How to pair bluetooth Dongle connected with IMX6 SD board and Android phone.

[ajaypatel]

Hello,

I have connected USB bluetooth dongle with i.mx6 sabre-sd board. I have built the YOCTO which bluez4 support by default enabled. After bootup the imx6 board, I have used following command to verify bluetooth functionality. ( I have enabled the Bluetooth support in Linux kernel 3.10.17 ).

hciconfig -a

hci0:   Type: BR/EDR  Bus: USB

        BD Address: 00:15:83:15:A3:10  ACL MTU: 339:8  SCO MTU: 128:2

        UP RUNNING

        RX bytes:1347 acl:0 sco:0 events:48 errors:0

        TX bytes:204 acl:0 sco:0 commands:48 errors:0

        Features: 0xff 0x3e 0x85 0x30 0x18 0x18 0x00 0x00

        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3

        Link policy: RSWITCH HOLD SNIFF

        Link mode: SLAVE ACCEPT

        Name: ''

        Class: 0x000104

        Service Classes: Unspecified

        Device Class: Computer, Desktop workstation

        HCI Version: 2.0 (0x3)  Revision: 0xc5c

        LMP Version: 2.0 (0x3)  Subversion: 0xc5c

        Manufacturer: Cambridge Silicon Radio (10)

hciconfig hci0 up

hcitool scan

Scanning ...

        78:1F:DB:B9:87:4F       Galaxy S4

Above commands make sure that I am able to detect the my android device. Now I have tried to pair my android phone with bluetooth dongle connected with i.mx6 board. I have used following command to do this:

rfcomm connect rfcomm0 78:1F:DB:B9:87:4F 2 &

On issuing this command, my android phone ask for the passkey. I have entered the default passkey "0000" or "1234" but it did not work for me and show below error in linux kernel

[1] 1976

root@imx6qsabresd:~# Can't connect RFCOMM socket: Operation now in progress

^C

[1]+  Done                    rfcomm connect rfcomm0 78:1F:DB:B9:87:4F 2

Is there anything missing to enable the bluetooth support ? Is there any help for passkey ?

One more thing, I have also tried to replace the bluez4 with bluez5 in YOCTO build and for that I have modified the local configuration file with below change :

CORE_IMAGE_EXTRA_INSTALL += "libedit bluez5"

But in build I got errors not able to build the image. Error is like below:

error: Can't install bluez4-4.101-r5@cortexa9_vfp_neon: conflicted package bluez5-5.7-r0@cortexa9_vfp_neon is locked

Does anyone has done task to add support for the bluez5 in YOCTO build?

Thanks,

Ajay-

[Navii]

Hi,

I have connected bluetooth dongle in imx6.

by Bluetoothctl command I am trying to scan.

scan on ---------> worked succesfully

pair 99:ss:e3:44:r4:88 --------> paired succesfully

connect 99:ss:e3:44:r4:88 --------> Failed to connect: org.bluez.Error.Failed.

but i am tring to ping ----> l2ping 99:ss:e3:44:r4:88 ----> pinged successfully.

Failed to connect: org.bluez.Error.Failed.   -----------------> how to resolve this error

[alejandrolozan1]

Hi,

Have you tried to change the hcid.conf file?

It is probable that you have a different configuration and the passkey is different.

hcid.conf(5): config file for hcid Bluetooth - Linux man page

/Alejandro

[ajaypatel]

Hello,

Thanks for the feedback.

There is no hcid.conf file at /etc/bluetooth location.

I have also tried some other approaches. I have installed the bluez5 in YOCTO build along with its tools like simple-agent and used following commands to pair the bluetooth dongle connected with i.mx6 board with my samsung s4.

hciconfig -a

hciconfig hci0 up

/usr/lib/bluez5/bluetooth/bluetoothd -d &

bluetoothctl

power on

agent on

default-agent

scan on  // This finds my mobile as bluetooth device. ( 78:1F:DB:B9:87:4F )

pair 78:1F:DB:B9:87:4F

// For this command I got the authentication error every time and not able to pair the device.

Thanks,

Ajay-

[Navii]

Hai,

I also paried successfully ,
But in connect a2:ee:44:77:gg:99 facing error: org.bluez.error

how to resolve?

[alejandrolozan1]

Hi,

Just to narrow down the issue I wonder if you can follow the next document:

All Boards Bluetooth Dongle

You will need a bluetooth dongle.

/Alejandro