Cargo Features

[dependencies]
ctaphid = { version = "0.3.1", default-features = false, features = ["hidapi"] }
default = hidapi

The hidapi feature is set by default whenever ctaphid 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.

hidapi default

Enables hidapi ^1.2.6