add .clang-format

Change-Id: I6627b5569c2e0f730be7331403218b823a2c622f
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/interfaces.hpp b/interfaces.hpp
index c16d19e..1ebd1cb 100644
--- a/interfaces.hpp
+++ b/interfaces.hpp
@@ -2,29 +2,33 @@
 
 #include <chrono>
 
-
-struct ReadReturn {
+struct ReadReturn
+{
     double value;
     std::chrono::high_resolution_clock::time_point updated;
 
-    bool operator==(const ReadReturn &rhs) const {
+    bool operator==(const ReadReturn &rhs) const
+    {
         return (this->value == rhs.value && this->updated == rhs.updated);
     }
 };
 
-
 /*
  * A ReadInterface is a plug-in for the PluggableSensor and anyone implementing
  * this basically is providing a way to read a sensor.
  */
 class ReadInterface
 {
-    public:
-        ReadInterface() { }
+  public:
+    ReadInterface()
+    {
+    }
 
-        virtual ~ReadInterface() { }
+    virtual ~ReadInterface()
+    {
+    }
 
-        virtual ReadReturn read(void) = 0;
+    virtual ReadReturn read(void) = 0;
 };
 
 /*
@@ -33,29 +37,31 @@
  */
 class WriteInterface
 {
-    public:
-        WriteInterface(int64_t min, int64_t max)
-            : _min(min),
-              _max(max)
-        { }
+  public:
+    WriteInterface(int64_t min, int64_t max) : _min(min), _max(max)
+    {
+    }
 
-        virtual ~WriteInterface() { }
+    virtual ~WriteInterface()
+    {
+    }
 
-        virtual void write(double value) = 0;
+    virtual void write(double value) = 0;
 
-        /*
-         * All WriteInterfaces have min/max available in case they want to error
-         * check.
-         */
-        int64_t getMin(void)
-        {
-            return _min;
-        }
-        int64_t getMax(void)
-        {
-            return _max;
-        }
-    private:
-        int64_t _min;
-        int64_t _max;
+    /*
+     * All WriteInterfaces have min/max available in case they want to error
+     * check.
+     */
+    int64_t getMin(void)
+    {
+        return _min;
+    }
+    int64_t getMax(void)
+    {
+        return _max;
+    }
+
+  private:
+    int64_t _min;
+    int64_t _max;
 };