Trait kernel::file_operations::IoctlHandler[][src]

pub trait IoctlHandler: Sync {
    type Target;
    fn pure(
        _this: &Self::Target,
        _file: &File,
        _cmd: u32,
        _arg: usize
    ) -> Result<i32> { ... }
fn read(
        _this: &Self::Target,
        _file: &File,
        _cmd: u32,
        _writer: &mut UserSlicePtrWriter
    ) -> Result<i32> { ... }
fn write(
        _this: &Self::Target,
        _file: &File,
        _cmd: u32,
        _reader: &mut UserSlicePtrReader
    ) -> Result<i32> { ... }
fn read_write(
        _this: &Self::Target,
        _file: &File,
        _cmd: u32,
        _data: UserSlicePtr
    ) -> Result<i32> { ... } }
Expand description

Allows the handling of ioctls defined with the _IO, _IOR, _IOW, and _IOWR macros.

For each macro, there is a handler function that takes the appropriate types as arguments.

Associated Types

The type of the first argument to each associated function.

Provided methods

Handles ioctls defined with the _IO macro, that is, with no buffer as argument.

Handles ioctls defined with the _IOR macro, that is, with an output buffer provided as argument.

Handles ioctls defined with the _IOW macro, that is, with an input buffer provided as argument.

Handles ioctls defined with the _IOWR macro, that is, with a buffer for both input and output provided as argument.

Implementors