Struct mbrman::CHS

pub struct CHS {
    pub cylinder: u16,
    pub head: u8,
    pub sector: u8,
}

A CHS address (cylinder/head/sector)

Fields

cylinder: u16

Cylinder

head: u8

Head

sector: u8

Sector

Implementations

impl CHS

pub fn new(cylinder: u16, head: u8, sector: u8) -> CHS

Creates a new CHS address based on input parameters.

Remark

The values entered in input are not checked.

pub fn empty() -> CHS

Creates an empty CHS addressing (0/0/0).

Remark

This is what you need on recent hardware because CHS is never used.

pub fn from_lba_exact( lba: u32, cylinders: u16, heads: u8, sectors: u8, ) -> Result<CHS>

Creates a CHS address calculated from the number of cylinders, heads and sectors per track of the hard disk.

Remarks

• You probably don’t need to do this at all! This is only useful if you intend to use partitions that use the CHS addressing. Check the column “Access” of this table on Wikipedia.
• On old systems, partitions must be aligned on cylinders.

pub fn from_lba_aligned( lba: u32, cylinders: u16, heads: u8, sectors: u8, ) -> Result<CHS>

Creates a CHS address, aligned to the nearest cylinder. The cylinder chosen will always be the exact cylinder (if the LBA is exactly at the beginning of a cylinder); or the next cylinder. But it will never choose the previous cylinder.

pub fn to_lba(self, heads: u8, sectors: u8) -> u32

Convert a CHS address to LBA

pub fn is_empty(self) -> bool

Check if the CHS address is empty

Remark

This function does not check if the CHS address is withing range of possible values for a provided hard disk.

pub fn is_valid(self, cylinders: u16, heads: u8, sectors: u8) -> bool

Check if the CHS address is valid and within range of the possible values for the hard disk geometry provided in argument.

Trait Implementations

impl Clone for CHS

fn clone(&self) -> CHS

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CHS

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CHS

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for CHS

fn eq(&self, other: &CHS) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for CHS

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for CHS

impl Eq for CHS

impl StructuralPartialEq for CHS