ControllerInterface: mixed comments

Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.cpp

@@ -91,6 +91,11 @@ KeyboardMouse::~KeyboardMouse()
 {
   s_keyboard_mouse_exists = false;
 
+  // Independently of the order in which we do these, if we put a breakpoint on Unacquire() (or in
+  // any place in the call stack before this), when refreshing devices from the UI, on the second
+  // attempt, it will get stuck in an infinite (while) loop inside dinput8.dll. Given that it can't
+  // be otherwise be reproduced (not even with sleeps), we can just ignore the problem.
+
   // kb
   m_kb_device->Unacquire();
   m_kb_device->Release();

Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h

@@ -34,6 +34,7 @@ private:
     RelativeMouseState relative_mouse;
   };
 
+  // Keyboard key
   class Key : public Input
   {
   public:
@@ -46,6 +47,7 @@ private:
     const u8 m_index;
   };
 
+  // Mouse button
   class Button : public Input
   {
   public:
@@ -58,6 +60,7 @@ private:
     const u8 m_index;
   };
 
+  // Mouse movement offset axis. Includes mouse wheel
   class Axis : public Input
   {
   public:
@@ -72,6 +75,7 @@ private:
     const u8 m_index;
   };
 
+  // Mouse from window center
   class Cursor : public Input
   {
   public: