Struct PciCommonHeader

pub struct PciCommonHeader {
    pub device_id: u16,
    pub vendor_id: u16,
    pub status: u16,
    pub command: u16,
    pub class_code: u8,
    pub subclass_code: u8,
    pub prog_iface_code: u8,
    pub revision_id: u8,
    pub bist: u8,
    pub header_type: u8,
    pub latency_timer: u8,
    pub cache_line_size: u8,
}

The header that is common for all PCI devices.

All fields are the raw values of every non-reserved register part in the configuration space.

The format of the header in PCI configuration space is the following.

+----------+---------+-------------+--------------+----------------+----------------+
| Register | Offset  | Bits 31-24  | Bits 23-16   | Bits 15-8      | Bits 7-0       |
+----------+---------+-------------+--------------+----------------+----------------+
|    0x0   |   0x0   | Device ID                  | Vendor ID                       |
|    0x1   |   0x4   | Status                     | Command                         |
|    0x2   |   0x8   | Class code  | Subclass     | Prog IF        | Revision ID    |
|    0x3   |   0xC   | BIST        | Header type  | Latency Timer  | Cache Line Size|
+----------+---------+-------------+--------------+----------------+----------------+

Fields

device_id: u16

vendor_id: u16

status: u16

command: u16

class_code: u8

subclass_code: u8

prog_iface_code: u8

revision_id: u8

bist: u8

header_type: u8

latency_timer: u8

cache_line_size: u8

Implementations

impl PciCommonHeader

pub const MAX_HEADER_LEN: usize = 72usize

The maximum legth of the data of PCI headers parsed by this crate.

pub const COMMON_HEADER_LEN: usize = 16usize

The length of the common header in PCI configuration space.

pub fn with_bytes(bytes: &[u8]) -> Result<Self, PciInfoError>

Reads the common header from a slice containing the bytes of the PCI configuration space for this device.

Trait Implementations

impl Clone for PciCommonHeader

fn clone(&self) -> PciCommonHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PciCommonHeader

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

Formats the value using the given formatter.