linux-kernel - Re: [PATCH RESEND 0/5] HID: multitouch: Add support for Touch Bars on x86 MacBook Pros

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Message-ID: <67829qr8-op53-7q0s-n858-9psq5sqopo45@xreary.bet>
Date: Tue, 25 Mar 2025 13:52:42 +0100 (CET)
From: Jiri Kosina <jikos@...nel.org>
To: Aditya Garg <gargaditya08@...e.com>, 
    Benjamin Tissoires <benjamin.tissoires@...hat.com>
cc: "bentiss@...nel.org" <bentiss@...nel.org>, 
    Kerem Karabay <kekrby@...il.com>, 
    Orlando Chamberlain <orlandoch.dev@...il.com>, 
    Aun-Ali Zaidi <admin@...eit.net>, 
    Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, 
    "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>
Subject: Re: [PATCH RESEND 0/5] HID: multitouch: Add support for Touch Bars
 on x86 MacBook Pros

On Mon, 10 Mar 2025, Aditya Garg wrote:

> Hi all!
> 
> This patch series aims to improve the Touch Bar support for x86 Macs.
> 
> Recently, the hid-appletb-kbd and hid-appletb-bl drivers were upstreamed
> into the Linux kernel [1]. They enabled the Touch Bar to display a
> predefined set of media and function keys, exactly the same it does on
> Windows Bootcamp.
> 
> Now we are about to get support added for the DRM mode of the Touch Bar
> as well [2].
> 
> The DRM mode enables the Touch Bar to act as a second display,
> just like macOS. So now you can add a widget, put a clock or anything
> else on the Touch Bar as long as you can develop a daemon.
> 
> Now via these patches, in the DRM mode, we can use the Touch Bar as a
> touch screen. The Touch Bar seems to be not compliant with the HID spec,
> thus via these patches several tweaks have been done under the cover of
> a single quirk, MT_QUIRK_APPLE_TOUCHBAR.
> 
> For the case of T2 Macs, apple-bce [3], the driver for the T2 Security
> Chip is also needed for all the peripherals, including the Touch Bar
> to work. It is still WIP, and will be subsequently sent later to the
> appropriate tree. Till then, I'll suggest for get the driver from [3],
> or more preferably, get Linux support from https://t2linux.org/.

Benjamin, could you please Ack this series?

Thanks,

-- 
Jiri Kosina
SUSE Labs