Fix indentation and trailing whitespaces

Convert every indentation to tab instead of spaces and get rid of mixed
tab/spaces indentations.
Also remove few trailing whitespaces.

Change-Id: Ic4a8f2adcacb99789a403aefe6a16daaffee5cd6
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

10 files changed, 746 insertions, 747 deletions

diff --git a/ahl-binding/CMakeLists.txt b/ahl-binding/CMakeLists.txt
index bd2be0c..042903c 100644
--- a/ahl-binding/CMakeLists.txt
+++ b/ahl-binding/CMakeLists.txt
@@ -19,38 +19,38 @@
 # Add target to project dependency list
 PROJECT_TARGET_ADD(audiohighlevel)
 
-    # Define project Targets
-    ADD_LIBRARY(${TARGET_NAME} MODULE
-        config_entry.cpp
-        role.cpp
-        interrupt.cpp
-        ahl-binding.cpp
-    )
+	# Define project Targets
+	ADD_LIBRARY(${TARGET_NAME} MODULE
+		config_entry.cpp
+		role.cpp
+		interrupt.cpp
+		ahl-binding.cpp
+	)
 
-    # Binder exposes a unique public entry point
-    SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
-        PREFIX "afb-"
-        LABELS "BINDING"
-        LINK_FLAGS  ${BINDINGS_LINK_FLAG}
-        OUTPUT_NAME ${TARGET_NAME}
-    )
+	# Binder exposes a unique public entry point
+	SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
+		PREFIX "afb-"
+		LABELS "BINDING"
+		LINK_FLAGS  ${BINDINGS_LINK_FLAG}
+		OUTPUT_NAME ${TARGET_NAME}
+	)
 
-    # Define target includes
-    TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME}
-        PUBLIC ${GLIB_PKG_INCLUDE_DIRS}
-        ${CMAKE_CURRENT_SOURCE_DIR}
-        ${CMAKE_CURRENT_SOURCE_DIR}/../controller/ctl-lib
-        ${CMAKE_CURRENT_SOURCE_DIR}/../afb-utilities
-    )
+	# Define target includes
+	TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME}
+		PUBLIC ${GLIB_PKG_INCLUDE_DIRS}
+		${CMAKE_CURRENT_SOURCE_DIR}
+		${CMAKE_CURRENT_SOURCE_DIR}/../controller/ctl-lib
+		${CMAKE_CURRENT_SOURCE_DIR}/../afb-utilities
+	)
 
-    # Library dependencies (include updates automatically)
-    # Find package for GLIB does not seem to export
-    TARGET_LINK_LIBRARIES(${TARGET_NAME} 
-        #ahl-policy
+	# Library dependencies (include updates automatically)
+	# Find package for GLIB does not seem to export
+	TARGET_LINK_LIBRARIES(${TARGET_NAME}
+		#ahl-policy
 
 		afb-helpers
-        ctl-utilities
-        ${GLIB_PKG_LIBRARIES}
-        ${link_libraries}
-    )
+		ctl-utilities
+		${GLIB_PKG_LIBRARIES}
+		${link_libraries}
+	)
 
diff --git a/ahl-binding/ahl-binding.cpp b/ahl-binding/ahl-binding.cpp
index 98d36b6..3a16197 100644
--- a/ahl-binding/ahl-binding.cpp
+++ b/ahl-binding/ahl-binding.cpp
@@ -25,7 +25,7 @@
  */
 int ahl_api_create(void*, afb_api_t handle)
 {
-    return ahl_binding_t::instance().preinit(handle);
+	return ahl_binding_t::instance().preinit(handle);
 }
 
 /**
@@ -35,19 +35,19 @@ int ahl_api_create(void*, afb_api_t handle)
  */
 int afbBindingEntry(afb_api_t handle)
 {
-    using namespace std::placeholders;
-    assert(handle != nullptr);
-
-    afb_api_new_api(
-        handle,
-        HL_API_NAME,
-        HL_API_INFO,
-        1,
-        ahl_api_create,
-        nullptr
-    );
-
-    return 0;
+	using namespace std::placeholders;
+	assert(handle != nullptr);
+
+	afb_api_new_api(
+		handle,
+		HL_API_NAME,
+		HL_API_INFO,
+		1,
+		ahl_api_create,
+		nullptr
+	);
+
+	return 0;
 }
 
 /**
@@ -56,7 +56,7 @@ int afbBindingEntry(afb_api_t handle)
  */
 int ahl_api_init(afb_api_t)
 {
-    return ahl_binding_t::instance().init();
+	return ahl_binding_t::instance().init();
 }
 
 /**
@@ -66,7 +66,7 @@ int ahl_api_init(afb_api_t)
  */
 void ahl_api_on_event(afb_api_t, const char* e, struct json_object* o)
 {
-    ahl_binding_t::instance().event(e, o);
+	ahl_binding_t::instance().event(e, o);
 }
 
 /**
@@ -76,7 +76,7 @@ void ahl_api_on_event(afb_api_t, const char* e, struct json_object* o)
  */
 int ahl_api_config_roles(afb_api_t, CtlSectionT*, json_object* o)
 {
-    return ahl_binding_t::instance().parse_roles_config(o);
+	return ahl_binding_t::instance().parse_roles_config(o);
 }
 
 /**
@@ -85,7 +85,7 @@ int ahl_api_config_roles(afb_api_t, CtlSectionT*, json_object* o)
  */
 void ahl_api_get_roles(afb_req_t req)
 {
-    ahl_binding_t::instance().get_roles(req);
+	ahl_binding_t::instance().get_roles(req);
 }
 
 /**
@@ -94,7 +94,7 @@ void ahl_api_get_roles(afb_req_t req)
  */
 void ahl_api_subscribe(afb_req_t req)
 {
-    ahl_binding_t::instance().subscribe(req);
+	ahl_binding_t::instance().subscribe(req);
 }
 
 /**
@@ -103,7 +103,7 @@ void ahl_api_subscribe(afb_req_t req)
  */
 void ahl_api_unsubscribe(afb_req_t req)
 {
-    ahl_binding_t::instance().unsubscribe(req);
+	ahl_binding_t::instance().unsubscribe(req);
 }
 
 /**
@@ -114,17 +114,17 @@ void ahl_api_unsubscribe(afb_req_t req)
  */
 void ahl_api_role(afb_req_t req)
 {
-    role_t* role = (role_t*)req->vcbdata;
-    assert(role != nullptr);
+	role_t* role = (role_t*)req->vcbdata;
+	assert(role != nullptr);
 
-    role->invoke(req);
+	role->invoke(req);
 }
 
 /**
  * @brief Default constructor.
  */
 ahl_binding_t::ahl_binding_t()
-    : handle_{nullptr}
+	: handle_{nullptr}
 {
 }
 
@@ -134,8 +134,8 @@ ahl_binding_t::ahl_binding_t()
  */
 ahl_binding_t& ahl_binding_t::instance()
 {
-    static ahl_binding_t s;
-    return s;
+	static ahl_binding_t s;
+	return s;
 }
 
 /**
@@ -145,26 +145,26 @@ ahl_binding_t& ahl_binding_t::instance()
  */
 int ahl_binding_t::preinit(afb_api_t handle)
 {
-    handle_ = handle;
-
-    try
-    {
-        load_static_verbs();
-        load_controller_configs();
-
-        if (afb_api_on_event(handle_, ahl_api_on_event))
-            throw std::runtime_error("Failed to register event handler callback.");
-
-        if (afb_api_on_init(handle_, ahl_api_init))
-            throw std::runtime_error("Failed to register init handler callback.");
-    }
-    catch(std::exception& e)
-    {
-        AFB_API_ERROR(handle, "%s", e.what());
-        return -1;
-    }
-
-    return 0;
+	handle_ = handle;
+
+	try
+	{
+		load_static_verbs();
+		load_controller_configs();
+
+		if (afb_api_on_event(handle_, ahl_api_on_event))
+			throw std::runtime_error("Failed to register event handler callback.");
+
+		if (afb_api_on_init(handle_, ahl_api_init))
+			throw std::runtime_error("Failed to register init handler callback.");
+	}
+	catch(std::exception& e)
+	{
+		AFB_API_ERROR(handle, "%s", e.what());
+		return -1;
+	}
+
+	return 0;
 }
 
