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| {{PageHeader|VAR-SOM-MX6 - Bluetooth}} {{DocImage|category1=VAR-SOM-MX6|category2=Yocto}} __toc__
| | #REDIRECT [[IMX Bluetooth]] |
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| = Bluetooth boot messages =
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| During boot the following Bluetooth kernel messages are received:
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| <pre>$ dmesg | grep -i Bluetooth
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| [ 0.233230] Bluetooth: Core ver 2.18
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| [ 0.233273] Bluetooth: HCI device and connection manager initialized
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| [ 0.233286] Bluetooth: HCI socket layer initialized
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| [ 0.233298] Bluetooth: L2CAP socket layer initialized
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| [ 0.233331] Bluetooth: SCO socket layer initialized
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| [ 1.963274] Bluetooth: HCI UART driver ver 2.2
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| [ 1.966442] Bluetooth: HCI H4 protocol initialized
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| [ 1.969938] Bluetooth: HCI BCSP protocol initialized
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| [ 1.973606] Bluetooth: HCILL protocol initialized
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| [ 1.977029] Bluetooth: HCI Three-wire UART (H5) protocol initialized
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| [ 3.313905] Bluetooth: RFCOMM TTY layer initialized
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| [ 3.317503] Bluetooth: RFCOMM socket layer initialized
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| [ 3.321376] Bluetooth: RFCOMM ver 1.11
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| [ 3.323859] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
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| [ 3.327876] Bluetooth: BNEP filters: protocol multicast
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| [ 3.331814] Bluetooth: BNEP socket layer initialized
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| [ 3.335498] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
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| [ 3.340131] Bluetooth: HIDP socket layer initialized </pre>
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| = Device identification =
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| After the File system is up 'hciconfig' should show the connected bluetooth module.
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| <pre>root@var-som-mx6:~# hciconfig
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| hci0: Type: BR/EDR Bus: UART
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| BD Address: 50:72:24:11:EF:B0 ACL MTU: 1021:6 SCO MTU: 180:4
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| UP RUNNING PSCAN
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| RX bytes:701 acl:0 sco:0 events:44 errors:0
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| TX bytes:2233 acl:0 sco:0 commands:44 errors:0
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| </pre>
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| The hcitool can be used to show the Bluetooth MAC address of the Bluetooth module with the respective hci connection. Type help to show commands.
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| <pre>root@var-som-mx6:~# hcitool dev
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| Devices:
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| hci0 50:72:24:11:EF:B0
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| </pre>
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| = Managing bluetooth =
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| You can manage bluetooth with bluetoothctl, type 'bluetoothctl' and enter the interface. Type help to show commands.</br>
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| For connecting a device do the following:</br>
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| <pre>
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| $ bluetoothctl
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| [bluetooth]# power on | |
| [bluetooth]# default-agent
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| [bluetooth]# pairable on
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| Push the connect button in the device
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| [bluetooth]# scan on
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| Copy mac address
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| [bluetooth]# scan off
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| [bluetooth]# pair <mac address>
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| Approve pairing on Device if required
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| [bluetooth]# trust <mac address> | |
| [bluetooth]# connect <mac address>
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| [bluetooth]# quit
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| </pre>
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| For example when connecting a microsoft bluetooth mouse the following is done:</br>
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| <pre>
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| root@var-som-mx6:~# bluetoothctl
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| [NEW] Controller 50:72:24:11:EF:B0 BlueZ 5.28 [default]
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| [bluetooth]# power on
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| Changing power on succeeded
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| [bluetooth]# default-agent
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| No agent is registered
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| [bluetooth]# pairable on
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| Changing pairable on succeeded
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| [bluetooth]# scan on
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| Discovery started
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| [CHG] Controller 50:72:24:11:EF:B0 Discovering: yes
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| [NEW] Device 00:1D:D8:39:93:46 Microsoft Bluetooth Notebook Mouse 5000
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| [bluetooth]# scan off
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| [CHG] Device 00:1D:D8:39:93:46 RSSI is nil
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| Discovery stopped
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| [CHG] Controller 50:72:24:11:EF:B0 Discovering: no
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| [bluetooth]# pair 00:1D:D8:39:93:46
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| Attempting to pair with 00:1D:D8:39:93:46
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| [CHG] Device 00:1D:D8:39:93:46 Connected: yes
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| [CHG] Device 00:1D:D8:39:93:46 Modalias: usb:v045Ep0700d0100
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| [CHG] Device 00:1D:D8:39:93:46 UUIDs:
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| 00001000-0000-1000-8000-00805f9b34fb
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| 00001124-0000-1000-8000-00805f9b34fb
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| 00001200-0000-1000-8000-00805f9b34fb
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| [CHG] Device 00:1D:D8:39:93:46 Paired: yes
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| Pairing successful
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| [CHG] Device 00:1D:D8:39:93:46 Connected: no
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| [bluetooth]# trust 00:1D:D8:39:93:46
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| [CHG] Device 00:1D:D8:39:93:46 Trusted: yes
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| Changing 00:1D:D8:39:93:46 trust succeeded
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| [bluetooth]# connect 00:1D:D8:39:93:46
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| Attempting to connect to 00:1D:D8:39:93:46
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| [CHG] Device 00:1D:D8:39:93:46 Connected: yes
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| [bluetooth]# hid-generic 0005:045E:0700.0001: unknown main item tag 0x0
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| input: Microsoft Bluetooth Notebook Mouse 5000 as /devices/soc0/soc.0/2100000.aips-bus/21e8000.serial/tty/ttymxc1/hci0/hci0:1/0005:045E:0700.0001/input/input1
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| Connection successful
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| [bhid-generic 0005:045E:0700.0001: input: BLUETOOTH HID v1.00 Mouse [Microsoft Bluetooth Notebook Mouse 5000] on 50:72:24:11:ef:b0
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| [bluetooth]# quit
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| [DEL] Controller 50:72:24:11:EF:B0 BlueZ 5.28 [default]
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| root@var-som-mx6:~#
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| </pre>
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| = File Transfer =
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| Sending a file from the board to the bluetooth device using the obex transfer.
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| 1) First, establish connection to the device as described above.</br>
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| 2) Start obex daemon and obexctl. Type help to show commands. <pre>
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| $ export DISPLAY=:0.0
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| $ /usr/lib/bluez5/bluetooth/obexd &
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| $ obexctl
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| </pre>
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| 3) connect to Device
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| <pre>[obex]# connect <mac addr>
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| </pre>
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| 4) Send a file from obexctl to the device
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| <pre>[<mac addr>]# send <file>
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| </pre>
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| 5) Once it's done, close the session <pre>
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| [<mac addr>]# disconnect
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| [<mac addr>]# quit
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| </pre>
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