# HwBinder IPC from client to server, and callbacks binder_call(hal_audiocontrol_client, hal_audiocontrol_server) binder_call(hal_audiocontrol_server, hal_audiocontrol_client) add_hwservice(hal_audiocontrol_server, hal_audiocontrol_hwservice) allow hal_audiocontrol_client hal_audiocontrol_hwservice:hwservice_manager find;