 /**
@@ -172,17 +172,17 @@ int ahl_binding_t::preinit(afb_api_t handle)
  */
 int ahl_binding_t::init()
 {
-    using namespace std::placeholders;
+	using namespace std::placeholders;
 
-    if (afb_api_require_api(handle_, HAL_MGR_API, 1))
-    {
-        AFB_API_ERROR(handle_, "Failed to require '%s' API!", HAL_MGR_API);
-        return -1;
-    }
-    AFB_API_NOTICE(handle_, "Required '%s' API found!", HAL_MGR_API);
+	if (afb_api_require_api(handle_, HAL_MGR_API, 1))
+	{
+		AFB_API_ERROR(handle_, "Failed to require '%s' API!", HAL_MGR_API);
+		return -1;
+	}
+	AFB_API_NOTICE(handle_, "Required '%s' API found!", HAL_MGR_API);
 
-    afb_api_seal(handle_);
-    AFB_API_NOTICE(handle_, "API is now sealed!");
+	afb_api_seal(handle_);
+	AFB_API_NOTICE(handle_, "API is now sealed!");
 
     volume_changed_ = afb_api_make_event(handle_, "volume_changed");
     if(!afb_event_is_valid(volume_changed_))
@@ -191,8 +191,8 @@ int ahl_binding_t::init()
         return -2;
     }
 
-    if (update_streams()) return -1;
-    return 0;
+	if (update_streams()) return -1;
+	return 0;
 }
 
 /**
@@ -201,70 +201,70 @@ int ahl_binding_t::init()
  */
 int ahl_binding_t::update_streams()
 {
-    json_object* loaded = nullptr;
-    size_t hals_count = 0, streams_count = 0;
-
-    if (afb_api_call_sync(handle_, "4a-hal-manager", "loaded", json_object_new_object(), &loaded, nullptr, nullptr))
-    {
-        AFB_API_ERROR(handle_, "Failed to call 'loaded' verb on '4a-hal-manager' API!");
-        if (loaded)
-        {
-            AFB_API_ERROR(handle_, "%s", json_object_to_json_string(loaded));
-            json_object_put(loaded);
-        }
-        return -1;
-    }
-
-    if (!json_object_is_type(loaded, json_type_array))
-    {
-        AFB_API_ERROR(handle_, "Expected an array from '4a-hal-manager/loaded', but got something else!");
-        json_object_put(loaded);
-        return -1;
-    }
-    hals_count = json_object_array_length(loaded);
-
-    for(int i = 0; i < hals_count; ++i)
-    {
-        json_object* info = nullptr;
-
-        const char* halname = json_object_get_string(json_object_array_get_idx(loaded, i));
-        AFB_API_DEBUG(handle_, "Found an active HAL: %s", halname);
-
-        if (afb_api_call_sync(handle_, halname, "info", json_object_new_object(), &info, nullptr, nullptr))
-        {
-            AFB_API_ERROR(handle_, "Failed to call 'info' verb on '%s' API!", halname);
-            if (info)
-            {
-                AFB_API_ERROR(handle_, "%s", json_object_to_json_string(info));
-                json_object_put(info);
-            }
-            json_object_put(loaded);
-            return -1;
-        }
-
-        json_object* streamsJ = nullptr;
-        json_object_object_get_ex(info, "streams", &streamsJ);
-        streams_count = json_object_array_length(streamsJ);
-        for(int j = 0; j < streams_count; ++j)
-        {
-            json_object * nameJ = nullptr, * cardIdJ = nullptr;
-            json_object * streamJ = json_object_array_get_idx(streamsJ, j);
-
-            json_object_object_get_ex(streamJ, "name", &nameJ);
-            json_object_object_get_ex(streamJ, "cardId", &cardIdJ);
-
-            update_stream(
-                halname,
-                json_object_get_string(nameJ),
-                json_object_get_string(cardIdJ)
-            );
-        }
-
-        json_object_put(info);
-    }
-    json_object_put(loaded);
-
-    return 0;
+	json_object* loaded = nullptr;
+	size_t hals_count = 0, streams_count = 0;
+
+	if (afb_api_call_sync(handle_, "4a-hal-manager", "loaded", json_object_new_object(), &loaded, nullptr, nullptr))
+	{
+		AFB_API_ERROR(handle_, "Failed to call 'loaded' verb on '4a-hal-manager' API!");
+		if (loaded)
+		{
+			AFB_API_ERROR(handle_, "%s", json_object_to_json_string(loaded));
+			json_object_put(loaded);
+		}
+		return -1;
+	}
+
+	if (!json_object_is_type(loaded, json_type_array))
+	{
+		AFB_API_ERROR(handle_, "Expected an array from '4a-hal-manager/loaded', but got something else!");
+		json_object_put(loaded);
+		return -1;
+	}
+	hals_count = json_object_array_length(loaded);
+
+	for(int i = 0; i < hals_count; ++i)
+	{
+		json_object* info = nullptr;
+
+		const char* halname = json_object_get_string(json_object_array_get_idx(loaded, i));
+		AFB_API_DEBUG(handle_, "Found an active HAL: %s", halname);
+
+		if (afb_api_call_sync(handle_, halname, "info", json_object_new_object(), &info, nullptr, nullptr))
+		{
+			AFB_API_ERROR(handle_, "Failed to call 'info' verb on '%s' API!", halname);
+			if (info)
+			{
+				AFB_API_ERROR(handle_, "%s", json_object_to_json_string(info));
+				json_object_put(info);
+			}
+			json_object_put(loaded);
+			return -1;
+		}
+
+		json_object* streamsJ = nullptr;
+		json_object_object_get_ex(info, "streams", &streamsJ);
+		streams_count = json_object_array_length(streamsJ);
+		for(int j = 0; j < streams_count; ++j)
+		{
+			json_object * nameJ = nullptr, * cardIdJ = nullptr;
+			json_object * streamJ = json_object_array_get_idx(streamsJ, j);
+
+			json_object_object_get_ex(streamJ, "name", &nameJ);
+			json_object_object_get_ex(streamJ, "cardId", &cardIdJ);
+
+			update_stream(
+				halname,
+				json_object_get_string(nameJ),
+				json_object_get_string(cardIdJ)
+			);
+		}
+
+		json_object_put(info);
+	}
+	json_object_put(loaded);
+
+	return 0;
 }
 
 /**
@@ -275,179 +275,179 @@ int ahl_binding_t::update_streams()
  */
 void ahl_binding_t::update_stream(std::string halname, std::string stream, std::string deviceid)
 {
-    for(auto& r : roles_)
-    {
-        if(r.stream() == stream)
-        {
-            if (r.device_uri().size())
-                AFB_API_WARNING(handle_, "Multiple stream with same name: '%s'.", stream.c_str());
-            else
-            {
-                r.device_uri(deviceid);
-                r.hal(halname);
-            }
-        }
-    }
+	for(auto& r : roles_)
+	{
+		if(r.stream() == stream)
+		{
+			if (r.device_uri().size())
+				AFB_API_WARNING(handle_, "Multiple stream with same name: '%s'.", stream.c_str());
+			else
+			{
+				r.device_uri(deviceid);
+				r.hal(halname);
+			}
+		}
+	}
 }
 
 void ahl_binding_t::event(std::string name, json_object* arg)
 {
-    AFB_API_DEBUG(handle_, "Event '%s' received with the following arg: %s", name.c_str(), json_object_to_json_string(arg));
+	AFB_API_DEBUG(handle_, "Event '%s' received with the following arg: %s", name.c_str(), json_object_to_json_string(arg));
 }
 
