Struct dma_buf::DmaBuf

pub struct DmaBuf(pub(crate) OwnedFd);

A DMA-Buf buffer

Tuple Fields

0: OwnedFd

Implementations

impl DmaBuf

pub fn memory_map(self) -> Result<MappedDmaBuf, MapError>

Maps a DmaBuf for the CPU to access it

Panics

If the buffer size reported by the kernel (i64) cannot fit into an usize.

Errors

Will return an error if either the Buffer’s length can’t be retrieved, or if the mmap call fails.

Trait Implementations

impl AsFd for DmaBuf

fn as_fd(&self) -> BorrowedFd<'_>

Borrows the file descriptor.

impl AsRawFd for DmaBuf

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl Debug for DmaBuf

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

Formats the value using the given formatter.

impl From<OwnedFd> for DmaBuf

fn from(owned: OwnedFd) -> Self

Converts to this type from the input type.

impl FromRawFd for DmaBuf

unsafe fn from_raw_fd(fd: RawFd) -> Self

Constructs a new instance of Self from the given raw file descriptor.