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Bluetooth: Modify LE window and interval for suspend

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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 <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Abhishek Pandit-Subedi 2020-05-12 19:09:33 -07:00 committed by Marcel Holtmann
parent aaebf8e608
commit 91779665c1
1 changed files with 1 additions and 1 deletions
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2
net/bluetooth/hci_request.c
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@ -35,7 +35,7 @@
#define HCI_REQ_CANCELED 2
#define LE_SUSPEND_SCAN_WINDOW 0x0012
#define LE_SUSPEND_SCAN_INTERVAL 0x0060
#define LE_SUSPEND_SCAN_INTERVAL 0x0400
void hci_req_init(struct hci_request *req, struct hci_dev *hdev)
{