 void ahl_binding_t::load_static_verbs()
 {
-    if (afb_api_add_verb(
-            handle_,
-            "get_roles",
-            "Retrieve array of available audio roles",
-            ahl_api_get_roles,
-            nullptr,
-            nullptr,
-            AFB_SESSION_NONE_X2, 0))
-    {
-        throw std::runtime_error("Failed to add 'get_role' verb to the API.");
-    }
-
-    if (afb_api_add_verb(
-            handle_,
-            "subscribe",
-            "Subscribe to \"volume_changed\" event",
-            ahl_api_subscribe,
-            nullptr,
-            nullptr,
-            AFB_SESSION_NONE_X2, 0))
-    {
-        throw std::runtime_error("Failed to add 'subscribe' verb to the API.");
-    }
-
-    if (afb_api_add_verb(
-            handle_,
-            "unsubscribe",
-            "Unsubscribe to \"volume_changed\" event",
-            ahl_api_unsubscribe,
-            nullptr,
-            nullptr,
-            AFB_SESSION_NONE_X2, 0))
-    {
-        throw std::runtime_error("Failed to add 'unsubscribe' verb to the API.");
-    }
+	if (afb_api_add_verb(
+			handle_,
+			"get_roles",
+			"Retrieve array of available audio roles",
+			ahl_api_get_roles,
+			nullptr,
+			nullptr,
+			AFB_SESSION_NONE_X2, 0))
+	{
+		throw std::runtime_error("Failed to add 'get_role' verb to the API.");
+	}
+
+	if (afb_api_add_verb(
+			handle_,
+			"subscribe",
+			"Subscribe to \"volume_changed\" event",
+			ahl_api_subscribe,
+			nullptr,
+			nullptr,
+			AFB_SESSION_NONE_X2, 0))
+	{
+		throw std::runtime_error("Failed to add 'subscribe' verb to the API.");
+	}
+
+	if (afb_api_add_verb(
+			handle_,
+			"unsubscribe",
+			"Unsubscribe to \"volume_changed\" event",
+			ahl_api_unsubscribe,
+			nullptr,
+			nullptr,
+			AFB_SESSION_NONE_X2, 0))
+	{
+		throw std::runtime_error("Failed to add 'unsubscribe' verb to the API.");
+	}
 }
 
 void ahl_binding_t::load_controller_configs()
 {
-    char* dir_list = getenv("CONTROL_CONFIG_PATH");
-    if (!dir_list) dir_list = strdup(CONTROL_CONFIG_PATH);
-    struct json_object* config_files = CtlConfigScan(dir_list, "policy");
-    if (!config_files) throw std::runtime_error("No config files found!");
-
-    // Only one file should be found this way, but read all just in case
-    size_t config_files_count = json_object_array_length(config_files);
-    for(int i = 0; i < config_files_count; ++i)
-    {
-        config_entry_t file {json_object_array_get_idx(config_files, i)};
-
-        if(load_controller_config(file.filepath()) < 0)
-        {
-            std::stringstream ss;
-            ss  << "Failed to load config file '"
-                << file.filename()
-                << "' from '"
-                << file.fullpath()
-                << "'!";
-            throw std::runtime_error(ss.str());
-        }
-    }
+	char* dir_list = getenv("CONTROL_CONFIG_PATH");
+	if (!dir_list) dir_list = strdup(CONTROL_CONFIG_PATH);
+	struct json_object* config_files = CtlConfigScan(dir_list, "policy");
+	if (!config_files) throw std::runtime_error("No config files found!");
+
+	// Only one file should be found this way, but read all just in case
+	size_t config_files_count = json_object_array_length(config_files);
+	for(int i = 0; i < config_files_count; ++i)
+	{
+		config_entry_t file {json_object_array_get_idx(config_files, i)};
+
+		if(load_controller_config(file.filepath()) < 0)
+		{
+			std::stringstream ss;
+			ss  << "Failed to load config file '"
+				<< file.filename()
+				<< "' from '"
+				<< file.fullpath()
+				<< "'!";
+			throw std::runtime_error(ss.str());
+		}
+	}
 }
 
 int ahl_binding_t::load_controller_config(const std::string& path)
 {
-    CtlConfigT* controller_config;
-
-    controller_config = CtlLoadMetaData(handle_, path.c_str());
-    if (!controller_config)
-    {
-        AFB_API_ERROR(handle_, "Failed to load controller from config file!");
-        return -1;
-    }
-
-    static CtlSectionT controller_sections[] =
-    {
-        {.key = "plugins",  .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = PluginConfig,  .handle = nullptr, .actions = nullptr},
-        {.key = "onload",   .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = OnloadConfig,  .handle = nullptr, .actions = nullptr},
-        {.key = "controls", .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = ControlConfig, .handle = nullptr, .actions = nullptr},
-        {.key = "events",   .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = EventConfig,   .handle = nullptr, .actions = nullptr},
-        {.key = "roles",    .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = ahl_api_config_roles, .handle = nullptr, .actions = nullptr },
-        {.key = nullptr,    .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = nullptr,       .handle = nullptr, .actions = nullptr}
-    };
-
-    CtlLoadSections(handle_, controller_config, controller_sections);
-
-    return 0;
+	CtlConfigT* controller_config;
+
+	controller_config = CtlLoadMetaData(handle_, path.c_str());
+	if (!controller_config)
+	{
+		AFB_API_ERROR(handle_, "Failed to load controller from config file!");
+		return -1;
+	}
+
+	static CtlSectionT controller_sections[] =
+	{
+		{.key = "plugins",  .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = PluginConfig,  .handle = nullptr, .actions = nullptr},
+		{.key = "onload",   .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = OnloadConfig,  .handle = nullptr, .actions = nullptr},
+		{.key = "controls", .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = ControlConfig, .handle = nullptr, .actions = nullptr},
+		{.key = "events",   .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = EventConfig,   .handle = nullptr, .actions = nullptr},
+		{.key = "roles",    .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = ahl_api_config_roles, .handle = nullptr, .actions = nullptr },
+		{.key = nullptr,    .uid = nullptr, .info = nullptr, .prefix = nullptr, .loadCB = nullptr,       .handle = nullptr, .actions = nullptr}
+	};
+
+	CtlLoadSections(handle_, controller_config, controller_sections);
+
+	return 0;
 }
 
 int ahl_binding_t::parse_roles_config(json_object* o)
 {
-    assert(o != nullptr);
-    assert(json_object_is_type(o, json_type_array));
+	assert(o != nullptr);
+	assert(json_object_is_type(o, json_type_array));
 
-    if (roles_.size()) return 0; // Roles already added, ignore.
+	if (roles_.size()) return 0; // Roles already added, ignore.
 
-    size_t count = json_object_array_length(o);
-    roles_.reserve(count);
-    for(int i = 0; i < count; ++i)
-    {
-        json_object* jr = json_object_array_get_idx(o, i);
-        assert(jr != nullptr);
+	size_t count = json_object_array_length(o);
+	roles_.reserve(count);
+	for(int i = 0; i < count; ++i)
+	{
+		json_object* jr = json_object_array_get_idx(o, i);
+		assert(jr != nullptr);
 
-        roles_.push_back(role_t(jr));
-        role_t& r = roles_[roles_.size() - 1];
-        if(create_api_verb(&r))
-            return -1;
-    }
+		roles_.push_back(role_t(jr));
+		role_t& r = roles_[roles_.size() - 1];
+		if(create_api_verb(&r))
+			return -1;
+	}
 
