From d3c3015fc82efe11521e41dc4b696ae396474e1d Mon Sep 17 00:00:00 2001
From: Marc Bonnici <marc.bonnici@arm.com>
Date: Thu, 3 Aug 2017 12:13:48 +0100
Subject: [PATCH] Instrument/MeasurementCSV: Add support for recording sample
 rate.

If performing post processing on a MeasurementCsv file, if a timestamp
is not available then the recorded sample rate can be used as a
substitute.
---
 devlib/instrument/__init__.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/devlib/instrument/__init__.py b/devlib/instrument/__init__.py
index 46f9c3e..9f8ac00 100644
--- a/devlib/instrument/__init__.py
+++ b/devlib/instrument/__init__.py
@@ -143,9 +143,10 @@ class Measurement(object):
 
 class MeasurementsCsv(object):
 
-    def __init__(self, path, channels=None):
+    def __init__(self, path, channels=None, sample_rate_hz=None):
         self.path = path
         self.channels = channels
+        self.sample_rate_hz = sample_rate_hz
         self._fh = open(path, 'rb')
         if self.channels is None:
             self._load_channels()