linux-kernel - Re: [RFC PATCH 0/3] rust: WMI abstractions

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Message-ID: <c7384f13-e286-45a4-95c6-24d389217185@gmx.de>
Date: Thu, 25 Dec 2025 18:56:59 +0100
From: Armin Wolf <W_Armin@....de>
To: Gladyshev Ilya <foxido@...ido.dev>, Danilo Krummrich <dakr@...nel.org>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>,
 Miguel Ojeda <ojeda@...nel.org>, Boqun Feng <boqun.feng@...il.com>,
 Gary Guo <gary@...yguo.net>, Björn Roy Baron
 <bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>,
 Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>,
 Trevor Gross <tmgross@...ch.edu>, Tamir Duberstein <tamird@...il.com>,
 platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
 rust-for-linux@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [RFC PATCH 0/3] rust: WMI abstractions

Am 22.12.25 um 22:30 schrieb Gladyshev Ilya:

> On 12/22/25 14:52, Danilo Krummrich wrote:
>> On Sun Dec 21, 2025 at 7:22 PM CET, Gladyshev Ilya wrote:
>>> Overview
>>> ========
>>> This patchset was developed some time ago out of pure curiosity
>>> about the R4L project, but I believe it may still be useful, so
>>> I decided to resume and post this work.
>>> The goal of my curiosity is to develop a simple WMI driver in Rust
>>> for unsupported laptop (I have some laying around) or, as a last
>>> resort, submit a rewrite of redmi-wmi as a sample driver -- if that
>>> would be acceptable.
>>
>> It depends on the subsystem maintainer, please also see [1].
>>
>> [1] https://rust-for-linux.com/rust-reference-drivers
>
> Yes, I Cc'ed platform-drivers and WMI maintainer in a hope to gather 
> their opinions.
>
I am OK with you using the redmi-wmi driver as a reference driver. TBH i am very interested in having rust
abstractions for the WMI subsystem, however i currently have no clue about the rust programing language itself :(
I plan to complete a rust tutorial in the future, but till then i can give you only limited feedback.

>>> Why RFC?
>>> ========
>>> 1. No real users for now
>>
>> Above it does sound like you are working on a new WMI driver as well?
> Well, I am planning to, but I can't guarantee any success at this 
> point) So "no real users" is honest answer for now
>
> But in a case if a) WMI subsystem is OK with reference drivers, and b) 
> I fail to write a new driver, I will submit redmi-wmi-rs as a 
> reference driver (since I can test it on my hardware).

Fine with me.

Thanks,
Armin Wolf