-    return 0;
+	return 0;
 }
 
 int ahl_binding_t::create_api_verb(role_t* r)
 {
-    AFB_API_NOTICE(handle_, "New audio role: %s", r->uid().c_str());
-
-    if (afb_api_add_verb(
-        handle_,
-        r->uid().c_str(),
-        r->description().c_str(),
-        ahl_api_role,
-        r,
-        nullptr,
-        AFB_SESSION_NONE_X2, 0))
-    {
-        AFB_API_ERROR(handle_, "Failed to add '%s' verb to the API.",
-            r->uid().c_str());
-        return -1;
-    }
-
-    return 0;
+	AFB_API_NOTICE(handle_, "New audio role: %s", r->uid().c_str());
+
+	if (afb_api_add_verb(
+		handle_,
+		r->uid().c_str(),
+		r->description().c_str(),
+		ahl_api_role,
+		r,
+		nullptr,
+		AFB_SESSION_NONE_X2, 0))
+	{
+		AFB_API_ERROR(handle_, "Failed to add '%s' verb to the API.",
+			r->uid().c_str());
+		return -1;
+	}
+
+	return 0;
 }
 
 void ahl_binding_t::get_roles(afb_req_t req) const
 {
-    json_bool verbose = FALSE;
-    json_object* arg = afb_req_json(req);
-    json_object* jverbose;
-    if (arg != nullptr)
-    {
-        json_bool ret = json_object_object_get_ex(arg, "verbose", &jverbose);
-        if (ret) verbose = json_object_get_boolean(jverbose);
-    }
-
-    json_object* result = json_object_new_array();
-    for(const auto& r : roles_)
-    {
-        if (verbose == TRUE || r.device_uri().size())
-        json_object_array_add(result, json_object_new_string(r.uid().c_str()));
-    }
-    afb_req_success(req, result, nullptr);
+	json_bool verbose = FALSE;
+	json_object* arg = afb_req_json(req);
+	json_object* jverbose;
+	if (arg != nullptr)
+	{
+		json_bool ret = json_object_object_get_ex(arg, "verbose", &jverbose);
+		if (ret) verbose = json_object_get_boolean(jverbose);
+	}
+
+	json_object* result = json_object_new_array();
+	for(const auto& r : roles_)
+	{
+		if (verbose == TRUE || r.device_uri().size())
+			json_object_array_add(result, json_object_new_string(r.uid().c_str()));
+	}
+	afb_req_success(req, result, nullptr);
 }
 
 void ahl_binding_t::subscribe(afb_req_t req) const
@@ -477,10 +477,10 @@ int ahl_binding_t::emit_volume_changed(const std::string& role, int volume) cons
 
 const std::vector<role_t> ahl_binding_t::roles() const
 {
-    return roles_;
+	return roles_;
 }
 
 afb_api_t ahl_binding_t::handle() const
 {
-    return handle_;
+	return handle_;
 }
diff --git a/ahl-binding/ahl-binding.hpp b/ahl-binding/ahl-binding.hpp
index 24f4acb..9e670bb 100644
--- a/ahl-binding/ahl-binding.hpp
+++ b/ahl-binding/ahl-binding.hpp
@@ -36,41 +36,41 @@
 
 class ahl_binding_t
 {
-    using role_action = std::function<void(afb_req_t, std::string, std::string, json_object*)>;
+	using role_action = std::function<void(afb_req_t, std::string, std::string, json_object*)>;
 
 private:
-    afb_api_t handle_;
-    afb_event_t volume_changed_;
-    std::vector<role_t> roles_;
+	afb_api_t handle_;
+	afb_event_t volume_changed_;
+	std::vector<role_t> roles_;
 
-    explicit ahl_binding_t();
+	explicit ahl_binding_t();
 
-    void load_static_verbs();
+	void load_static_verbs();
 
 
-    void load_controller_configs();
-    int load_controller_config(const std::string& path);
-    int update_streams();
-    void update_stream(std::string hal, std::string stream, std::string deviceuri);
-    int create_api_verb(role_t* r);
+	void load_controller_configs();
+	int load_controller_config(const std::string& path);
+	int update_streams();
+	void update_stream(std::string hal, std::string stream, std::string deviceuri);
+	int create_api_verb(role_t* r);
 
-    void policy_open(afb_req_t req, const role_t& role);
+	void policy_open(afb_req_t req, const role_t& role);
 
 public:
-    static ahl_binding_t& instance();
-    int preinit(afb_api_t handle);
-    int init();
-    void event(std::string name, json_object* arg);
-    void get_roles(afb_req_t req) const;
-    void subscribe(afb_req_t req) const;
-    void unsubscribe(afb_req_t req) const;
-    int emit_volume_changed(const std::string& role, int volume) const;
-
-    const std::vector<role_t> roles() const;
-    afb_api_t handle() const;
-
-    void audiorole(afb_req_t req);
-    int parse_roles_config(json_object* o);
+	static ahl_binding_t& instance();
+	int preinit(afb_api_t handle);
+	int init();
+	void event(std::string name, json_object* arg);
+	void get_roles(afb_req_t req) const;
+	void subscribe(afb_req_t req) const;
+	void unsubscribe(afb_req_t req) const;
+	int emit_volume_changed(const std::string& role, int volume) const;
+
+	const std::vector<role_t> roles() const;
+	afb_api_t handle() const;
+
+	void audiorole(afb_req_t req);
+	int parse_roles_config(json_object* o);
 };
 
 
diff --git a/ahl-binding/config_entry.cpp b/ahl-binding/config_entry.cpp
index 65d7a40..8685d34 100644
--- a/ahl-binding/config_entry.cpp
+++ b/ahl-binding/config_entry.cpp
@@ -18,45 +18,45 @@
 #include "config_entry.hpp"
 
 config_entry_t::config_entry_t(std::string fp, std::string fn)
-    : fullpath_{fp}
-    , filename_{fn}
+	: fullpath_{fp}
+	, filename_{fn}
 {
 }
 
 config_entry_t::config_entry_t(struct json_object* j)
 {
-    jcast(fullpath_, j, "fullpath");
-    jcast(filename_, j, "filename");
+	jcast(fullpath_, j, "fullpath");
+	jcast(filename_, j, "filename");
 }
 
 config_entry_t& config_entry_t::operator<<(struct json_object* j)
 {
-    jcast(fullpath_, j, "fullpath");
-    jcast(filename_, j, "filename");
-    return *this;
+	jcast(fullpath_, j, "fullpath");
+	jcast(filename_, j, "filename");
+	return *this;
 }
 
 std::string config_entry_t::fullpath() const
 {
-    return fullpath_;
+	return fullpath_;
 }
 
 std::string config_entry_t::filename() const
 {
-    return filename_;
+	return filename_;
 }
 
 std::string config_entry_t::filepath() const
 {
-    return fullpath_ + '/' + filename_;
+	return fullpath_ + '/' + filename_;
 }
 
 void config_entry_t::fullpath(std::string fp)
 {
-    fullpath_ = fp;
+	fullpath_ = fp;
 }
 
 void config_entry_t::finename(std::string fn)
 {
-    filename_ = fn;
+	filename_ = fn;
 }
diff --git a/ahl-binding/config_entry.hpp b/ahl-binding/config_entry.hpp
index 492eed2..58b0b06 100644
--- a/ahl-binding/config_entry.hpp
+++ b/ahl-binding/config_entry.hpp
@@ -24,26 +24,25 @@ class config_entry_t
 private:
 	std::string fullpath_;
 	std::string filename_;
-	
+
 public:
 	explicit config_entry_t() = default;
 	explicit config_entry_t(const config_entry_t&) = default;
-    explicit config_entry_t(config_entry_t&&) = default;
-	
+	explicit config_entry_t(config_entry_t&&) = default;
+
 	~config_entry_t() = default;
-	
+
 	config_entry_t& operator=(const config_entry_t&) = default;
-    config_entry_t& operator=(config_entry_t&&) = default;
-	
+	config_entry_t& operator=(config_entry_t&&) = default;
+
 	explicit config_entry_t(std::string fp, std::string fn);
 	explicit config_entry_t(struct json_object* j);
 	config_entry_t& operator<<(struct json_object* j);
-	
+
 	std::string fullpath() const;
 	std::string filename() const;
 	std::string filepath() const;
-	
+
 	void fullpath(std::string fp);
 	void finename(std::string fn);
-	
 };
diff --git a/ahl-binding/interrupt.cpp b/ahl-binding/interrupt.cpp
index 5bf0b79..a0fa563 100644
--- a/ahl-binding/interrupt.cpp
+++ b/ahl-binding/interrupt.cpp
@@ -5,147 +5,147 @@
 
 interrupt_t::interrupt_t(json_object* o)
 {
-    jcast(type_, o, "type");
-    json_object * value = NULL;
-    json_object_object_get_ex(o, "args", &value);
-    args_ = value;
+	jcast(type_, o, "type");
+	json_object * value = NULL;
+	json_object_object_get_ex(o, "args", &value);
+	args_ = value;
 }
 
