linux-kernel - Re: [RFC PATCH 0/3] platform/x86: Add support for Uniwill laptop features

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Message-ID: <a01af201-328b-4017-ab17-16cbc4ecfff4@gmx.de>
Date: Wed, 18 Jun 2025 00:02:45 +0200
From: Armin Wolf <W_Armin@....de>
To: Werner Sembach <wse@...edocomputers.com>, ilpo.jarvinen@...ux.intel.com,
 hdegoede@...hat.com, chumuzero@...il.com, corbet@....net, cs@...edo.de,
 ggo@...edocomputers.com
Cc: linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
 platform-driver-x86@...r.kernel.org
Subject: Re: [RFC PATCH 0/3] platform/x86: Add support for Uniwill laptop
 features

Am 16.06.25 um 14:59 schrieb Werner Sembach:

> Hi Armin,
>
> Am 15.06.25 um 19:59 schrieb Armin Wolf:
>> This patch series adds support for the various features found on
>> laptops manufactured by Uniwill. Those features are:
>>
>>   - battery charge limiting
>>   - RGB lightbar control
>>   - hwmon support
>>   - improved hotkey support
>>   - keyboard-related settings
>>
>> This patch series is based on the following out-of-tree drivers:
>>
>>   - https://github.com/pobrn/qc71_laptop
>>   - https://github.com/tuxedocomputers/tuxedo-drivers
> Better use 
> https://gitlab.com/tuxedocomputers/development/packages/tuxedo-drivers
>>
>> Additionally the OEM software of the Intel Nuc x15 was
>> reverse-engineered to have a better understanding about the underlying
>> hardware interface.
>>
>> The first patch introduces the uniwill-wmi driver used for handling
>> WMI events on Uniwill devices. Due to a grave design error inside the
>> underlying WMI firmware interface (the WMI GUID was copied from the
>> Windows driver samples and is thus not unique) the driver cannot be
>> autoloaded. Instead drivers using this module will load it as an
>> module dependency.
>>
>> The second patch introduces the uniwill-laptop driver that does the
>> majority of the work. This driver talks to the embedded controller
>> yet another WMI interface to control the various features. Sadly this
>> WMI firmware interfaces suffers from the exact same issue (the WMI
>> GUID is not unique) and thus a DMI whitelist has to be used for
>> loading the driver.
>>
>> The last patch finally adds some documentation for configuring and
>> using both drivers.
>>
>> Special thanks go to:
>>
>>   - github user cyear for bring up this topic on the lm-sensors issue
>>     tracker and being the tester for various prototype versions
>>   - github user dumingqiao for testing the battery, lightbar and
>>     keyboard-related features
>>   - Tuxedo computers for giving advice on how to design the userspace
>>     interface
>>
>> I send this series as an RFC to gather feedback and to request any
>> involved developers if they want to have their Co-developed-by tags
>> on the final patch series.
>
> Afaik most of the initial uniwill module in tuxedo-drivers was written 
> by Christoffer, he is currently on holiday, but I will ask him when he 
> is back. I also did later added to it later.
>
> Since this driver is a complete rewrite I'm not sure if a Co-developed 
> by for Christoffer and me is appropriate, but we would ofc be happy 
> about it. Maybe for finding out the EC register meanings that you 
> probably at least partially copied over from tuxedo-drivers?
>
I did, but i mostly relied on the reverse-engineered OEM application for that.

> Or do you see another label more fitting?
>
I could also include your names inside the individual driver source code in a special thank-you section.

Thanks,
Armin Wolf

> Best regards,
>
> Werner
>
>>
>> Armin Wolf (3):
>>    platform/x86: Add Uniwill WMI driver
>>    platform/x86: Add Uniwill laptop driver
>>    Documentation: laptops: Add documentation for uniwill laptops
>>
>>   .../ABI/testing/sysfs-driver-uniwill-laptop   |   53 +
>>   Documentation/admin-guide/laptops/index.rst   |    1 +
>>   .../admin-guide/laptops/uniwill-laptop.rst    |   68 +
>>   Documentation/wmi/devices/uniwill-laptop.rst  |  109 ++
>>   Documentation/wmi/devices/uniwill-wmi.rst     |   52 +
>>   MAINTAINERS                                   |   17 +
>>   drivers/platform/x86/Kconfig                  |    2 +
>>   drivers/platform/x86/Makefile                 |    3 +
>>   drivers/platform/x86/uniwill/Kconfig          |   49 +
>>   drivers/platform/x86/uniwill/Makefile         |    8 +
>>   drivers/platform/x86/uniwill/uniwill-laptop.c | 1477 +++++++++++++++++
>>   drivers/platform/x86/uniwill/uniwill-wmi.c    |  178 ++
>>   drivers/platform/x86/uniwill/uniwill-wmi.h    |  122 ++
>>   13 files changed, 2139 insertions(+)
>>   create mode 100644 
>> Documentation/ABI/testing/sysfs-driver-uniwill-laptop
>>   create mode 100644 
>> Documentation/admin-guide/laptops/uniwill-laptop.rst
>>   create mode 100644 Documentation/wmi/devices/uniwill-laptop.rst
>>   create mode 100644 Documentation/wmi/devices/uniwill-wmi.rst
>>   create mode 100644 drivers/platform/x86/uniwill/Kconfig
>>   create mode 100644 drivers/platform/x86/uniwill/Makefile
>>   create mode 100644 drivers/platform/x86/uniwill/uniwill-laptop.c
>>   create mode 100644 drivers/platform/x86/uniwill/uniwill-wmi.c
>>   create mode 100644 drivers/platform/x86/uniwill/uniwill-wmi.h
>>