Return-Path: Message-ID: <58517.86.105.94.79.1414160561.squirrel@boosthardware.com> Date: Sat, 25 Oct 2014 01:22:41 +1100 (EST) Subject: [bluetooth] btusb duplicate filtering From: "Patrick Shirkey" To: linux-bluetooth@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Hi, I am seeing the following behaviour with an android device running the 8723au chipset with bluez + backports + btusb.c (new branch). Step 1: 1: enable BT via settings UI 2: open BLE scanner app 3: app finds all BLE devices Step 2: 4: close BLE scanner app 5: open BLE scanner app 6: app cannot find any BLE device - Szymon has suggested it is related to duplicate filtering and may be handled at the driver or chipset firmware level. - I found this post which might provide some useful background info. http://stackoverflow.com/questions/19502853/android-4-3-ble-filtering-behaviour-of-startlescan - My question is can I do anything at the driver/kernel/bluez level so that BLE devices always show up? LOGS - I see the following output in logcat: Step 1: 10-24 07:06:27.450 D/TAG (13289): ~ Starting Scan 10-24 07:06:27.450 D/BluetoothAdapter(13289): startLeScan(): null 10-24 07:06:27.450 D/BtGatt.GattService(13351): registerClient() - UUID=3ed977cb-dddb-4518-af26-eb41adb97c38 10-24 07:06:27.450 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/gatt.c:handle_client_register() 10-24 07:06:27.460 D/BtGatt.GattService(13351): onClientRegistered() - UUID=3ed977cb-dddb-4518-af26-eb41adb97c38, clientIf=1 10-24 07:06:27.460 D/BluetoothAdapter(13289): onClientRegistered() - status=0 clientIf=1 10-24 07:06:27.460 D/BtGatt.GattService(13351): startScan() - queue=0 10-24 07:06:27.460 D/BtGatt.GattService(13351): startScan() - adding client=1 10-24 07:06:27.470 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/gatt.c:handle_client_scan() new state 1 10-24 07:06:27.470 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:start_discovery() type=0x6 10-24 07:06:27.470 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_discovering_event() type 6 discovering 1 10-24 07:06:27.480 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:check_discovery_state() 6 0 10-24 07:06:27.510 W/InputMethodManagerService( 1612): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@41a51080 attribute=null, token = android.os.BinderProxy@41aa49c0 10-24 07:06:27.530 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_device_found_event() hci0 addr BC:6A:29:AB:2C:AA, rssi -36 flags 0x0000 eir_len 25 10-24 07:06:27.530 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/gatt.c:le_device_found_handler() LE Device found: BC:6A:29:AB:2C:AA, rssi: -36, adv_data: 1 10-24 07:06:27.540 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:handle_device_found() 10-24 07:06:27.550 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[0]: type=BT_PROPERTY_BDADDR len=6 val=bc:6a:29:ab:2c:aa 10-24 07:06:27.550 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[1]: type=BT_PROPERTY_TYPE_OF_DEVICE len=4 val=BT_DEVICE_DEVTYPE_BLE 10-24 07:06:27.550 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[2]: type=BT_PROPERTY_REMOTE_RSSI len=4 val=220 10-24 07:06:27.550 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[3]: type=BT_PROPERTY_BDNAME len=17 val=BC:6A:29:AB:2C:AA 10-24 07:06:27.580 D/BtGatt.GattService(13351): onScanResult() - address=BC:6A:29:AB:2C:AA, rssi=-36 10-24 07:06:27.580 D/BluetoothAdapter(13289): onScanResult() - Device=BC:6A:29:AB:2C:AA RSSI=-36 10-24 07:06:27.690 D/BluetoothEventManager( 1767): DeviceFoundHandler created new CachedBluetoothDevice: BC:6A:29:AB:2C:AA 10-24 07:06:27.730 D/android.widget.GridLayout(13289): horizontal constraints: x2-x0>=376, x2-x1<=187, x1-x0<=81 are inconsistent; permanently removing: x2-x1<=187. 10-24 07:06:37.720 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_device_found_event() hci0 addr BC:6A:29:AB:2D:17, rssi -48 flags 0x0000 eir_len 25 10-24 07:06:37.720 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/gatt.c:le_device_found_handler() LE Device found: BC:6A:29:AB:2D:17, rssi: -48, adv_data: 1 10-24 07:06:37.730 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_discovering_event() type 6 discovering 0 10-24 07:06:37.730 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:handle_device_found() 10-24 07:06:37.730 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:check_discovery_state() 0 6 10-24 07:06:37.730 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:start_discovery() type=0x6 10-24 07:06:37.740 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[0]: type=BT_PROPERTY_BDADDR len=6 val=bc:6a:29:ab:2d:17 10-24 07:06:37.740 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[1]: type=BT_PROPERTY_TYPE_OF_DEVICE len=4 val=BT_DEVICE_DEVTYPE_BLE 10-24 07:06:37.740 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[2]: type=BT_PROPERTY_REMOTE_RSSI len=4 val=208 10-24 07:06:37.740 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_discovering_event() type 6 discovering 1 10-24 07:06:37.740 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:check_discovery_state() 6 0 10-24 07:06:37.750 D/BlueZ (13351): external/bluetooth/bluez/android/hal-bluetooth.c:device_props_to_hal() prop[3]: type=BT_PROPERTY_BDNAME len=17 val=BC:6A:29:AB:2D:17 10-24 07:06:37.770 D/BtGatt.GattService(13351): onScanResult() - address=BC:6A:29:AB:2D:17, rssi=-48 10-24 07:06:37.780 D/BluetoothAdapter(13289): onScanResult() - Device=BC:6A:29:AB:2D:17 RSSI=-48 10-24 07:06:37.870 D/android.widget.GridLayout(13289): horizontal constraints: x2-x0>=376, x2-x1<=187, x1-x0<=81 are inconsistent; permanently removing: x2-x1<=187. 10-24 07:06:37.870 D/BluetoothEventManager( 1767): DeviceFoundHandler created new CachedBluetoothDevice: BC:6A:29:AB:2D:17 Step 2: 10-24 07:15:09.150 D/TAG (13289): ~ Starting Scan 10-24 07:15:09.150 D/BluetoothAdapter(13289): startLeScan(): null 10-24 07:15:09.170 D/BtGatt.GattService(13351): registerClient() - UUID=e423968e-1bfe-4822-a62b-83804fb6998d 10-24 07:15:09.170 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/gatt.c:handle_client_register() 10-24 07:15:09.170 D/BtGatt.GattService(13351): onClientRegistered() - UUID=e423968e-1bfe-4822-a62b-83804fb6998d, clientIf=2 10-24 07:15:09.170 D/BluetoothAdapter(13289): onClientRegistered() - status=0 clientIf=2 10-24 07:15:09.170 D/BtGatt.GattService(13351): startScan() - queue=0 10-24 07:15:09.180 D/BtGatt.GattService(13351): startScan() - adding client=2 10-24 07:15:09.180 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/gatt.c:handle_client_scan() new state 1 10-24 07:15:09.180 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:start_discovery() type=0x6 10-24 07:15:09.190 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_discovering_event() type 