 interrupt_t& interrupt_t::operator<<(json_object* o)
 {
-    jcast(type_, o, "type");
-    json_object * value = NULL;
-    json_object_object_get_ex(o, "args", &value);
-    args_  = value;
-    return *this;
+	jcast(type_, o, "type");
+	json_object * value = NULL;
+	json_object_object_get_ex(o, "args", &value);
+	args_  = value;
+	return *this;
 }
 
 std::string interrupt_t::type() const
 {
-    return type_;
+	return type_;
 }
 
 json_object* interrupt_t::args() const
 {
-    return args_;
+	return args_;
 }
 
 void interrupt_t::type(std::string v)
 {
-    type_ = v;
+	type_ = v;
 }
 
 void interrupt_t::args(json_object* v)
 {
-    args_ = v;
+	args_ = v;
 }
 
 int interrupt_t::apply(afb_req_t req, const role_t& role)
 {
-    /*if (type_ == "mute")
-    {
-    }
-    else if (type_ == "continue")
-    {
-    }
-    else if (type_ == "cancel")
-    {
-    }
-    else */if (type_ == "ramp")
-    {
-        for(const auto& r: ahl_binding_t::instance().roles())
-        {
-            if (r.opened() && role.priority() > r.priority())
-            {
-                // { "ramp" : { "uid" : "ramp-slow", "volume" : 30 } }
-                json_object* arg = json_object_new_object();
-                json_object_object_add(arg, "ramp", args_);
-                json_object_get(args_);
-                json_object* result = nullptr;
+	/*if (type_ == "mute")
+	{
+	}
+	else if (type_ == "continue")
+	{
+	}
+	else if (type_ == "cancel")
+	{
+	}
+	else */if (type_ == "ramp")
+	{
+		for(const auto& r: ahl_binding_t::instance().roles())
+		{
+			if (r.opened() && role.priority() > r.priority())
+			{
+				// { "ramp" : { "uid" : "ramp-slow", "volume" : 30 } }
+				json_object* arg = json_object_new_object();
+				json_object_object_add(arg, "ramp", args_);
+				json_object_get(args_);
+				json_object* result = nullptr;
 
-                AFB_API_DEBUG(ahl_binding_t::instance().handle(),
-                    "Call '%s'/'%s' '%s'",
-                    r.hal().c_str(), r.stream().c_str(), json_object_to_json_string(arg));
+				AFB_API_DEBUG(ahl_binding_t::instance().handle(),
+					"Call '%s'/'%s' '%s'",
+					r.hal().c_str(), r.stream().c_str(), json_object_to_json_string(arg));
 
-                if(afb_api_call_sync(ahl_binding_t::instance().handle(), r.hal().c_str(), r.stream().c_str(), arg, &result, nullptr, nullptr))
-                {
-                    afb_req_fail(req, "Failed to call 'ramp' action on stream", nullptr);
-                    return -1;
-                }
-                json_object* jvolold = nullptr;
-                if (json_object_object_get_ex(result, "volold", &jvolold))
-                {
-                    applied_on_.push_back(std::make_tuple<std::string, int>(r.uid(), json_object_get_int(jvolold)));
-                    AFB_API_DEBUG(ahl_binding_t::instance().handle(),
-                        "POLICY: Applying a ramp to '%s' stream because '%s' is opened and have higher priority!",
-                        r.stream().c_str(), role.stream().c_str());
-                }
-            }
-        }
-        return 0;
-    }
-    else
-    {
-        afb_req_fail(req, "Unkown interrupt uid!", nullptr);
-        return -1;
-    }
+				if(afb_api_call_sync(ahl_binding_t::instance().handle(), r.hal().c_str(), r.stream().c_str(), arg, &result, nullptr, nullptr))
+				{
+					afb_req_fail(req, "Failed to call 'ramp' action on stream", nullptr);
+					return -1;
+				}
+				json_object* jvolold = nullptr;
+				if (json_object_object_get_ex(result, "volold", &jvolold))
+				{
+					applied_on_.push_back(std::make_tuple<std::string, int>(r.uid(), json_object_get_int(jvolold)));
+					AFB_API_DEBUG(ahl_binding_t::instance().handle(),
+						"POLICY: Applying a ramp to '%s' stream because '%s' is opened and have higher priority!",
+						r.stream().c_str(), role.stream().c_str());
+				}
+			}
+		}
+		return 0;
+	}
+	else
+	{
+		afb_req_fail(req, "Unkown interrupt uid!", nullptr);
+		return -1;
+	}
 }
 
 void interrupt_t::clear()
 {
-    for (const std::tuple<std::string, int>& state : applied_on_)
-    {
-        std::string role;
-        int vol;
-        std::tie(role, vol) = state;
-        /*if (type_ == "mute")
-        {
-        }
-        else if (type_ == "continue")
-        {
-        }
-        else if (type_ == "cancel")
-        {
-        }
-        else */if (type_ == "ramp")
-        {
-            for(const auto& r: ahl_binding_t::instance().roles())
-            {
-                if (r.uid() == role)
-                {
-                    // { "ramp" : { "uid" : "ramp-slow", "volume" : 30 } }
-                    // Create an fake-interrupt, with the old volume
-                    json_object* interrupt = json_tokener_parse(json_object_to_json_string(args_));
-                    json_object_object_add(interrupt, "volume", json_object_new_int(vol)); // Replace the volume
-                    /*
-                    json_object* volume = nullptr;
-                    if (json_object_object_get_ex(interrupt, "volume", &volume))
-                    {
-                        json_object_set_int(volume, vol);
-                    }
-                    */
+	for (const std::tuple<std::string, int>& state : applied_on_)
+	{
+		std::string role;
+		int vol;
+		std::tie(role, vol) = state;
+		/*if (type_ == "mute")
+		{
+		}
+		else if (type_ == "continue")
+		{
+		}
+		else if (type_ == "cancel")
+		{
+		}
+		else */if (type_ == "ramp")
+		{
+			for(const auto& r: ahl_binding_t::instance().roles())
+			{
+				if (r.uid() == role)
+				{
+					// { "ramp" : { "uid" : "ramp-slow", "volume" : 30 } }
+					// Create an fake-interrupt, with the old volume
+					json_object* interrupt = json_tokener_parse(json_object_to_json_string(args_));
+					json_object_object_add(interrupt, "volume", json_object_new_int(vol)); // Replace the volume
+					/*
+					json_object* volume = nullptr;
+					if (json_object_object_get_ex(interrupt, "volume", &volume))
+					{
+						json_object_set_int(volume, vol);
+					}
+					*/
 
-                    json_object* arg = json_object_new_object();
-                    json_object_object_add(arg, "ramp", interrupt);
-                    json_object* result = nullptr;
+					json_object* arg = json_object_new_object();
+					json_object_object_add(arg, "ramp", interrupt);
+					json_object* result = nullptr;
 
-                    AFB_API_DEBUG(ahl_binding_t::instance().handle(),
-                        "Call '%s'/'%s' '%s",
-                        r.hal().c_str(), r.stream().c_str(), json_object_to_json_string(arg));
+					AFB_API_DEBUG(ahl_binding_t::instance().handle(),
+						"Call '%s'/'%s' '%s",
+						r.hal().c_str(), r.stream().c_str(), json_object_to_json_string(arg));
 
