Hi Luiz,
On 01/11/2021 21:21, Luiz Augusto von Dentz wrote:
On Mon, Nov 1, 2021 at 10:26 AM Jacek Konieczny <jajcus@xxxxxxxxxx> wrote:
So it looks like 'Bonding, MITM, Legacy, No Keypresses' used by Android
works and 'Bonding, No MITM, SC, No Keypresses, CT2' used by the desktop
Linux (bluez 5.62, kernel '5.6.2-050602-lowlatency' from Ubuntu) does
not (note: I am still quite ignorant about Bluetooth stuff).
What android version are we talking about here?
Android 11 on Samsung Galaxy S10 with current software.
So my question is: is there any way to force using legacy pairing? Even
if that requires bluez or kernel patching (though, I would rather avoid
that).
So Invalid Parameter is normally used when the stack doesn't
understand something in the request:
'x0A Invalid Parameters The Invalid Parameters error code indicates
that the command length is invalid or that a
parameter is outside of the specified range.'
From the looks of it Android doesn't set SC nor CT2, which were bits
introduced after 4.0, so perhaps with this version of Android we
cannot use one of these bits (CT2 most likely).
The problem is not the Android, but the device I am trying to pair with
(VOX Adio Air GT guitar amplifier). The Bluetooth implementation in the
device is most probably outdated or/and broken and definitely insecure,
but I still need to connect to it. Android can do that, I wonder how I
can do it from a regular Linux machine with recent kernel and Bluez.
Jacek
