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@xxxxxxxxxxxx>
---
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
-#define LE_SUSPEND_SCAN_INTERVAL 0x0060
+#define LE_SUSPEND_SCAN_INTERVAL 0x0400
void hci_req_init(struct hci_request *req, struct hci_dev *hdev)
{
--
2.26.2.645.ge9eca65c58-goog
