Writing Simple Rust Kernel Drivers

Rust kernel code uses use statements for selective imports instead of C’s #include directives.

module_phy_driver! macro in Rust bundles driver metadata, replacing C’s module_phy_driver() macro and phy_driver struct.

Rust defines compile-time constants with const and enforces explicit typing, unlike C’s #define.

Functions return Result and use the ? operator for error propagation instead of C’s sentinel return values.

Rust traits with the #[vtable] macro generate C-compatible structures of function pointers, replacing manual dispatch tables.

Rust references (& and &mut) provide compile-time guarantees against data races, unlike C pointers without such checks.