Struct ApmTag

#[repr(C, align(8))]
pub struct ApmTag { /* private fields */ }

The Advanced Power Management (APM) tag.

Implementations

impl ApmTag

pub fn new( version: u16, cseg: u16, offset: u32, cset_16: u16, dset: u16, flags: u16, cseg_len: u16, cseg_16_len: u16, dseg_len: u16, ) -> Self

Creates a new tag.

pub const fn version(&self) -> u16

The version number of the APM BIOS.

pub const fn cseg(&self) -> u16

Contains the 16-bit code segment (CS) address for the APM entry point.

pub const fn offset(&self) -> u32

Represents the offset address within the code segment (cseg) for the APM entry point.

pub const fn cset_16(&self) -> u16

Contains the 16-bit code segment (CS) address used for 16-bit protected mode APM functions.

pub const fn dseg(&self) -> u16

Holds the 16-bit data segment (DS) address used by the APM BIOS for data operations.

pub const fn flags(&self) -> u16

Indicates the status and characteristics of the APM connection, such as if APM is present and its capabilities.

pub const fn cseg_len(&self) -> u16

Indicates the length, in bytes, of the data segment (dseg) used by the APM BIOS

pub const fn cseg_16_len(&self) -> u16

Provides the length, in bytes, of the 16-bit code segment (cseg_16) used for APM functions.

pub const fn dseg_len(&self) -> u16

Indicates the length, in bytes, of the data segment (dseg) used by the APM BIOS.

Trait Implementations

impl Debug for ApmTag

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

Formats the value using the given formatter.

impl MaybeDynSized for ApmTag

const BASE_SIZE: usize = 32usize

The true base size of the struct without any implicit or additional padding. Note that size_of::<T>() isn’t sufficient, as for example the type could have three u32 fields, which would add an implicit u32 padding. However, this constant must always fulfill BASE_SIZE >= size_of::<Self::Header>().

type Header = TagHeader

The associated Header of this tag.

fn dst_len(_: &TagHeader)

Returns the amount of items in the dynamically sized portion of the DST. Note that this is not the amount of bytes. So if the dynamically sized portion is 16 bytes in size and each element is 4 bytes big, then this function must return 4.

fn header(&self) -> &Self::Header

Returns the corresponding Header.

fn payload(&self) -> &[u8]

Returns the payload, i.e., all memory that is not occupied by the Header of the type.

fn as_bytes(&self) -> BytesRef<'_, Self::Header>

Returns the whole allocated bytes for this structure encapsulated in BytesRef. This includes padding bytes. To only get the “true” tag data, read the tag size from Self::header and create a sub slice.

fn as_ptr(&self) -> *const Self::Header

Returns a pointer to this structure.

impl Tag for ApmTag

const ID: TagType = TagType::Apm

The ID of this tag. This should be unique across all implementors.

type IDType = TagType

The ID type that identifies the tag.