Struct EcHeader 

pub struct EcHeader {
    pub erase_count: u64,
    pub vid_header_offset: u32,
    pub data_offset: u32,
    pub image_seq: u32,
}

Erase counter header at the start of every used erase block.

Fields

erase_count: u64

How often the block was erased.

vid_header_offset: u32

Offset of the super::VidHeader in the block.

data_offset: u32

Offset of the data in the block.

image_seq: u32

Number that all blocks of one UBI image share.

Implementations

impl EcHeader

pub const SIZE: usize = HEADER_SIZE

Size of the header in bytes.

pub fn parse(data: &[u8]) -> Result<Self, FormatError>

Parses the header at the start of data.

Errors

Returns an error if data is too short or a field has a value that the kernel rejects. It doesn’t check the offsets, because they depend on the block. super::ImageReader checks them.

pub fn to_bytes(&self) -> [u8; 64]

Returns the header as stored on flash, with version 1 and its CRC.

EcHeader::parse rejects an erase counter above 0x7FFFFFFF, so keep EcHeader::erase_count below that.

Trait Implementations

impl Clone for EcHeader

fn clone(&self) -> EcHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EcHeader

impl Debug for EcHeader

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

Formats the value using the given formatter.

impl Eq for EcHeader

impl PartialEq for EcHeader

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EcHeader