From b11ab3d06ef7300b5116cb323e96dee7a758b7ee Mon Sep 17 00:00:00 2001
From: Stephen Sun <5379172+stephenxs@users.noreply.github.com>
Date: Thu, 23 Jan 2020 02:07:37 +0800
Subject: [PATCH] [sonic_fan] Add constant for fan direction (#76)

---
 sonic_fan/fan_base.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sonic_fan/fan_base.py b/sonic_fan/fan_base.py
index 6643bfa0c..aced373dd 100644
--- a/sonic_fan/fan_base.py
+++ b/sonic_fan/fan_base.py
@@ -14,6 +14,11 @@
 class FanBase(object):
     __metaclass__ = abc.ABCMeta
 
+    # Possible fan directions (relative to port-side of device)
+    FAN_DIRECTION_INTAKE = "intake"
+    FAN_DIRECTION_EXHAUST = "exhaust"
+    FAN_DIRECTION_NOT_APPLICABLE = "N/A"
+
     def get_num_fans(self):
         """
         Retrieves the number of FANs supported on the device