VEML6070: Initial Commit

This commit provides a basic driver for the Vishay VEML6070 UV
Sensor. Some functionality might be missing. Binding examples have
not been tested as of now.

Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>

examples/python/veml6070.py

@@ -0,0 +1,52 @@
+#!/usr/bin/python
+# Author: Abhishek Malik <abhishek.malik@intel.com>
+# Copyright (c) 2017 Intel Corporation.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+from __future__ import print_function
+import time, sys, signal, atexit
+from upm import pyupm_veml6070 as veml6070
+
+def main():
+    # Instantiate a Vishay UV Sensor on the I2C bus 0
+    veml6070_sensor = veml6070.VEML6070(0, 0x38);
+
+    ## Exit handlers ##
+    # This function stops python from printing a stacktrace when you hit control-C
+    def SIGINTHandler(signum, frame):
+        raise SystemExit
+
+    # This function lets you run code on exit, including functions from abpdrrt005pg2a5
+    def exitHandler():
+        print("Exiting")
+        sys.exit(0)
+
+    # Register exit handlers
+    atexit.register(exitHandler)
+    signal.signal(signal.SIGINT, SIGINTHandler)
+
+    # Read the value every second and detect the pressure
+    while(1):
+        print("UV Value: {0}".format(veml6070_sensor.getUVIntensity()))
+        time.sleep(1)
+
+if __name__ == '__main__':
+    main()