eir_get_service_data
void *eir_get_service_data(u8 *eir, size_t eir_len, u16 uuid, size_t *len);
if (!eir_get_service_data(adv->per_adv_data, adv->per_adv_data_len,
if (eir_get_service_data(adv->adv_data, adv->adv_data_len, 0x1852,
base = eir_get_service_data(hcon->le_per_adv_data,