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I am trying to listen to an Android phone device and display it in console (basically establish connection and verify that it works).

I am not sure if this is the issue with Ubuntu drivers. Can I request anyone to let me know any possible solutions or even the direction I should be looking for? Any help will be gratefully acknowledged.

Edit As per @vidarlo 's valuable comments, I am adding the following details: I am trying to run my custom Joypad app that I had built along the lines of github.com/TraQuad/TraQuad-Controller three years ago. It was working beautifully with Windows. I wish to use that android joypad (similar to Arduino BT Joystick free) and run my simulator in Ubuntu. I am not sure if Sony has disabled that profile via system updates. sdptool browse gave the following result: https://pastebin.com/s90jZWis

Edit 3

I am able to see /dev/rfcomm0 now after following Bluetooth on Ubuntu 16.04 (maybe, it is also due to some of the other posts I tried). However, when I try Unable to create dev/rfcomm port , I get

sudo picocom -c /dev/rfcomm0 picocom v2.2

port is : /dev/rfcomm0 flowcontrol : none baudrate is : 9600 parity is : none databits are : 8 stopbits are : 1 escape is : C-a local echo is : yes noinit is : no noreset is : no nolock is : no send_cmd is : sz -vv receive_cmd is : rz -vv -E imap is : omap is : emap is : crcrlf,delbs,

Type [C-a] [C-h] to see available commands

Terminal ready

FATAL: term closed

Edit 4 It is highly likely that I have used insecure connection as Xperia Dual M2 device is quite old. I was going through Android documentation https://developer.android.com/reference/android/bluetooth/BluetoothDevice.html#createInsecureRfcommSocketToServiceRecord(java.util.UUID) and the reference code https://github.com/TraQuad/TraQuad-Controller/blob/master/app/src/main/java/com/example/prasadnr/traquad/ProJoypad.java#L759 I have used 00001101-0000-1000-8000-00805F9B34FB . So, the question reduces to How can I listen to insecure bluetooth serial connection in Ubuntu?

Edit 5 I am trying https://askubuntu.com/a/104954/950668 and https://stackoverflow.com/a/13041129/10978972 But, I am not able to get it working even now.

Edit 6 I tried to run sudo rfcomm connect rfcomm0 A0:E4:53:D8:91:80 and I got Can't connect RFCOMM socket: Connection refused . So, I was going through this https://stackoverflow.com/a/52221644/10978972 . But, I did not find Service Name: Serial Port after running the command. So, is this the problem with Ubuntu or with the Android phone?

user10978972
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  • What do you want to transport over the connection? Bluetooth supports many different profiles, including serial, audio and file transport. rfcomm0 indicates that you're looking for a serial connection to the phone. Is this correct? Are you sure your phone supports it? – vidarlo Apr 28 '19 at 17:23
  • It is to be noted that cross posting is discouraged on stack exchange network – Kulfy Apr 28 '19 at 17:25
  • @Kulfy I don't think that's relevant here. It's two different questions, and this one is at least somewhat related to Ubuntu. – vidarlo Apr 28 '19 at 17:44
  • Vidarlo, Thank you. Yes. I am looking for serial connection. @Kulfy Thanks for letting me know. I was not sure as to which site this question belongs to and they are mostly two different questions. Vidarlo, Thanks for mentioning that the question is related to Ubuntu. Yes. I was just making sure that the Ubuntu part is correct. – user10978972 Apr 29 '19 at 05:09
  • What do you want to use your serial connection for? I checked with my phone, which is a xperia with android as well, and it does not appear to support that bluetooth profile. You can list accessible profiles with sdptool browse <baddr> – vidarlo Apr 29 '19 at 05:15
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    @vidarlo Thanks for the quick response and checking with Xperia. I am trying to run my custom Joypad app that I had built along the lines of github.com/TraQuad/TraQuad-Controller three years ago. It was working beautifully with Windows. I wish to use that android joypad (similar to Arduino BT Joystick free) and run my simulator n Ubuntu. I am not sure if Sony has disabled that profile via system updates.

    sdptool browse gave the following result: https://pastebin.com/dLiLa1RY

     – user10978972 Apr 29 '19 at 05:26
  • That changes the question quite a bit, as you're trying to connect to a specific thing on the phone. I suggest you include that information in your question - and it renders my comments above void and invalid :) – vidarlo Apr 29 '19 at 05:28
  • @vidarlo Done :) I am not sure as to why your valuable comments would be invalid though. Because, it is actually making me believe few of my suspicions. – user10978972 Apr 29 '19 at 05:35

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