6 discovering 1 10-24 07:15:09.190 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:check_discovery_state() 6 0 10-24 07:15:09.250 W/InputMethodManagerService( 1612): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@41b85ab8 attribute=null, token = android.os.BinderProxy@41afac00 10-24 07:15:19.440 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_discovering_event() type 6 discovering 0 10-24 07:15:19.440 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:check_discovery_state() 0 6 10-24 07:15:19.450 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:start_discovery() type=0x6 10-24 07:15:19.460 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:mgmt_discovering_event() type 6 discovering 1 10-24 07:15:19.460 I/bluetoothd(13365): bluetoothd[13366]: external/bluetooth/bluez/android/bluetooth.c:check_discovery_state() 6 0 - I see the following output in btmon: Step 1: # btmon Bluetooth monitor ver 5.23 = New Index: CC:D2:9C:73:CB:45 (BR/EDR,USB,hci0) [hci0] 0.921673 < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 6.885250 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 6.886777 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 6.891384 Address: 33:31:38:D9:1B:2E (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 6.892774 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 6.892944 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 6.894777 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 6.895268 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 6.896768 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 17.165233 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 17.166804 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 17.172436 Address: 30:D0:1B:39:11:67 (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 17.173779 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 17.173957 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 17.175784 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 17.175969 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 17.182437 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 27.445182 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 27.446769 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 27.452355 Address: 1F:D8:B6:3C:C6:59 (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 27.453758 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 27.453928 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 27.461737 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 27.462099 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 27.464075 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 37.725179 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 37.726766 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 37.732082 Address: 26:B7:AE:E6:75:57 (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 37.733782 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 37.734090 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 37.735758 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 37.735871 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 37.736753 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 48.005204 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 48.006786 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 48.016702 Address: 06:D6:55:3D:29:5F (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 48.017777 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 48.018674 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 48.019771 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 48.019967 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 48.021775 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 58.290259 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 58.291852 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 58.297162 Address: 06:E6:71:FF:BA:41 (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 58.298778 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 58.299040 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 58.300779 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 58.301042 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 58.302784 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 68.565182 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 68.566772 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 68.573095 Address: 25:42:7A:0D:BF:7D (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 68.574788 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 68.575193 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 68.576785 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 68.577027 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 68.584697 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 78.845191 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 78.846780 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 78.853717 Address: 3A:B8:26:AA:9B:12 (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 78.854825 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 78.856067 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 78.857777 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 78.859335 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 78.864484 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) /// Step 2: < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 99.375289 Address: 25:61:0F:37:30:99 (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 99.378071 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 99.379701 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 99.380778 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 99.380939 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 99.382768 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 109.645175 Scanning: Disabled (0x00) Filter duplicates: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 109.646778 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x00 (6) < HCI Command: LE Set Random Address (0x08|0x0005) plen 6 [hci0] 109.652523 Address: 3F:4D:C3:01:6A:72 (Non-Resolvable) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 109.653782 LE Set Random Address (0x08|0x0005) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 109.654052 Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 109.655774 LE Set Scan Parameters (0x08|0x000b) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 109.656344 Scanning: Enabled (0x01) Filter duplicates: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 [hci0] 109.657769 LE Set Scan Enable (0x08|0x000c) ncmd 2 Status: Success (0x00) @ Discovering: 0x01 (6) -- Patrick Shirkey Boost Hardware Ltd