linux-kernel - Re: [PATCH v2] Bluetooth: Add ABI doc for sysfs reset

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Message-ID: <CABBYNZ+vwXNcP3gHhVdDHDZ9maA5rT_fOgyg3VkAy5gO8x5ocw@mail.gmail.com>
Date: Tue, 21 Jan 2025 11:38:57 -0500
From: Luiz Augusto von Dentz <luiz.dentz@...il.com>
To: Hsin-chen Chuang <chharry@...gle.com>
Cc: linux-bluetooth@...r.kernel.org, pmenzel@...gen.mpg.de, 
	chromeos-bluetooth-upstreaming@...omium.org, 
	Hsin-chen Chuang <chharry@...omium.org>, Johan Hedberg <johan.hedberg@...il.com>, 
	Marcel Holtmann <marcel@...tmann.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] Bluetooth: Add ABI doc for sysfs reset

Hi Hsin-chen,

On Mon, Jan 20, 2025 at 3:47 AM Hsin-chen Chuang <chharry@...gle.com> wrote:
>
> From: Hsin-chen Chuang <chharry@...omium.org>
>
> The functionality was implemented in commit 0f8a00137411 ("Bluetooth:
> Allow reset via sysfs")
>
> Fixes: 0f8a00137411 ("Bluetooth: Allow reset via sysfs")
> Signed-off-by: Hsin-chen Chuang <chharry@...omium.org>
> ---
>
> Changes in v2:
> - Resolved review comments from Paul
>
>  Documentation/ABI/stable/sysfs-class-bluetooth | 9 +++++++++
>  MAINTAINERS                                    | 1 +
>  2 files changed, 10 insertions(+)
>  create mode 100644 Documentation/ABI/stable/sysfs-class-bluetooth
>
> diff --git a/Documentation/ABI/stable/sysfs-class-bluetooth b/Documentation/ABI/stable/sysfs-class-bluetooth
> new file mode 100644
> index 000000000000..36be02471174
> --- /dev/null
> +++ b/Documentation/ABI/stable/sysfs-class-bluetooth
> @@ -0,0 +1,9 @@
> +What:          /sys/class/bluetooth/hci<index>/reset
> +Date:          14-Jan-2025
> +KernelVersion: 6.13
> +Contact:       linux-bluetooth@...r.kernel.org
> +Description:   This write-only attribute allows users to trigger the vendor reset
> +               method on the Bluetooth device when arbitrary data is written.
> +               The reset may or may not be done through the device transport
> +               (e.g., UART/USB), and can also be done through an out-of-band
> +               approach such as GPIO.
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 797e94ba74f7..e949c3ac7846 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -4058,6 +4058,7 @@ S:        Supported
>  W:     http://www.bluez.org/
>  T:     git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git
>  T:     git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
> +F:     Documentation/ABI/stable/sysfs-class-bluetooth
>  F:     include/net/bluetooth/
>  F:     net/bluetooth/
>
> --
> 2.48.0.rc2.279.g1de40edade-goog

We also need something similar for Bluetooth: btusb: add sysfs
attribute to control USB alt setting

-- 
Luiz Augusto von Dentz