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authorJohan Hedberg <johan.hedberg@intel.com>2012-06-28 13:44:30 +0300
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2012-07-16 10:50:11 -0300
commit83ce9a06b5307c8d759ddd8e4f49e2495fb321f7 (patch)
tree9b41532663ce2e07297f3e695455bba333427f34
parentc20f8e35ca8b0583323d310ec63a0f0d17cfdcf5 (diff)
Bluetooth: Change page scan interval in fast connectable mode
This patch is based on a user space (hciops) patch which never made it upstream but does make sense to include in the mgmt part of the kernel. (User space) commit message from Dmitriy Paliy: " Page scan interval in fast connectable mode is changed from 22.5 msec to 160 msec to perform less aggressive page scanning. This is done accordingly to controller vendor recommendation. Primary concern is that current parameters 22.5 interval, 11.25 window, and interleaved scanning occupy whole radio bandwidth. Changing interval to 160 msec should be sufficient for both speeding up connection establishment and leaving space for other activities, like inquiry scan, e.g. " Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
-rw-r--r--net/bluetooth/mgmt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0475f376ebf..ad6613d17ca 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2596,8 +2596,8 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
if (cp->val) {
type = PAGE_SCAN_TYPE_INTERLACED;
- /* 22.5 msec page scan interval */
- acp.interval = __constant_cpu_to_le16(0x0024);
+ /* 160 msec page scan interval */
+ acp.interval = __constant_cpu_to_le16(0x0100);
} else {
type = PAGE_SCAN_TYPE_STANDARD; /* default */