Re: [PATCH v2 4/5] rust: io: add `register!` macro

[Gary Guo]

On Wed Jan 21, 2026 at 7:23 AM GMT, Alexandre Courbot wrote:
> Add a macro for defining hardware register types with I/O accessors.
> 
> Each register field is represented as a `Bounded` of the appropriate bit
> width, ensuring field values are never silently truncated.
> 
> Fields can optionally be converted to/from custom types, either fallibly
> or infallibly.
> 
> The address of registers can be direct, relative, or indexed, supporting
> most of the patterns in which registers are arranged.
> 
> Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxx>

It looks like this is still based on the current Io impl. I think with Zhi's new
Io trait this will look quite different.

Best,
Gary

> ---
>  rust/kernel/io.rs          |    1 +
>  rust/kernel/io/register.rs | 1198 ++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 1199 insertions(+)