Enum DataDirection 

#[repr(i32)]
pub enum DataDirection {
    None = -1,
    ToDevice = -2,
    FromDevice = -3,
    ToFromDevice = -4,
    Unknown = -5,
}

Variants

None = -1

e.g. a SCSI Test Unit Ready command

ToDevice = -2

e.g. a SCSI WRITE command

FromDevice = -3

e.g. a SCSI READ command

ToFromDevice = -4

treated like FromDevice with the additional property than during indirect IO the user buffer is copied into the kernel buffers before the transfer

Unknown = -5

Trait Implementations

impl Clone for DataDirection

fn clone(&self) -> DataDirection

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl From<DataDirection> for c_int

fn from(value: DataDirection) -> Self

Converts to this type from the input type.

impl Copy for DataDirection