read from eqep position file

Author: pdp7

Adafruit_BBIO/Encoder.py

@@ -138,7 +138,10 @@ def getPosition(self):
     '''
     position_file = "%s/position" % self.base_dir
     print("getPosition(): position_file: {0}".format(position_file))
-    print("getPosition(): TODO: read position_file")
+    position_handle = open(position_file, 'r')
+    print("getPosition(): position_handle: {0}".format(position_handle))
+    position = position_handle.read()
+    print("getPosition(): position: {0}".format(position))
     #return sysfs.kernelFileIO(position_file)
 
   def setFrequency(self,freq):

test/test_rotary.py

@@ -1,8 +1,8 @@
 #!/usr/bin/python
 
 import Adafruit_BBIO.Encoder as Encoder
-
-qep = Encoder.RotaryEncoder(1)
+# A on P8.11 and B on P8.12
+qep = Encoder.RotaryEncoder(2)
 #qep = Encoder.QEP()
 print qep