pub unsafe trait ExternalInterruptNumber: InterruptNumber { }Expand description
Marker trait for enums of target-specific external interrupt numbers.
External interrupts are interrupts caused by external sources (e.g., GPIO, UART, SPI).
External interrupts are not retrieved from the mcause CSR.
Instead, RISC-V processors have a single core interrupt for all external interrupts.
An additional peripheral (e.g., PLIC) is used to multiplex the external interrupts.
§Safety
Each enum variant must represent a valid external interrupt number.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.