Crate features / embedded-io
Feature flags · embedded-io 0.7.1 · from crates.io 2026-10-24
embedded-io features: what each one does, and the line to copy
Short answerembedded-io 0.7.1 has 3 features. Nothing is on by default: turn on what you use. It needs Rust 1.81 or newer.
Pick features
Every feature
| Feature | In default | Turns on |
|---|---|---|
alloc | nothing else (a switch the code checks) | |
defmt | dep:defmt | |
std | alloc |
dep:x turns on the optional dependency x; x/y turns on feature y of dependency x (with ?, only if x is already on).
MSRV history
The minimum Rust version embedded-io declares (rust-version), and the release that changed it:
- 0.7.1 (2025-10-01): Rust 1.81
Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p embedded-io --precise <version>, or use resolver 3, which picks compatible versions for you.
More on embedded-io
Real downloads, dependents and alternatives: embedded-io crate data (733.2K real downloads a day, 337 dependents).
docs.rs feature list · crates.io · license MIT OR Apache-2.0 · edition 2021
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