Trait ReadBuffer

Source

pub unsafe trait ReadBuffer {
    // Required method
    unsafe fn read_buffer(&self) -> (*const u8, usize);
}

Expand description

Trait for buffers that can be given to DMA for reading.

§Safety

Once the read_buffer method has been called, it is unsafe to call any &mut self methods on this object as long as the returned value is in use (by DMA).

Required Methods§

Source

unsafe fn read_buffer(&self) -> (*const u8, usize)

Provide a buffer usable for DMA reads.

The return value is:

pointer to the start of the buffer
buffer size in bytes

§Safety

Once this method has been called, it is unsafe to call any &mut self methods on this object as long as the returned value is in use (by DMA).

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".