Embedded Working Group Meeting 2024-01-09

Attendance

Write your GH username or Matrix handle here!

Announcements
- Welcome @sirhcel to the WG and linux team!
- Miscompilation in current stable with opt-level=z on cortex-m https://github.com/rust-embedded/cortex-m/discussions/503
- https://github.com/rust-lang/rust/pull/118645 should hopefully bring more f32 functions to embedded platforms
- Rust 1.75 released, with async-fn-in-trait!
- Embassy (https://embassy.dev) now works on stable Rust
Embedded HAL
- GPIO &mut https://github.com/rust-embedded/embedded-hal/pull/547
  - Extensive further discussion on this point
  - HAL team to conclude with a vote

Not discussed this week:

cortex-m fence inline asm maybe shouldn't have nomem? https://github.com/rust-embedded/cortex-m/issues/502
- yes, they shouldn't. we'll want to backport the fix to 0.7 too
cortex-m VectActive in 0.7.7 https://github.com/rust-embedded/cortex-m/issues/499
- the -16 fix could be backported to 0.7.8
cortex-m-rt extra section example soundness https://github.com/rust-embedded/cortex-m/issues/498
cargo-binutils release?
- Yes, when CI failures are resolved
C-m-pac-interface: rename, test
mutex-trait: awaiting deprecation rfc
book: tooling page updates
bors: ops docs
rustc targets: awaiting feedback

Announcements
- embedded-hal v1.0.0-rc.3 released with InputPin requiring ``&mut self`
- Tracking issue still open for your end of year blog posts https://github.com/rust-embedded/wg/issues/720#
- @sirhcel opened a PR to join the linux team https://github.com/rust-embedded/wg/pull/724#event-11288139347
- Next meeting to be 9th Jan 2024
Embedded HAL
- 9 days to 1.0
- ToggleableOutputPin? https://github.com/rust-embedded/embedded-hal/issues/549
cortex-m fence inline asm maybe shouldn't have nomem? https://github.com/rust-embedded/cortex-m/issues/502
- yes, they shouldn't. we'll want to backport the fix to 0.7 too
cortex-m VectActive in 0.7.7 https://github.com/rust-embedded/cortex-m/issues/499
- the -16 fix could be backported to 0.7.8
cortex-m-rt extra section example soundness https://github.com/rust-embedded/cortex-m/issues/498
cargo-binutils release?
- Yes, when CI failures are resolved
C-m-pac-interface: rename, test
mutex-trait: awaiting deprecation rfc
book: tooling page updates
bors: ops docs
rustc targets: awaiting feedback