/%s'
@@ -15,30 +14,26 @@
 INPUT = 0
 OUTPUT = 1
 
-class InvalidChannelException(Exception):
-    """The channel sent is invalid on pcDuino board """
-    pass
-
-def _GetValidId(channel):
+def _get_valid_id(channel):
     if channel in _GPIO_PINS:
         return channel
     else:
         raise InvalidChannelException
 
-def digitalWrite(channel, value):
+def digital_write(channel, value):
     """Write to a GPIO channel"""
-    id = _GetValidId(channel)
+    id = _get_valid_id(channel)
     with open(_PIN_FD_PATH % id, 'w') as f:
         f.write('1' if value == HIGH else '0')
 
-def digitalRead(channel):
+def digital_read(channel):
     """Read from a GPIO channel"""
-    id = _GetValidId(channel)
+    id = _get_valid_id(channel)
     with open(_PIN_FD_PATH % id, 'r') as f:
         return f.read(1) == '1'
 
-def pinMode(channel, mode):
+def pin_mode(channel, mode):
     """ Set Mode of a GPIO channel """
-    id = _GetValidId(channel)
+    id = _get_valid_id(channel)
     with open(_MODE_FD_PATH % id, 'w') as f:
         f.write('0' if mode == INPUT else '1')
@@ -1,7 +1,2 @@
-_ADC_PREFIX = '/proc/adc'
-_N_PINS= 6
-
-
-def analogRead(channel):
-    with open(_ADC_PREFIX % id, 'r') as f:
-        return f.read(1)
+def digitalWrite(channel, value):
+    pass
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+class InvalidChannelException(KeyError):`
	`2`	`+ """The channel sent was invalid."""`
	`3`	`+ pass`