added chip select and added falling/rising edge

Author: Thomas Preston

CHANGELOG

@@ -1,9 +1,14 @@
 Change Log
 ==========
 
+v2.1.0
+------
+- Added IODIR_FALLING_EDGE and IODIR_RISING_EDGE (pifacecommon v3.1.1).
+- Added `bus` and `chip_select` optional arguments to init.
+
 v2.0.3
 ------
-- Added support for interrupts from multiple boards.
+- Interrupts now work for multiple boards.
 
 v2.0.2
 ------

pifacedigitalio/__init__.py

@@ -15,5 +15,11 @@
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
-from pifacecommon.interrupts import (IODIR_ON, IODIR_OFF, IODIR_BOTH)
+from pifacecommon.interrupts import (
+    IODIR_FALLING_EDGE,
+    IODIR_RISING_EDGE,
+    IODIR_ON,
+    IODIR_OFF,
+    IODIR_BOTH,
+)
 from .core import *

pifacedigitalio/core.py

@@ -5,8 +5,8 @@
 import pifacecommon
 
 # /dev/spidev<bus>.<chipselect>
-SPI_BUS = 0
-SPI_CHIP_SELECT = 0
+DEFAULT_SPI_BUS = 0
+DEFAULT_SPI_CHIP_SELECT = 0
 
 # some easier to remember/read values
 OUTPUT_PORT = pifacecommon.core.GPIOA
@@ -115,14 +115,20 @@ def __init__(self, board_num=0):
         super(InputEventListener, self).__init__(INPUT_PORT, board_num)
 
 
-def init(init_board=True):
+def init(init_board=True,
+         bus=DEFAULT_SPI_BUS,
+         chip_select=DEFAULT_SPI_CHIP_SELECT):
     """Initialises all PiFace Digital boards.
 
     :param init_board: Initialise each board (default: True)
     :type init_board: boolean
+    :param bus: SPI bus /dev/spidev<bus>.<chipselect> (default: {bus})
+    :type bus: int
+    :param chip_select: SPI bus /dev/spidev<bus>.<chipselect> (default: {chip})
+    :type chip_select: int
     :raises: :class:`NoPiFaceDigitalDetectedError`
-    """
-    pifacecommon.core.init(SPI_BUS, SPI_CHIP_SELECT)
+    """.format(bus=DEFAULT_SPI_BUS, chip=DEFAULT_SPI_CHIP_SELECT)
+    pifacecommon.core.init(bus, chip_select)
 
     if init_board:
          # set up each board

pifacedigitalio/version.py

@@ -1 +1 @@
-__version__ = '2.0.3'
+__version__ = '2.1.0'