Cargo Features

[dependencies]
arm-pl011-uart = { version = "0.3.1", default-features = false, features = ["embedded-hal-nb", "embedded-io"] }
default = embedded-hal-nb, embedded-io

These default features are set whenever arm-pl011-uart is added without default-features = false somewhere in the dependency tree.

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

embedded-hal-nb default
embedded-io default