Commit 2f99536a authored Dec 03, 2015 by Johan Hedberg Committed by Marcel Holtmann Dec 10, 2015

Bluetooth: Use continuous scanning when creating LE connections



All LE connections are now triggered through a preceding passive scan
and waiting for a connectable advertising report. This means we've got
the best possible guarantee that the device is within range and should
be able to request the controller to perform continuous scanning. This
way we minimize the risk that we miss out on any advertising packets.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org # 4.3+

parent 28dc4b92

net/bluetooth/hci_conn.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -726,8 +726,12 @@ static void hci_req_add_le_create_conn(struct hci_request *req,
		if (hci_update_random_address(req, false, &own_addr_type))
		return;

		/* Set window to be the same value as the interval to enable
		* continuous scanning.
		*/
		cp.scan_interval = cpu_to_le16(hdev->le_scan_interval);
		cp.scan_window = cpu_to_le16(hdev->le_scan_window);
		cp.scan_window = cp.scan_interval;

		bacpy(&cp.peer_addr, &conn->dst);
		cp.peer_addr_type = conn->dst_type;
		cp.own_address_type = own_addr_type;