Merge pull request #8 from ladyada/master

add repeated start support

Author: tannewt

adafruit_mpr121.py

@@ -100,8 +100,8 @@ def _read_register_bytes(self, register, result, length=None):
         if length is None:
             length = len(result)
         with self._i2c:
-            self._i2c.write(bytes([register]), stop=False)
-            self._i2c.readinto(result, start=0, end=length)
+            self._i2c.write_then_readinto(bytes([register]), result,
+                                          in_end=length, stop=False)
 
     def reset(self):
         """Reset the MPR121 into a default state ready to detect touch inputs.

examples/piano.py

@@ -1,6 +1,7 @@
 # MPR121 piano demo.
 # Listens to the first 7 inputs of the MPR121 and plays a middle scale note
 # when an input is touched.  Note only one note is played at a time!
+# For use with microcontrollers or computers with PWM support only!
 # Author: Tony DiCola
 import time
 

requirements.txt

@@ -1,2 +1,2 @@
 Adafruit-Blinka
-adafruit-circuitpython-busdevice
+adafruit-circuitpython-busdevice>=2.2.5