Struct Setter

pub struct Setter<Opcode, Input> { /* private fields */ }

Implements the pattern for ioctls where a pointer argument is given to the ioctl.

The opcode must be read-only.

Implementations

impl<Opcode: CompileTimeOpcode, Input> Setter<Opcode, Input>

pub unsafe fn new(input: Input) -> Self

Create a new pointer setter-style ioctl object.

Safety

• Opcode must provide a valid opcode.
• For this opcode, Input must be the type that the kernel expects to get.

Trait Implementations

impl<Opcode: CompileTimeOpcode, Input: Debug> Debug for Setter<Opcode, Input>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<Opcode: CompileTimeOpcode, Input> Ioctl for Setter<Opcode, Input>

const IS_MUTATING: bool = false

Does the ioctl mutate any data in the userspace?

const OPCODE: Opcode = Opcode::OPCODE

The opcode used by this ioctl command.

type Output = ()

The type of the output data.

fn as_ptr(&mut self) -> *mut c_void

Get a pointer to the data to be passed to the ioctl command.

unsafe fn output_from_ptr( _: IoctlOutput, _: *mut c_void, ) -> Result<Self::Output>

Cast the output data to the correct type.