[PATCH] Bluetooth: Add default connection parameters before pairing
From: Marcel Holtmann <marcel@holtmann.org>
Date: 2014-06-30 09:50:36
Subsystem:
bluetooth subsystem, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds
When trying to pair a new Bluetooth Low Energy device, then make sure that the default connections parameters are in place before trying to establish the first connection to that device. With the connection parameters structure allocated, the slave preferred values can now easily be tracked and all future connections will use the correct values from that start decreasing connection establishment time. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> --- net/bluetooth/mgmt.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d83197f9e727..ba3c049d729a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c@@ -2947,6 +2947,17 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, else addr_type = ADDR_LE_DEV_RANDOM; + /* When pairing a new device, it is expected to remember + * this device for future connections. Adding the connection + * parameter information ahead of time allows tracking + * of the slave preferred values and will speed up any + * further connection establishment. + */ + hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type, + HCI_AUTO_CONN_DISABLED, + hdev->le_conn_min_interval, + hdev->le_conn_max_interval); + conn = hci_connect_le(hdev, &cp->addr.bdaddr, addr_type, sec_level, auth_type); }
--
1.9.3