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From: Eisenkolb Thomas <Eisenkolb.Thomas@fronius.com>
To: "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
Subject: Bluetooth: Is it possible to operate Bluez concurrent in central and peripheral role?
Date: Thu, 11 Oct 2018 07:13:04 +0000	[thread overview]
Message-ID: <da781fd16860492a9b4d28334a593b77@fronius.com> (raw)

Hello,

I am working with blueZ 5.50 on a linux embedded device with kernel 4.14.

Now I have to implement a use case where the linux embedded device communicates as a central device with a few sensors through Bluetooth LE characteristics and at the same time it should advertise some data and accept at least one incoming connection from a Smartphone as a peripheral device for maintenance cases.

I haven't found any information about blueZ is supporting both LE roles at the same time. 
I have already tried it now for 2 days to get this use case to work and I found a few limitations for which I didn't find any solution.

I was not able to advertise any data while my device had an active connection to a peripheral device.
Also while the Smartphone is connected to my embedded device(peripheral), I don't receive any advertised Data from any sensor and I cannot connect to any sensor.

The Bluetooth Hardware Module which I am using on the embedded Linux System supports Bluetooth 4.2. From the Bluetooth Standard I have found that concurrent use of both Bluetooth Low Energy Roles should be supported since Bluetooth 4.1.

Is it possible from blueZ Stack side to implement this use-case?
If yes, can you give me some hints what I have to consider to get this case working?
If no, have you got a timeline when it will be supported or is this no planned to implement in near future?

Thanks for your answer,
Thomas



             reply	other threads:[~2018-10-11  7:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-11  7:13 Eisenkolb Thomas [this message]
2018-10-11 16:49 ` Bluetooth: Is it possible to operate Bluez concurrent in central and peripheral role? Luiz Augusto von Dentz
     [not found]   ` <bed1213e3c6d4d3abe06be95ef9aba79@fronius.com>
2018-10-12  8:20     ` Luiz Augusto von Dentz
2018-10-12 10:07       ` AW: " Eisenkolb Thomas
2018-10-12 11:15   ` Eisenkolb Thomas
2018-10-12 11:37     ` Luiz Augusto von Dentz

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