Algorithm for create serial connection without rfcomm

Algorithm for create serial connection without rfcomm

[Проклов Александр Валерьевич]

Hi all,

The rfcomm command is deprecated, what is the use of the algorithm to 
create serial connections?

Whether it is possible to create /dev/rfcomm not using rfcomm command 
through Dbus or another utility from Bluez5?

In many forums, people also ask this question, and everything is decided 
by adding rfcomm command.

--------------
Best regards,
Aleksandr Proklov

Re: Algorithm for create serial connection without rfcomm

[Проклов Александр Валерьевич]

Thank you Barry Byford,

Your example is more understandable for me, but I do not know python.
If I understand correctly, the algorithm is as follows:
1. Connect to device (pair, connect)
2. "Release" profile
3. "RegisterProfile" with parameters. profile_path - path for new 
profile on Dbus?

After RegisterProfile device port /dev/rfcomm created automatic or need 
more operation?

4. For disconnect make RequestDisconnection



26.04.2018 21:39, Barry Byford пишет:
> Hello Aleksandr ,
>
> I believe that the following example in the tree is intended to serve
> the purpose.
> https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/test/test-profile
>
> I couldn't workout the correct command line switches to get this
> working so I did my own experiment and came up with the follow gist
> for Serial Port Profile:
> https://gist.github.com/ukBaz/217875c83c2535d22a16ba38fc8f2a91
>
> I hope that helps.
>
> Regards,
> Barry
>
>
> On 25 April 2018 at 08:53, Проклов Александр Валерьевич
> <ProklovAV@zabzd.ru> wrote:
>> Hi all,
>>
>> The rfcomm command is deprecated, what is the use of the algorithm to create
>> serial connections?
>>
>> Whether it is possible to create /dev/rfcomm not using rfcomm command
>> through Dbus or another utility from Bluez5?
>>
>> In many forums, people also ask this question, and everything is decided by
>> adding rfcomm command.
>>
>> --------------
>> Best regards,
>> Aleksandr Proklov
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth"
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>

Re: Algorithm for create serial connection without rfcomm

[Проклов Александр Валерьевич]

No, nothing is clear yet.

I use bash script for manage bluetooth, dbus-send command help me use DBus.

All programm need serial device ex: /dev/ttyS0 or for bluetooth 
/dev/rfcomm0 created.

I can not understand whether a device will be created, or it should be 
created by myself. And how to create a device with a given name ex: 
/dev/rfcomm0

After run ./spp-profile  script will the device file be created in /dev 
directory?

May be 'bluetoothctl devices' not right?

[Проклов Александр Валерьевич]

Hi all,

The 'devices' command 'List available devices' should show all founded 
devices after 'scan on' (all visible paired and unpaired devices?).

Now (git version bluetoothctl) 'devices' command show visible devices 
and all paired devices even if the device is turned off (not available).

May be exclude the display of paired devices that are turned off (not 
available)?

--------------
Best regards,
Aleksandr Proklov

Re: May be 'bluetoothctl devices' not right?

[Проклов Александр Валерьевич]

Maybe you know the standart method to check availability of the device ?

Now i use l2ping command for this.



01.08.2019 13:35, Проклов Александр Валерьевич пишет:
> Hi all,
>
> The 'devices' command 'List available devices' should show all founded
> devices after 'scan on' (all visible paired and unpaired devices?).
>
> Now (git version bluetoothctl) 'devices' command show visible devices
> and all paired devices even if the device is turned off (not available).
>
> May be exclude the display of paired devices that are turned off (not
> available)?
>
> --------------
> Best regards,
> Aleksandr Proklov