> For types that are layout-compatible with an I/O capable type, we would
> want the ability to use them directly for I/O operations. E.g.
>
> bitfield! {
> pub struct Foo(u32) {
> ...
> }
> }
>
> #[repr(C)]
> struct Bar {
> foo: Foo,
> }
>
> let mmio: Mmio<'_, Bar> = ...;
> io_read!(mmio, .foo)
>
> Currently this feature is available from `register!()` macro but not
> otherwise available with `io_read!`, `io_write!`. Support this by adding a
> `IoRepr` type to denote the underlying I/O type to use for a specific type.
>
> This makes the `IoLoc::IoType` and `Register::Storage` redundant; thus
> remove them; also convert register methods to use the `read_val` and
> `write_val` instead.
>
> Signed-off-by: Gary Guo <[email protected]>
Sashiko has reviewed this patch and found no issues. It looks great!
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https://sashiko.dev/#/patchset/[email protected]?part=2
