wifi_direct_device_state_changed_cb activation_cb;
wifi_direct_discovery_state_chagned_cb discover_cb;
wifi_direct_connection_state_changed_cb connection_cb;
wifi_direct_device_state_changed_cb activation_cb;
wifi_direct_discovery_state_chagned_cb discover_cb;
wifi_direct_connection_state_changed_cb connection_cb;