Trait ostd::arch::x86::device::io_port::PortRead

pub trait PortRead {
    // Required method
    unsafe fn read_from_port(port: u16) -> Self;
}

A helper trait that implements the read port operation.

On x86, I/O ports operate on either u8 (via inb/outb), u16 (via inw/outw), or u32 (via inl/outl). Therefore this trait is implemented for exactly these types.

Required Methods

unsafe fn read_from_port(port: u16) -> Self

Reads a Self value from the given port.

Safety

This function is unsafe because the I/O port could have side effects that violate memory safety.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl PortRead for u8

unsafe fn read_from_port(port: u16) -> u8

impl PortRead for u16

unsafe fn read_from_port(port: u16) -> u16

impl PortRead for u32

unsafe fn read_from_port(port: u16) -> u32

Implementors