linux-kernel - Re: [PATCH v5 1/3] rust: i2c: add basic I2C device and driver abstractions

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Message-Id: <5BD2518E-6D56-4BD7-8D69-CB437E02AB38@collabora.com>
Date: Thu, 11 Sep 2025 16:24:30 -0300
From: Daniel Almeida <daniel.almeida@...labora.com>
To: Igor Korotin <igor.korotin.linux@...il.com>
Cc: Miguel Ojeda <ojeda@...nel.org>,
 Alex Gaynor <alex.gaynor@...il.com>,
 Wolfram Sang <wsa+renesas@...g-engineering.com>,
 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>,
 Danilo Krummrich <dakr@...nel.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Viresh Kumar <viresh.kumar@...aro.org>,
 Asahi Lina <lina+kernel@...hilina.net>,
 Wedson Almeida Filho <wedsonaf@...il.com>,
 Alex Hung <alex.hung@....com>,
 Tamir Duberstein <tamird@...il.com>,
 Xiangfei Ding <dingxiangfei2009@...il.com>,
 linux-kernel@...r.kernel.org,
 rust-for-linux@...r.kernel.org,
 linux-i2c@...r.kernel.org
Subject: Re: [PATCH v5 1/3] rust: i2c: add basic I2C device and driver
 abstractions

Hi Igor,

> On 11 Sep 2025, at 12:49, Igor Korotin <igor.korotin.linux@...il.com> wrote:
> 
> Implement the core abstractions needed for I2C drivers, including:
> 
> * `i2c::Driver` — the trait drivers must implement, including `probe`
> 
> * `i2c::I2cClient` — a safe wrapper around `struct i2c_client`
> 
> * `i2c::Adapter` — implements `driver::RegistrationOps` to hook into the
>  generic `driver::Registration` machinery
> 
> * `i2c::DeviceId` — a `RawDeviceIdIndex` implementation for I2C device IDs
> 
> Signed-off-by: Igor Korotin <igor.korotin.linux@...il.com>

I’m a bit swamped for the next 2-3 days, but I will review this soon.

Feel free to ping me otherwise.

— Daniel