# HwBinder IPC from client to server, and callbacks binder_call(hal_light_client, hal_light_server) binder_call(hal_light_server, hal_light_client) hal_attribute_hwservice(hal_light, hal_light_hwservice) # client finds and uses server via service_manager allow hal_light_client hal_light_service:service_manager find; binder_use(hal_light_client) # server adds itself via service_manager add_service(hal_light_server, hal_light_service) binder_call(hal_light_server, servicemanager) allow hal_light_server dumpstate:fifo_file write; allow hal_light sysfs_leds:lnk_file read; allow hal_light sysfs_leds:file rw_file_perms; allow hal_light sysfs_leds:dir r_dir_perms;