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From: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Date: Fri, 15 Mar 2024 17:10:51 -0400
Message-ID: <CABBYNZJEHQK5VGQ1p934UAp6nx+mGyV8KTwzvAaiXp19niuyRg@mail.gmail.com>
Subject: Re: Bluetoothctl Fail when typing power on
To: Chris Laplante <Chris.Laplante@lairdconnect.com>
Cc: "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
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Hi Chris,

On Fri, Mar 15, 2024 at 4:07=E2=80=AFPM Chris Laplante
<Chris.Laplante@lairdconnect.com> wrote:
>
> Hi Luiz,
>
> Thanks for the quick response.
>
> I am using btattach.
>
> Btmon shows Bluetooth failed to set mode: Failed
>
> It seems like there is a lot of messaging going on so communication HW wi=
se appears ok.

Just scroll down to the end:

< HCI Command: Reset (0x03|0x0003) plen 0                  #83 [hci0] 37.50=
5694
> HCI Event: Hardware Error (0x10) plen 1                  #84 [hci0] 37.50=
7119
        Code: 0x00

Btw, it might be a good idea to attempt with a newer kernel since 5.15
is not that new compared to BlueZ 5.65, so you may run into
incompatibilities depending on what you want to do, and if you are
looking into central+peripheral that landed after 5.15 was released.


> Chris
>
> -----Original Message-----
> From: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
> Sent: Friday, March 15, 2024 3:48 PM
> To: Chris Laplante <Chris.Laplante@lairdconnect.com>
> Cc: linux-bluetooth@vger.kernel.org
> Subject: Re: Bluetoothctl Fail when typing power on
>
> EXTERNAL EMAIL: Be careful with attachments and links.
>
> Hi Chris,
>
> On Fri, Mar 15, 2024 at 3:40=E2=80=AFPM Chris Laplante <Chris.Laplante@la=
irdconnect.com> wrote:
> >
> > In BlueZ 5.65 I am able to attach. When I go into bluetoothctl I can se=
e my device address. When I type power on I see the following error:
> >
> > Failed to set power on: org.bluez.Error.Failed
> >
> > I have found a few threads online where people had the same issue but t=
here doesn't seem to be any common denominator.
> >
> > I have tried rfkill list and nothing is blocked. Regardless I still typ=
e rfkill unblock Bluetooth but I still get the error.
> >
> > I have tried to stop and start the Bluetooth service.
> >
> > systemctl stop bluetooth.service
> > systemctl start bluetooth.service
> >
> > IS there something in the build environment that may be missing? Any su=
ggestions?
>
> Well if it can't be powered then there is something wrong at kernel level=
, does btmon show anything? Are you using btattach to set it up?
>
> > Thanks!
> > Chris
> > THE INFORMATION CONTAINED IN THIS DOCUMENT IS OF A PROPRIETARY NATURE
> > AND IS INTENDED TO BE KEPT CONFIDENTIAL BETWEEN THE SENDER AND THE
> > INTENDED RECIPIENT. IT MAY NOT BE REPRODUCED OR USED WITHOUT EXPRESS
> > WRITTEN PERMISSION OF EZURIO
> >
>
>
> --
> Luiz Augusto von Dentz
> THE INFORMATION CONTAINED IN THIS DOCUMENT IS OF A PROPRIETARY NATURE AND=
 IS INTENDED TO BE KEPT CONFIDENTIAL BETWEEN THE SENDER AND THE INTENDED RE=
CIPIENT. IT MAY NOT BE REPRODUCED OR USED WITHOUT EXPRESS WRITTEN PERMISSIO=
N OF EZURIO


--=20
Luiz Augusto von Dentz