RE: How to get the BLE device name after connection

Einar Thorsrud — Tue, 10 Oct 2023 15:05:23 GMT

Hi,

You can read the device name for instance like this:

static uint8_t device_name_read_cb(struct bt_conn *conn, uint8_t err,
			    struct bt_gatt_read_params *params,
			    const void *data, uint16_t length)
{
	char device_name_str[249];

	if (err != BT_ATT_ERR_SUCCESS) {
		LOG_INF("Device name read failed: 0x%02X", err);
	}

	snprintf(device_name_str, sizeof(device_name_str), "%s", (char *)data);

	LOG_INF("Device name: %s", device_name_str);

	return 0;
}

void read_print_device_name(struct bt_conn *conn)
{
	static struct bt_gatt_read_params read_params;
	static struct bt_uuid_16 uuid;
	memcpy(&uuid, BT_UUID_GAP_DEVICE_NAME, sizeof(uuid));

	read_params.func = device_name_read_cb;
	read_params.handle_count = 0;
	read_params.by_uuid.start_handle = 1;
	read_params.by_uuid.end_handle = 0xffff;
	read_params.by_uuid.uuid = &uuid.uuid;
	bt_gatt_read(conn, &read_params);
}

(Call read_print_device_name with the connection handle)