-                    if(afb_api_call_sync(ahl_binding_t::instance().handle(), r.hal().c_str(), r.stream().c_str(), arg, &result, nullptr, nullptr))
-                    {
-                        AFB_API_ERROR(ahl_binding_t::instance().handle(),
-                            "Failed to call 'ramp' action on '%s'", role.c_str());
-                    }
-                    else
-                    {
-                        AFB_API_DEBUG(ahl_binding_t::instance().handle(),
-                            "Called 'ramp' action on '%s'", role.c_str());
-                    }
-                }
-            }
-        }
-    }
-    applied_on_.clear();
+					if(afb_api_call_sync(ahl_binding_t::instance().handle(), r.hal().c_str(), r.stream().c_str(), arg, &result, nullptr, nullptr))
+					{
+						AFB_API_ERROR(ahl_binding_t::instance().handle(),
+							"Failed to call 'ramp' action on '%s'", role.c_str());
+					}
+					else
+					{
+						AFB_API_DEBUG(ahl_binding_t::instance().handle(),
+							"Called 'ramp' action on '%s'", role.c_str());
+					}
+				}
+			}
+		}
+	}
+	applied_on_.clear();
 }
diff --git a/ahl-binding/interrupt.hpp b/ahl-binding/interrupt.hpp
index c123699..d0caf79 100644
--- a/ahl-binding/interrupt.hpp
+++ b/ahl-binding/interrupt.hpp
@@ -11,27 +11,27 @@ class role_t;
 class interrupt_t
 {
 private:
-    std::string type_;
-    json_object* args_;
-    std::vector<std::tuple<std::string, uint32_t>> applied_on_;
+	std::string type_;
+	json_object* args_;
+	std::vector<std::tuple<std::string, uint32_t>> applied_on_;
 
 public:
-    explicit interrupt_t() = default;
-    explicit interrupt_t(const interrupt_t&) = default;
-    explicit interrupt_t(interrupt_t&&) = default;
-    ~interrupt_t() = default;
+	explicit interrupt_t() = default;
+	explicit interrupt_t(const interrupt_t&) = default;
+	explicit interrupt_t(interrupt_t&&) = default;
+	~interrupt_t() = default;
 
-    interrupt_t& operator=(const interrupt_t&) = default;
-    interrupt_t& operator=(interrupt_t&&) = default;
+	interrupt_t& operator=(const interrupt_t&) = default;
+	interrupt_t& operator=(interrupt_t&&) = default;
 
-    explicit interrupt_t(json_object* o);
-    interrupt_t& operator<<(json_object* o);
+	explicit interrupt_t(json_object* o);
+	interrupt_t& operator<<(json_object* o);
 
-    std::string type() const;
-    json_object* args() const;
+	std::string type() const;
+	json_object* args() const;
 
-    void type(std::string v);
-    void args(json_object* v);
-    int apply(afb_req_t req, const role_t& role);
-    void clear();
+	void type(std::string v);
+	void args(json_object* v);
+	int apply(afb_req_t req, const role_t& role);
+	void clear();
 };
diff --git a/ahl-binding/jsonc_utils.hpp b/ahl-binding/jsonc_utils.hpp
index 097eda4..4657611 100644
--- a/ahl-binding/jsonc_utils.hpp
+++ b/ahl-binding/jsonc_utils.hpp
@@ -24,58 +24,58 @@
 template<class T>
 inline T& jcast(T& v, json_object* o)
 {
-    v << o;
-    return v;
+	v << o;
+	return v;
 }
 
 template<class T>
 inline T& jcast_array(T& v, json_object* o)
 {
-    if (o == nullptr) return v;
-    auto sz = json_object_array_length(o);
-    for(auto i = 0; i < sz ; ++i)
-    {
-        typename T::value_type item;
-        jcast(item, json_object_array_get_idx(o, i));
-        v.push_back(item);
-    }
-    return v;
+	if (o == nullptr) return v;
+	auto sz = json_object_array_length(o);
+	for(auto i = 0; i < sz ; ++i)
+	{
+		typename T::value_type item;
+		jcast(item, json_object_array_get_idx(o, i));
+		v.push_back(item);
+	}
+	return v;
 }
 
 template<>
 inline bool& jcast<bool>(bool& v, json_object* o)
 {
-    v = (json_object_get_boolean(o) == TRUE);
-    return v;
+	v = (json_object_get_boolean(o) == TRUE);
+	return v;
 }
 
 template<>
 inline double& jcast<double>(double& v, json_object* o)
 {
-    v = json_object_get_double(o);
-    return v;
+	v = json_object_get_double(o);
+	return v;
 }
 
 template<>
 inline int32_t& jcast<int32_t>(int32_t& v, json_object* o)
 {
-    v = json_object_get_int(o);
-    return v;
+	v = json_object_get_int(o);
+	return v;
 }
 
 template<>
 inline int64_t& jcast<int64_t>(int64_t& v, json_object* o)
 {
-    v = json_object_get_int(o);
-    return v;
+	v = json_object_get_int(o);
+	return v;
 }
 
 template<>
 inline std::string& jcast<std::string>(std::string& v, json_object* o)
 {
-    const char* tmp = json_object_get_string(o);
-    v = tmp ? tmp : "";
-    return v;
+	const char* tmp = json_object_get_string(o);
+	v = tmp ? tmp : "";
+	return v;
 }
 
 template<class T>
@@ -83,7 +83,7 @@ inline T& jcast(T& v, json_object* o, std::string field)
 {
 	json_object * value;
 	json_object_object_get_ex(o, field.c_str(), &value);
-    return jcast<T>(v, value);
+	return jcast<T>(v, value);
 }
 
 template<class T>
@@ -91,5 +91,5 @@ inline T& jcast_array(T& v, json_object* o, std::string field)
 {
 	json_object * value;
 	json_object_object_get_ex(o, field.c_str(), &value);
-    return jcast_array<T>(v, value);
+	return jcast_array<T>(v, value);
 }
diff --git a/ahl-binding/role.cpp b/ahl-binding/role.cpp
index 3a4dd0e..635e585 100644
--- a/ahl-binding/role.cpp
+++ b/ahl-binding/role.cpp
@@ -24,208 +24,208 @@ using session_t = std::vector<role_t*>;
 
 role_t::role_t(json_object* j)
 {
-    jcast(uid_, j, "uid");
-    jcast(description_, j, "description");
-    jcast(priority_, j, "priority");
-    jcast(stream_, j, "stream");
-    jcast_array(interrupts_, j, "interrupts");
-    opened_ = false;
+	jcast(uid_, j, "uid");
+	jcast(description_, j, "description");
+	jcast(priority_, j, "priority");
+	jcast(stream_, j, "stream");
+	jcast_array(interrupts_, j, "interrupts");
+	opened_ = false;
 }
 
 role_t& role_t::operator<<(json_object* j)
 {
-    jcast(uid_, j, "uid");
-    jcast(description_, j, "description");
-    jcast(priority_, j, "priority");
-    jcast(stream_, j, "stream");
-    jcast_array(interrupts_, j, "interrupts");
-    return *this;
+	jcast(uid_, j, "uid");
+	jcast(description_, j, "description");
+	jcast(priority_, j, "priority");
+	jcast(stream_, j, "stream");
+	jcast_array(interrupts_, j, "interrupts");
+	return *this;
 }
 
 std::string role_t::uid() const
 {
-    return uid_;
+	return uid_;
 }
 
 std::string role_t::description() const
 {
-    return description_;
+	return description_;
 }
 
 std::string role_t::hal() const
 {
-    return hal_;
+	return hal_;
 }
 
 std::string role_t::stream() const
 {
-    return stream_;
+	return stream_;
 }
 
 int role_t::priority() const
 {
-    return priority_;
+	return priority_;
 }
 
 std::string role_t::device_uri() const
 {
-    return device_uri_;
+	return device_uri_;
 }
 
 bool role_t::opened() const
 {
-    return opened_;
+	return opened_;
 }
 
 void role_t::uid(std::string v)
 {
-    uid_ = v;
+	uid_ = v;
 }
 
 void role_t::description(std::string v)
 {
-    description_ = v;
+	description_ = v;
 }
 
 void role_t::hal(std::string v)
 {
-    hal_ = v;
+	hal_ = v;
 }
 
 void role_t::stream(std::string v)
 {
-    stream_ = v;
+	stream_ = v;
 }
 
 void role_t::priority(int v)
 {
-    priority_ = v;
+	priority_ = v;
 }
 
 void role_t::device_uri(std::string v)
 {
-    device_uri_ = v;
+	device_uri_ = v;
 }
 
 const std::vector<interrupt_t>& role_t::interrupts() const
 {
-    return interrupts_;
+	return interrupts_;
 }
 
