Trait x86_64::structures::port::PortRead
source · pub trait PortRead {
// Required method
unsafe fn read_from_port(port: u16) -> Self;
}
Expand description
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§
sourceunsafe fn read_from_port(port: u16) -> Self
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§
source§impl PortRead for u8
Available on crate feature instructions
only.
impl PortRead for u8
Available on crate feature
instructions
only.unsafe fn read_from_port(port: u16) -> u8
source§impl PortRead for u16
Available on crate feature instructions
only.
impl PortRead for u16
Available on crate feature
instructions
only.unsafe fn read_from_port(port: u16) -> u16
source§impl PortRead for u32
Available on crate feature instructions
only.
impl PortRead for u32
Available on crate feature
instructions
only.