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From:   Yun-hao Chung <howardchung@google.com>
Date:   Wed, 22 Apr 2020 23:24:31 +0800
Message-ID: <CAPHZWUdaXVtde+i4jN16bHE1mznSX1gvyDXQwrspWcRMaSniug@mail.gmail.com>
Subject: Re: Auto-connect after disconnection from user on trusted devices
To:     Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc:     Bluez mailing list <linux-bluetooth@vger.kernel.org>,
        Sonny Sasaka <sonnysasaka@google.com>
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Thanks for sharing your thoughts!

On Wed, Apr 22, 2020 at 2:12 AM Luiz Augusto von Dentz
<luiz.dentz@gmail.com> wrote:
>
> Hi,
>
> On Mon, Apr 20, 2020 at 9:30 PM Yun-hao Chung <howardchung@google.com> wrote:
> >
> > Hi linux-bluetooth,
> >
> > Bluez doesn't disable auto-connect for trusted devices even in
> > device.Disconnect. This causes users can't disconnect from peripherals
> > unless they untrust the device.
> >
> > The behavior seems to change into this way intentionally after this change:
> > https://www.spinics.net/lists/linux-bluetooth/msg72898.html
> >
> > I would like to understand why this change is needed and what is the
> > suggestion to disconnect a trusted device.
>
> This has been there for a while but if I recall correctly the problem
> is that we cannot really tell when the auto-connect was disabled,
> besides it was not really honoring that in case the daemon is
> restarted, etc, so instead of having yet another setting to persist it
> was simpler to just use the trust, or block, properties to control
> auto-connect which are persisted properly, that said maybe we can make
> disconnect auto block the device and then connect to unblock
> automatically but I think that having the application set the block
> property is probably clearer that we don't want it to be reconnected.
>
> --
> Luiz Augusto von Dentz