 int role_t::apply_policy(afb_req_t req)
 {
-    return interrupts_.size() ? interrupts_[0].apply(req, *this) : 0;
+	return interrupts_.size() ? interrupts_[0].apply(req, *this) : 0;
 }
 
 void role_t::invoke(afb_req_t req)
 {
-    json_object* arg = afb_req_json(req);
-    if (arg == nullptr)
-    {
-        afb_req_fail(req, "No valid argument!", nullptr);
-        return;
-    }
-
-    json_object* jaction;
-    json_bool ret = json_object_object_get_ex(arg, "action", &jaction);
-    if (!ret)
-    {
-        afb_req_fail(req, "No valid action!", nullptr);
-        return;
-    }
-
-    std::string action = json_object_get_string(jaction);
-    if (action.size() == 0)
-    {
-        afb_req_fail(req, "No valid action!", nullptr);
-        return;
-    }
-
-         if (action == "open")      open(req, arg);
-    else if (action == "close")     close(req, arg);
-    else if (action == "volume")    volume(req, arg);
-    else if (action == "interrupt") interrupt(req, arg);
-    else if (action == "mute")      mute(req, arg);
-    else if (action == "unmute")    unmute(req, arg);
-    else afb_req_fail(req, "Unknown action!", nullptr);
+	json_object* arg = afb_req_json(req);
+	if (arg == nullptr)
+	{
+		afb_req_fail(req, "No valid argument!", nullptr);
+		return;
+	}
+
+	json_object* jaction;
+	json_bool ret = json_object_object_get_ex(arg, "action", &jaction);
+	if (!ret)
+	{
+		afb_req_fail(req, "No valid action!", nullptr);
+		return;
+	}
+
+	std::string action = json_object_get_string(jaction);
+	if (action.size() == 0)
+	{
+		afb_req_fail(req, "No valid action!", nullptr);
+		return;
+	}
+
+		 if (action == "open")      open(req, arg);
+	else if (action == "close")     close(req, arg);
+	else if (action == "volume")    volume(req, arg);
+	else if (action == "interrupt") interrupt(req, arg);
+	else if (action == "mute")      mute(req, arg);
+	else if (action == "unmute")    unmute(req, arg);
+	else afb_req_fail(req, "Unknown action!", nullptr);
 }
 
 void role_t::open(afb_req_t r, json_object* o)
 {
-    if (opened_)
-    {
-        afb_req_fail(r, "Already opened!", nullptr);
-        return;
-    }
-
-    if (!apply_policy(r))
-    {
-        afb_req_context(r,
-            0, // Do not replace previous context if any
-            [](void* arg) -> void* { return new session_t(); },
-            [](void* arg) {
-                afb_api_t api = ahl_binding_t::instance().handle();
-                session_t* opened_roles = reinterpret_cast<session_t*>(arg);
-                for(role_t* role : *opened_roles)
-                {
-                    AFB_API_DEBUG(api, "Released role %s\n", role->uid_.c_str());
-                    role->opened_ = false;
-                    if(role->interrupts_.size()) role->interrupts_[0].clear();
-
-                    // send a mute command to the HAL. We cannot reuse the do_mute function,
-                    // because in the context here, the afb_request is no longer valid.
-                    json_object* a = json_object_new_object();
-                    json_object_object_add(a, "mute", json_object_new_boolean(true));
-
-                    afb_api_call(
-                        api,
-                        role->hal_.c_str(),
-                        role->stream_.c_str(),
-                        a,
-                        NULL,
-                        NULL);
-                }
-                delete opened_roles;
-            },
-            nullptr
-        );
-
-        opened_ = true;
-
-        // Add the current role to the session
-        session_t* context = reinterpret_cast<session_t*>(afb_req_context_get(r));
-        if(context) context->push_back(this);
-
-        json_object* result = json_object_new_object();
-        json_object_object_add(result, "device_uri", json_object_new_string(device_uri_.c_str()));
-
-        afb_req_success(r, result, nullptr);
-    }
+	if (opened_)
+	{
+		afb_req_fail(r, "Already opened!", nullptr);
+		return;
+	}
+
+	if (!apply_policy(r))
+	{
+		afb_req_context(r,
+			0, // Do not replace previous context if any
+			[](void* arg) -> void* { return new session_t(); },
+			[](void* arg) {
+				afb_api_t api = ahl_binding_t::instance().handle();
+				session_t* opened_roles = reinterpret_cast<session_t*>(arg);
+				for(role_t* role : *opened_roles)
+				{
+					AFB_API_DEBUG(api, "Released role %s\n", role->uid_.c_str());
+					role->opened_ = false;
+					if(role->interrupts_.size()) role->interrupts_[0].clear();
+
+					// send a mute command to the HAL. We cannot reuse the do_mute function,
+					// because in the context here, the afb_request is no longer valid.
+					json_object* a = json_object_new_object();
+					json_object_object_add(a, "mute", json_object_new_boolean(true));
+
+					afb_api_call(
+						api,
+						role->hal_.c_str(),
+						role->stream_.c_str(),
+						a,
+						NULL,
+						NULL);
+				}
+				delete opened_roles;
+			},
+			nullptr
+		);
+
+		opened_ = true;
+
+		// Add the current role to the session
+		session_t* context = reinterpret_cast<session_t*>(afb_req_context_get(r));
+		if(context) context->push_back(this);
+
+		json_object* result = json_object_new_object();
+		json_object_object_add(result, "device_uri", json_object_new_string(device_uri_.c_str()));
+
+		afb_req_success(r, result, nullptr);
+	}
 }
 
 void role_t::close(afb_req_t r, json_object* o)
 {
-    if (!opened_)
-    {
-        afb_req_success(r, nullptr, "Already closed!");
-        return;
-    }
-
-    session_t* context = reinterpret_cast<session_t*>(afb_req_context_get(r));
-    if(!context)
-    {
-        afb_req_fail(r, "Stream is opened by another client!", nullptr);
-        return;
-    }
-
-    // Remove the current role from the session.
-    std::string uid = uid_;
-    std::remove_if(context->begin(), context->end(), [uid](role_t* r) { return r->uid_ == uid; });
-    context->push_back(this);
-
-    opened_ = false;
-    if(interrupts_.size()) interrupts_[0].clear();
-    afb_req_success(r, nullptr, "Stream closed!");
+	if (!opened_)
+	{
+		afb_req_success(r, nullptr, "Already closed!");
+		return;
+	}
+
+	session_t* context = reinterpret_cast<session_t*>(afb_req_context_get(r));
+	if(!context)
+	{
+		afb_req_fail(r, "Stream is opened by another client!", nullptr);
+		return;
+	}
+
+	// Remove the current role from the session.
+	std::string uid = uid_;
+	std::remove_if(context->begin(), context->end(), [uid](role_t* r) { return r->uid_ == uid; });
+	context->push_back(this);
+
+	opened_ = false;
+	if(interrupts_.size()) interrupts_[0].clear();
+	afb_req_success(r, nullptr, "Stream closed!");
 }
 
 void role_t::mute(afb_req_t r, json_object* o) {
@@ -238,100 +238,100 @@ void role_t::unmute(afb_req_t r, json_object  *o) {
 
 void role_t::do_mute(afb_req_t r, bool v) {
 
-    json_object* a = json_object_new_object();
-    json_object_object_add(a, "mute", json_object_new_boolean(v));
-    afb_api_t api = ahl_binding_t::instance().handle();
-
-    afb_api_call(
-        api,
-        hal_.c_str(),
-        stream_.c_str(),
-        a,
-        [](void* closure, json_object* result, const char* error, const char* info, afb_api_t handle)
-        {
-            AFB_API_DEBUG(handle, "Got the following answer: %s", json_object_to_json_string(result));
-            afb_req_t r = (afb_req_t)closure;
-
-            json_object_get(result);
-            if (error) afb_req_fail(r, json_object_to_json_string(result), nullptr);
-            else afb_req_success(r, result, nullptr);
-            afb_req_unref(r);
-        },
-        afb_req_addref(r));
+	json_object* a = json_object_new_object();
+	json_object_object_add(a, "mute", json_object_new_boolean(v));
+	afb_api_t api = ahl_binding_t::instance().handle();
+
+	afb_api_call(
+		api,
+		hal_.c_str(),
+		stream_.c_str(),
+		a,
+		[](void* closure, json_object* result, const char* error, const char* info, afb_api_t handle)
+		{
+			AFB_API_DEBUG(handle, "Got the following answer: %s", json_object_to_json_string(result));
+			afb_req_t r = (afb_req_t)closure;
+
+			json_object_get(result);
+			if (error) afb_req_fail(r, json_object_to_json_string(result), nullptr);
+			else afb_req_success(r, result, nullptr);
+			afb_req_unref(r);
+		},
+		afb_req_addref(r));
 }
 
 struct volumeclosure
 {
-    std::string role;
-    afb_req_t req;
+	std::string role;
+	afb_req_t req;
 };
 
 void role_t::volume(afb_req_t r, json_object* o)
 {
     afb_api_t api = ahl_binding_t::instance().handle();
 
