Hi,
When I use QLowEnergyController to scan the service, it's always disconnected
about 15 seconds after services discovery is finished. the error is not
certain, sometimes it's "Connection reset by peer", sometimes it's "Connection
timeout".
The log is attached, can anyone have a look at it and give me some advice?
thanks in advance.
qt.bluetooth.bluez: Bluez 5 detected.
qt.bluetooth.bluez: Creating QtBluezDiscoveryManager
m_discoveryAgent is active
qt.bluetooth.bluez: BluetoothManagement: Ignored event: 13
qt.bluetooth.bluez: Discovered: "00:07:80:2E:9B:85" "BLE Module" Num UUIDs 0
total device 0 cached RSSI -94 Class 0
"00:07:80:2E:9B:85" "00:07:80:2E:9B:85" "BLE Module" QFlags(0x1)
qt.bluetooth.bluez: void QBluetoothDeviceDiscoveryAgentPrivate::stop()
found lead MkIII
qt.bluetooth.bluez: Enabling GATT request timeout behavior 20000
qt.bluetooth.bluez: addresstypeToUse: "Public"
qt.bluetooth.bluez: No settings found for peer device.
qt.bluetooth.bluez: BluetoothManagement: Ignored event: 13
qt.bluetooth.bluez: HCI event triggered, type: f
qt.bluetooth.bluez: HCI event triggered, type: 3e
qt.bluetooth.bluez: received connection complete event, handle: 1025
qt.bluetooth.bluez: BluetoothManagement: Ignored event: b
qt.bluetooth.bluez: Current l2cp sec level: 1
qt.bluetooth.bluez: Exchanging MTU
m_controller connected
qt.bluetooth.bluez: Sending read_by_group_type request, startHandle: 1
endHandle: ffff 2800
qt.bluetooth.bluez: Received size: 3 data: "031700"
qt.bluetooth.bluez: Server MTU: 23 resulting mtu: 23
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: Received size: 8 data: "1106010005000018"
qt.bluetooth.bluez: Found uuid: "{00001800-0000-1000-8000-00805f9b34fb}" start
handle: 1 end handle: 5
service discovered
qt.bluetooth.bluez: Sending read_by_group_type request, startHandle: 6
endHandle: ffff 2800
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: Received size: 22 data:
"111406001200e34bc643730f1e930e7fe83ae1b11fab"
qt.bluetooth.bluez: Found uuid: "{ab1fb1e1-3ae8-7f0e-931e-0f7343c64be3}" start
handle: 6 end handle: 12
service discovered
qt.bluetooth.bluez: Sending read_by_group_type request, startHandle: 13
endHandle: ffff 2800
qt.bluetooth.bluez: Received size: 14 data: "1106130017000a1818001a000518"
qt.bluetooth.bluez: Found uuid: "{0000180a-0000-1000-8000-00805f9b34fb}" start
handle: 13 end handle: 17
service discovered
qt.bluetooth.bluez: Found uuid: "{00001805-0000-1000-8000-00805f9b34fb}" start
handle: 18 end handle: 1a
service discovered
qt.bluetooth.bluez: Sending read_by_group_type request, startHandle: 1b
endHandle: ffff 2800
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: Received size: 22 data:
"11141b002d00e8b84b71b98489ab01fb06bec3bad7af"
qt.bluetooth.bluez: Found uuid: "{afd7bac3-be06-fb01-ab89-84b9714bb8e8}" start
handle: 1b end handle: 2d
service discovered
qt.bluetooth.bluez: Sending read_by_group_type request, startHandle: 2e
endHandle: ffff 2800
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: Received size: 22 data:
"11142e0044000adea862315e215dbab961a5b3dc493c"
qt.bluetooth.bluez: Found uuid: "{3c49dcb3-a561-b9ba-5d21-5e3162a8de0a}" start
handle: 2e end handle: 44
service discovered
qt.bluetooth.bluez: Sending read_by_group_type request, startHandle: 45
endHandle: ffff 2800
qt.bluetooth.bluez: Received size: 22 data:
"11144500fffffac79ce402ae50e53c3c6b32ffba88f7"
qt.bluetooth.bluez: Found uuid: "{f788baff-326b-3c3c-e550-ae02e49cc7fa}" start
handle: 45 end handle: ffff
service discovered
qt.bluetooth.bluez: Sending read_by_group_type request, startHandle: 1
endHandle: ffff 2801
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: Received size: 5 data: "011001000a"
qt.bluetooth.bluez: Error1: "no attribute in given range found" last command:
10 handle: 1
m_controller discoveryFinished
qt.bluetooth.bluez: HCI event triggered, type: 13
qt.bluetooth.bluez: HCI event triggered, type: 5
qt.bluetooth.bluez: void QBluetoothSocketPrivate::_q_readNotify() 19 error: -1
"Connection reset by peer"
m_controller disconnected
qt.bluetooth.bluez: BluetoothManagement: Ignored event: c
B.R.
Jie
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