Merge pull request #60 from rianadon/patch-1

Add method for reading GPIO Interrupt flag

Author: jepler

adafruit_seesaw/seesaw.py

@@ -222,6 +222,12 @@ def set_GPIO_interrupts(self, pins, enabled):
         else:
             self.write(_GPIO_BASE, _GPIO_INTENCLR, cmd)
 
+    def get_GPIO_interrupt_flag(self, delay=0.008):
+        """Read and clear GPIO interrupts that have fired"""
+        buf = bytearray(4)
+        self.read(_GPIO_BASE, _GPIO_INTFLAG, buf, delay=delay)
+        return struct.unpack(">I", buf)[0]
+
     def analog_read(self, pin):
         """Read the value of an analog pin by number"""
         buf = bytearray(2)