libcros: Watch for display brightness changes.

load.cc

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cstdio>
 #include <dlfcn.h>
 #include <string.h>
 #include <vector>
 
 #include <base/basictypes.h>
 
+#include "chromeos_brightness.h" // NOLINT
 #include "chromeos_cros_api.h" // NOLINT
 #include "chromeos_cryptohome.h" // NOLINT
 #include "chromeos_imageburn.h"  //NOLINT
 #include "chromeos_input_method.h"  // NOLINT
 #include "chromeos_input_method_ui.h"  // NOLINT
 #include "chromeos_keyboard.h"  // NOLINT
 #include "chromeos_login.h"  // NOLINT
 #include "chromeos_mount.h"  // NOLINT
 #include "chromeos_network.h"  // NOLINT
 #include "chromeos_power.h"  // NOLINT
@@ skipping 289 matching lines @@
 
 // Syslogs
 DECL_FUNC_2(GetSystemLogs, LogDictionaryType*, FilePath*, const std::string&);
 
 // System
 DECL_FUNC_0(GetTimezoneID, std::string);
 DECL_FUNC_1(SetTimezoneID, void, const std::string& id);
 DECL_FUNC_0(GetMachineInfo, MachineInfo*);
 DECL_FUNC_1(FreeMachineInfo, void, MachineInfo*);
 
+// Brightness
+DECL_FUNC_2(MonitorBrightness,
+            BrightnessConnection,
+            BrightnessMonitorFunction,
+            void*);
+DECL_FUNC_1(DisconnectBrightness, void, BrightnessConnection);
+
 
 char const * const kCrosDefaultPath = "/opt/google/chrome/chromeos/libcros.so";
 
 // Initializes the variable by looking up the function by |name|.
 // This macro uses the variable 'handle' and 'error_string'.
 #define INIT_FUNC(name) \
   name = name##Type(::dlsym(handle, "ChromeOS"#name)); \
   if (!name) { \
     error_string += "Couldn't load: "#name","; \
   }
@@ skipping 230 matching lines @@
 
   // Syslogs
   INIT_FUNC(GetSystemLogs);
 
   // System
   INIT_FUNC(GetTimezoneID);
   INIT_FUNC(SetTimezoneID);
   INIT_FUNC(GetMachineInfo);
   INIT_FUNC(FreeMachineInfo);
 
+  // Brightness
+  INIT_FUNC(MonitorBrightness);
+  INIT_FUNC(DisconnectBrightness);
+
   return error_string.empty();
 }
 
 }  // namespace chromeos