linux-kernel - Re: [PATCH v7 0/2] HID: add initial support for Goodix HID-over-SPI touchscreen

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Message-ID: <nycvar.YFH.7.76.2408192116440.12664@cbobk.fhfr.pm>
Date: Mon, 19 Aug 2024 21:17:00 +0200 (CEST)
From: Jiri Kosina <jikos@...nel.org>
To: Charles Wang <charles.goodix@...il.com>
cc: dmitry.torokhov@...il.com, dianders@...omium.org, dan.carpenter@...aro.org, 
    conor@...nel.org, robh@...nel.org, krzk+dt@...nel.org, bentiss@...nel.org, 
    hbarnor@...omium.org, linux-input@...r.kernel.org, 
    devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 0/2] HID: add initial support for Goodix HID-over-SPI
 touchscreen

On Wed, 14 Aug 2024, Charles Wang wrote:

> This patch introduces a new driver to support the Goodix GT7986U
> touch controller. This device is not compatible with Microsoft's
> HID-over-SPI protocol and therefore needs to implement its own
> flavor. The data reported is packaged according to the HID
> protocol but uses SPI for communication to improve speed. This
> enables the device to transmit not only coordinate data but also
> corresponding raw data that can be accessed by user-space programs
> through the hidraw interface. The raw data can be utilized for
> functions like palm rejection, thereby improving the touch experience.
> 
> Key features:
> - Device connection confirmation and initialization
> - IRQ-based event reporting to the input subsystem
> - Support for HIDRAW operations (GET_REPORT and SET_REPORT)
> 
> Signed-off-by: Charles Wang <charles.goodix@...il.com>

Now queued in hid.git#for-6.12/goodix-spi. Thanks,

-- 
Jiri Kosina
SUSE Labs