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From: Abhishek Pandit-Subedi <>
	Abhishek Pandit-Subedi <>,
	"David S. Miller" <>,
	Johan Hedberg <>,,,
	Jakub Kicinski <>
Subject: [PATCH 2/2] Bluetooth: Modify LE window and interval for suspend
Date: Tue, 12 May 2020 19:09:33 -0700
Message-ID: <20200512190924.2.Ibdf1535b0d4c63aaf337161a333b419d6d32c364@changeid> (raw)
In-Reply-To: <>

When a device is suspended, it doesn't need to be as responsive to
connection events. Increase the interval to 640ms (creating a duty cycle
of roughly 1.75%) so that passive scanning uses much less power (vs
previous duty cycle of 18.75%). The new window + interval combination
has been tested to work with HID devices (which are currently the only
devices capable of wake up).

Signed-off-by: Abhishek Pandit-Subedi <>

 net/bluetooth/hci_request.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index f6870e98faab2..6b45e31432a77 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -35,7 +35,7 @@
 #define HCI_REQ_CANCELED  2
 #define LE_SUSPEND_SCAN_WINDOW		0x0012
 void hci_req_init(struct hci_request *req, struct hci_dev *hdev)

  parent reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-13  2:09 [PATCH 0/2] Bluetooth: Update LE scanning parameters " Abhishek Pandit-Subedi
2020-05-13  2:09 ` [PATCH 1/2] Bluetooth: Fix incorrect type for window and interval Abhishek Pandit-Subedi
2020-05-13  2:09 ` Abhishek Pandit-Subedi [this message]
2020-05-13  6:51 ` [PATCH 0/2] Bluetooth: Update LE scanning parameters for suspend Marcel Holtmann

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