Consider replaicng `void::Void` with the stable `core::convert::Infallible`

[Conaclos]

core::convert::Infallible is stable since Rust 1.34

To reduce dependencies and supply chain attack, I suggest replacing void::Void with the stable core::convert::Infallible.
This is a breaking change. However, it is a limited breaking change because void::Void is used by a single function in the rp235x-hal crate and the rp2040-hal crate.

[jannic]

A breaking change is fine, our main branch already contains some breaking changes.

[jannic]

Unfortunately, this is part of a trait implementation. We would need to remove support for embedded-hal 0.2 first.
(Or maybe make it optional? What fraction of the ecosystem didn't upgrade to e-h 1.0 yet?)

[thejpster]

https://docs.rs/embedded-hal-compat/ exists, so we can probably just impl eh-1.0 and people can use the compat library if they need a type that impls eh-0.2

[Conaclos]

You are right, most of the ecosystem have certainly migrated to embedded-hal@1.x. However, some crates like cortex-m have not been released since the release of embedded-hal@1.x. And this seems to be blocked. It is not a real issue because several versions of embedded-hal can cohabit in a same project.

If we want to support embedded-hal@0.2.x, then we could add exclusive features embedded-hal-02 and embedded-hal-1. This adds a lot of complexity. I am not sure if it is worth the burden.

EDIT: thejpster's suggestion seems to be better :)