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

[John Hubbard]

On 1/21/26 8:15 AM, Miguel Ojeda wrote:
> On Wed, Jan 21, 2026 at 3:58 PM Gary Guo <gary@xxxxxxxxxxx> wrote:
> > Another top-level question I have is whether we should define multiple registers
> > (perhaps all) in one macro invocation. That's the strategy of `tock-registers`
> > crate which is widely used in embedded Rust.
>
> Yeah, I suggested a multi-register one for something similar in 2021
> and even tackling extra automatic codegen there, like e.g. adjusting
> the value as needed to get to the proper unit from a sensor.
>
> Not sure how useful the multi-register part in practice it would be,
> but it would allow to relate several registers together if needed (is
> that even common nowadays?). Or perhaps things like the

For the NVIDIA GPU drivers, maybe not. Just a data point.


thanks,
--
John Hubbard