Function enable_direct

pub fn enable_direct(
    interrupt: Interrupt,
    level: Priority,
    cpu_interrupt: CpuInterrupt,
) -> Result<(), Error>

Available on crate feature unstable only.

Enable an interrupt by directly binding it to a available CPU interrupt

Unless you are sure, you most likely want to use enable instead.

Trying using a reserved interrupt from RESERVED_INTERRUPTS will return an error.