Tabs to four spaces

Author: Kevin Townsend

Adafruit_MCP230xx/Adafruit_MCP230xx.py

@@ -39,7 +39,7 @@
 class Adafruit_MCP230XX(object):
     OUTPUT = 0
     INPUT = 1
-    
+
     def __init__(self, address, num_gpios):
         assert num_gpios >= 0 and num_gpios <= 16, "Number of GPIOs must be between 0 and 16"
         self.i2c = Adafruit_I2C(address=address)
@@ -58,7 +58,7 @@ def __init__(self, address, num_gpios):
             self.direction |= self.i2c.readU8(MCP23017_IODIRB) << 8
             self.i2c.write8(MCP23017_GPPUA, 0x00)
             self.i2c.write8(MCP23017_GPPUB, 0x00)
-    
+
     def _changebit(self, bitmap, bit, value):
         assert value == 1 or value == 0, "Value is %s must be 1 or 0" % value
         if value == 0:
@@ -82,12 +82,12 @@ def pullup(self, pin, value):
         if self.num_gpios <= 16:
             lvalue = self._readandchangepin(MCP23017_GPPUA, pin, value)
             if (pin < 8):
-                return 
+                return
             else:
                 return self._readandchangepin(MCP23017_GPPUB, pin-8, value) << 8
 
     # Set pin to either input or output mode
-    def config(self, pin, mode):        
+    def config(self, pin, mode):
         if self.num_gpios <= 8:
             self.direction = self._readandchangepin(MCP23017_IODIRA, pin, mode)
         if self.num_gpios <= 16:
@@ -113,7 +113,7 @@ def output(self, pin, value):
 
         self.outputvalue = self._readandchangepin(MCP23017_IODIRA, pin, value, self.outputvalue)
         return self.outputvalue
-        
+
     def input(self, pin):
         assert pin >= 0 and pin < self.num_gpios, "Pin number %s is invalid, only 0-%s are valid" % (pin, self.num_gpios)
         assert self.direction & (1 << pin) != 0, "Pin %s not set to input" % pin
@@ -124,35 +124,35 @@ def input(self, pin):
             value |= self.i2c.readU8(MCP23017_GPIOB) << 8
         return value & (1 << pin)
 
-	def readU8(self):
-		result = self.i2c.readU8(MCP23008_OLATA)
-		return(result)
+    def readU8(self):
+        result = self.i2c.readU8(MCP23008_OLATA)
+        return(result)
 
-	def readS8(self):
-		result = self.i2c.readU8(MCP23008_OLATA)
-		if (result > 127): result -= 256
-		return result
+    def readS8(self):
+        result = self.i2c.readU8(MCP23008_OLATA)
+        if (result > 127): result -= 256
+        return result
 
-	def readU16(self):
-		assert self.num_gpios >= 16, "16bits required"
-		lo = self.i2c.readU8(MCP23017_OLATA)
-		hi = self.i2c.readU8(MCP23017_OLATB)
-		return((hi << 8) | lo)
+    def readU16(self):
+        assert self.num_gpios >= 16, "16bits required"
+        lo = self.i2c.readU8(MCP23017_OLATA)
+        hi = self.i2c.readU8(MCP23017_OLATB)
+        return((hi << 8) | lo)
 
-	def readS16(self):
-		assert self.num_gpios >= 16, "16bits required"
-		lo = self.i2c.readU8(MCP23017_OLATA)
-		hi = self.i2c.readU8(MCP23017_OLATB)
-		if (hi > 127): hi -= 256
-		return((hi << 8) | lo)
+    def readS16(self):
+        assert self.num_gpios >= 16, "16bits required"
+        lo = self.i2c.readU8(MCP23017_OLATA)
+        hi = self.i2c.readU8(MCP23017_OLATB)
+        if (hi > 127): hi -= 256
+        return((hi << 8) | lo)
 
-	def write8(self, value):
-		self.i2c.write8(MCP23008_OLATA, value)
+    def write8(self, value):
+        self.i2c.write8(MCP23008_OLATA, value)
 
-	def write16(self, value):
-		assert self.num_gpios >= 16, "16bits required"
-		self.i2c.write8(MCP23017_OLATA, value & 0xFF)
-		self.i2c.write8(MCP23017_OLATB, (value >> 8) & 0xFF)        
+    def write16(self, value):
+        assert self.num_gpios >= 16, "16bits required"
+        self.i2c.write8(MCP23017_OLATA, value & 0xFF)
+        self.i2c.write8(MCP23017_OLATB, (value >> 8) & 0xFF)
 
 # RPi.GPIO compatible interface for MCP23017 and MCP23008
 
@@ -174,27 +174,27 @@ def output(self, pin, value):
         self.chip.output(pin, value)
     def pullup(self, pin, value):
         self.chip.pullup(pin, value)
-        
+
 
 if __name__ == '__main__':
     # ***************************************************
     # Set num_gpios to 8 for MCP23008 or 16 for MCP23017!
     # ***************************************************
     mcp = Adafruit_MCP230XX(address = 0x20, num_gpios = 8) # MCP23008
     # mcp = Adafruit_MCP230XX(address = 0x20, num_gpios = 16) # MCP23017
-	
+
     # Set pins 0, 1 and 2 to output (you can set pins 0..15 this way)
     mcp.config(0, mcp.OUTPUT)
     mcp.config(1, mcp.OUTPUT)
     mcp.config(2, mcp.OUTPUT)
-	
+
     # Set pin 3 to input with the pullup resistor enabled
     mcp.config(3, mcp.INPUT)
     mcp.pullup(3, 1)
-    
+
     # Read input pin and display the results
     print "Pin 3 = %d" % (mcp.input(3) >> 3)
-	
+
     # Python speed test on output 0 toggling at max speed
     print "Starting blinky on pin 0 (CTRL+C to quit)"
     while (True):