From f02d742f17eb6bc018b5464d71474a3e63bb90e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Diego=20Elio=20Petten=C3=B2?= <flameeyes@flameeyes.eu>
Date: Sat, 7 Dec 2013 23:50:21 +0000
Subject: Add a new command to dump the identification of the glucometer.

This allows to get the serial number, as well as other details about the glucometer once it's installed.
---
 glucometer.py                       | 12 ++++++++----
 glucometerutils/drivers/otultra2.py | 18 ++++++++++++++++++
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/glucometer.py b/glucometer.py
index baa21ca..d9fbf68 100755
--- a/glucometer.py
+++ b/glucometer.py
@@ -27,6 +27,11 @@ def main():
     '--device', action='store', required=True,
     help='Select the path to the glucometer device.')
 
+  subparsers.add_parser(
+    'info', help='Display information about the meter.')
+  subparsers.add_parser(
+    'zero', help='Zero out the data log of the meter.')
+
   parser_dump = subparsers.add_parser(
     'dump', help='Dump the readings stored in the device.')
   parser_dump.add_argument(
@@ -39,15 +44,14 @@ def main():
     '--set', action='store', nargs='?', const='now', default=None,
     help='Set the date rather than just reading it from the device.')
 
-  reset = subparsers.add_parser(
-    'zero', help='Zero out the data log of the meter.')
-
   args = parser.parse_args()
 
   driver = importlib.import_module('glucometerutils.drivers.' + args.driver)
   device = driver.Device(args.device)
 
-  if args.action == 'dump':
+  if args.action == 'info':
+    print(device.get_information_string())
+  elif args.action == 'dump':
     for reading in device.get_readings():
       print('%s,%.2f,%s' % (reading.timestamp, reading.get_value_as(args.unit),
                             reading.comment))
diff --git a/glucometerutils/drivers/otultra2.py b/glucometerutils/drivers/otultra2.py
index d4db307..4f275ba 100644
--- a/glucometerutils/drivers/otultra2.py
+++ b/glucometerutils/drivers/otultra2.py
@@ -82,7 +82,25 @@ class Device(object):
     line = self.serial_.readline().decode('ascii')
     return self._validate_and_strip_checksum(line)
 
+  def get_information_string(self):
+    """Returns a single string with all the identification information.
+
+    Returns:
+      A string including the serial number, software version, date and time and
+      default unit.
+    """
+    return ('OneTouch Ultra 2 glucometer\n'
+            'Serial number: %s\n'
+            'Software version: %s\n'
+            'Time: %s\n'
+            'Default unit: %s' % (
+              self.get_serial_number(),
+              self.get_version(),
+              self.get_datetime(),
+              self.get_glucose_unit()))
+
   def get_version(self):
+
     """Returns an identifier of the firmware version of the glucometer.
 
     Returns:
-- 
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