-    if(!afb_req_has_permission(r, "urn:AGL:permission::public:4a-audio-mixer"))
-    {
-        if (!opened_)
-        {
-            afb_req_fail(r, "You have to open the stream first!", nullptr);
-            return;
-        }
-
-        if(!afb_req_context_get(r))
-        {
-            afb_req_fail(r, "Stream is opened by another client!", nullptr);
-            return;
-        }
-    }
-    else
-    {
-        AFB_API_DEBUG(api, "Granted special audio-mixer permission to change volume");
-    }
-
-    json_object* value;
-    json_bool ret = json_object_object_get_ex(o, "value", &value);
-    if (!ret)
-    {
-        afb_req_fail(r, "No value given!", nullptr);
-        return;
-    }
-
-    json_object_get(value);
-
-    json_object* a = json_object_new_object();
-    json_object_object_add(a, "volume", value);
+	if(!afb_req_has_permission(r, "urn:AGL:permission::public:4a-audio-mixer"))
+	{
+		if (!opened_)
+		{
+			afb_req_fail(r, "You have to open the stream first!", nullptr);
+			return;
+		}
+
+		if(!afb_req_context_get(r))
+		{
+			afb_req_fail(r, "Stream is opened by another client!", nullptr);
+			return;
+		}
+	}
+	else
+	{
+		AFB_API_DEBUG(api, "Granted special audio-mixer permission to change volume");
+	}
+
+	json_object* value;
+	json_bool ret = json_object_object_get_ex(o, "value", &value);
+	if (!ret)
+	{
+		afb_req_fail(r, "No value given!", nullptr);
+		return;
+	}
+
+	json_object_get(value);
+
+	json_object* a = json_object_new_object();
+	json_object_object_add(a, "volume", value);
 
     volumeclosure* userdata = new volumeclosure();
     userdata->role = uid_;
     userdata->req = afb_req_addref(r);
 
-    afb_api_call(
-        api,
-        hal_.c_str(),
-        stream_.c_str(),
-        a,
-        [](void* closure, json_object* result, const char* error, const char* info, afb_api_t handle)
-        {
-            AFB_API_DEBUG(handle, "Got the following answer: %s", json_object_to_json_string(result));
-            volumeclosure* r = reinterpret_cast<volumeclosure*>(closure);
-
-            json_object_get(result);
-            if (error) afb_req_fail(r->req, json_object_to_json_string(result), nullptr);
-            else
-            {
-                json_object* volnew;
-                if (json_object_object_get_ex(result, "volnew", &volnew))
-                {
-                    ahl_binding_t::instance().emit_volume_changed(r->role, json_object_get_int(volnew));
-                }
-                afb_req_success(r->req, result, nullptr);
-            }
-            afb_req_unref(r->req);
-            delete r;
-        },
-        userdata
-    );
+	afb_api_call(
+		api,
+		hal_.c_str(),
+		stream_.c_str(),
+		a,
+		[](void* closure, json_object* result, const char* error, const char* info, afb_api_t handle)
+		{
+			AFB_API_DEBUG(handle, "Got the following answer: %s", json_object_to_json_string(result));
+			volumeclosure* r = reinterpret_cast<volumeclosure*>(closure);
+
+			json_object_get(result);
+			if (error) afb_req_fail(r->req, json_object_to_json_string(result), nullptr);
+			else
+			{
+				json_object* volnew;
+				if (json_object_object_get_ex(result, "volnew", &volnew))
+				{
+					ahl_binding_t::instance().emit_volume_changed(r->role, json_object_get_int(volnew));
+				}
+				afb_req_success(r->req, result, nullptr);
+			}
+			afb_req_unref(r->req);
+			delete r;
+		},
+		userdata
+	);
 }
 
 void role_t::interrupt(afb_req_t r, json_object* o)
diff --git a/ahl-binding/role.hpp b/ahl-binding/role.hpp
index 7cf0f7e..e0c979a 100644
--- a/ahl-binding/role.hpp
+++ b/ahl-binding/role.hpp
@@ -24,59 +24,59 @@
 class role_t
 {
 private:
-    // Members filled by config
-    std::string uid_;
-    std::string description_;
-    std::string hal_;
-    std::string stream_;
-    int priority_;
-    std::vector<interrupt_t> interrupts_;
+	// Members filled by config
+	std::string uid_;
+	std::string description_;
+	std::string hal_;
+	std::string stream_;
+	int priority_;
+	std::vector<interrupt_t> interrupts_;
 
-    std::string device_uri_;
-    bool opened_ = false;
-    
-    int apply_policy(afb_req_t req);
+	std::string device_uri_;
+	bool opened_ = false;
 
-    void do_mute(afb_req_t, bool);
+	int apply_policy(afb_req_t req);
+
+	void do_mute(afb_req_t, bool);
 
 public:
-    explicit role_t() = default;
-    explicit role_t(const role_t&) = default;
-    explicit role_t(role_t&&) = default;
-
-    ~role_t() = default;
-    
-    role_t& operator=(const role_t&) = default;
-    role_t& operator=(role_t&&) = default;
-
-    static role_t from_json(json_object* o);
-
-    explicit role_t(json_object* j);
-    
-    role_t& operator<<(json_object* j);
-
-    std::string uid() const;
-    std::string description() const;
-    std::string hal() const;
-    std::string stream() const;
-    int priority() const;
-    const std::vector<interrupt_t>& interrupts() const;
-    std::string device_uri() const;
-    bool opened() const;
-    
-    void uid(std::string v);
-    void description(std::string v);
-    void hal(std::string v);
-    void stream(std::string v);
-    void device_uri(std::string v);
-    void priority(int v);
-
-    void invoke(afb_req_t r);
-
-    void open(afb_req_t r, json_object* o);
-    void close(afb_req_t r, json_object* o);
-    void volume(afb_req_t r, json_object* o);
-    void interrupt(afb_req_t r, json_object* o);
-    void mute(afb_req_t r, json_object* o);
-    void unmute(afb_req_t r, json_object* o);
+	explicit role_t() = default;
+	explicit role_t(const role_t&) = default;
+	explicit role_t(role_t&&) = default;
+
+	~role_t() = default;
+
+	role_t& operator=(const role_t&) = default;
+	role_t& operator=(role_t&&) = default;
+
+	static role_t from_json(json_object* o);
+
+	explicit role_t(json_object* j);
+
+	role_t& operator<<(json_object* j);
+
+	std::string uid() const;
+	std::string description() const;
+	std::string hal() const;
+	std::string stream() const;
+	int priority() const;
+	const std::vector<interrupt_t>& interrupts() const;
+	std::string device_uri() const;
+	bool opened() const;
+
+	void uid(std::string v);
+	void description(std::string v);
+	void hal(std::string v);
+	void stream(std::string v);
+	void device_uri(std::string v);
+	void priority(int v);
+
+	void invoke(afb_req_t r);
+
+	void open(afb_req_t r, json_object* o);
+	void close(afb_req_t r, json_object* o);
+	void volume(afb_req_t r, json_object* o);
+	void interrupt(afb_req_t r, json_object* o);
+	void mute(afb_req_t r, json_object* o);
+	void unmute(afb_req_t r, json_object* o);
 };