int wpas_wps_searching(struct wpa_supplicant *wpa_s);
int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *pos,
char *end);
-int wpas_wps_er_start(struct wpa_supplicant *wpa_s);
+int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter);
int wpas_wps_er_stop(struct wpa_supplicant *wpa_s);
int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const char *uuid,
const char *pin);