#[repr(transparent)]struct BuffSize(u32);
Expand description
The second 32-bit word of an IDMAC descriptor, containing data buffer size.
Tuple Fields§
§0: u32
Implementations§
source§impl BuffSize
impl BuffSize
sourceconst SIZE: Pack32<u32, Self> = _
const SIZE: Pack32<u32, Self> = _
The data buffer byte size, which must be a multiple of 4 bytes. If this field is 0, the DMA ignores this buffer and proceeds to the next descriptor.
sourceconst _RESERVED_0: Pack32<u32, Self> = _
const _RESERVED_0: Pack32<u32, Self> = _
Bits 31:13 are reserved.
const FIELDS: &'static [(&'static str, Pack32<u32, Self>)] = _
sourceconst fn from_bits(bits: u32) -> Self
const fn from_bits(bits: u32) -> Self
Constructs a new instance of Self
from the provided raw bits.
sourcefn with<T>(self, field: Pack32<T, Self>, value: T) -> Self
fn with<T>(self, field: Pack32<T, Self>, value: T) -> Self
Packs the bit representation of value
into self
at the bit
range designated by field
, returning a new bitfield.
sourcefn set<T>(&mut self, field: Pack32<T, Self>, value: T) -> &mut Self
fn set<T>(&mut self, field: Pack32<T, Self>, value: T) -> &mut Self
Packs the bit representation of value
into self
at the range
designated by field
, mutating self
in place.
sourcefn get<T>(self, field: Pack32<T, Self>) -> T
fn get<T>(self, field: Pack32<T, Self>) -> T
Unpacks the bit range represented by field
from self
, and
converts it into a T
-typed value.
§Panics
This method panics if self
does not contain a valid bit
pattern for a T
-typed value, as determined by T
’s
FromBits::try_from_bits
implementation.
sourcefn try_get<T>(self, field: Pack32<T, Self>) -> Result<T, T::Error>
fn try_get<T>(self, field: Pack32<T, Self>) -> Result<T, T::Error>
Unpacks the bit range represented by field
from self
and attempts to convert it into a T
-typed value.
§Returns
Ok(T)
if aT
-typed value could be constructed from the bits insrc
Err(T::Error)
ifsrc
does not contain a valid bit pattern for aT
-typed value, as determined byT
’s [FromBits::try_from_bits
implementation.
sourcefn assert_valid()
fn assert_valid()
Asserts that all the packing specs for this type are valid.
This is intended to be used in unit tests.
sourcefn display_ascii(&self) -> impl Display
fn display_ascii(&self) -> impl Display
Returns a value that formats this bitfield in a multi-line format, using only ASCII characters.
This is equivalent to formatting this bitfield using a {}
display specifier, but will never use Unicode box-drawing
characters, even when an upstream formatter uses the {:#}
fmt::Display
specifier. This is intended for use on platforms
where Unicode box drawing characters are never available.
sourcefn display_unicode(&self) -> impl Display
fn display_unicode(&self) -> impl Display
Returns a value that formats this bitfield in a multi-line format, always using Unicode box-drawing characters.
This is equivalent to formatting this bitfield using a {:#}
format specifier, but will always use Unicode box-drawing
characters, even when an upstream formatter uses the {}
fmt::Display
specifier.
fn fmt_ascii(&self, f: &mut Formatter<'_>) -> Result
fn fmt_unicode(&self, f: &mut Formatter<'_>) -> Result
Trait Implementations§
impl Copy for BuffSize
Auto Trait Implementations§
impl Freeze for BuffSize
impl RefUnwindSafe for BuffSize
impl Send for BuffSize
impl Sync for BuffSize
impl Unpin for BuffSize
impl UnwindSafe for BuffSize
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CheckedAs for T
impl<T> CheckedAs for T
source§fn checked_as<Dst>(self) -> Option<Dst>where
T: CheckedCast<Dst>,
fn checked_as<Dst>(self) -> Option<Dst>where
T: CheckedCast<Dst>,
source§impl<Src, Dst> CheckedCastFrom<Src> for Dstwhere
Src: CheckedCast<Dst>,
impl<Src, Dst> CheckedCastFrom<Src> for Dstwhere
Src: CheckedCast<Dst>,
source§fn checked_cast_from(src: Src) -> Option<Dst>
fn checked_cast_from(src: Src) -> Option<Dst>
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)source§impl<T> CloneToUninit for Twhere
T: Copy,
impl<T> CloneToUninit for Twhere
T: Copy,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)