Struct VesaDisplayDeviceBlock 

pub struct VesaDisplayDeviceBlock {

    pub interface_type: u8,
    pub num_links: u8,
    pub interface_version: u8,
    pub interface_release: u8,
    pub content_protection: u8,
    pub min_clock_mhz: u8,
    pub max_clock_mhz: u16,
    pub native_width: Option<u16>,
    pub native_height: Option<u16>,
    pub aspect_ratio_raw: u8,
    pub default_orientation: u8,
    pub rotation_capability: u8,
    pub zero_pixel_location: u8,
    pub scan_direction: u8,
    pub subpixel_layout: u8,
    pub h_pitch_hundredths_mm: u8,
    pub v_pitch_hundredths_mm: u8,
    pub dithering: u8,
    pub direct_drive: bool,
    pub overdrive_not_recommended: bool,
    pub deinterlacing: bool,
    pub audio_on_video_interface: bool,
    pub separate_audio_inputs: bool,
    pub audio_input_override: bool,
    pub audio_delay_ms: Option<i16>,
    pub frame_rate_conversion: u8,
    pub frame_rate_range: u8,
    pub native_frame_rate: u8,
    pub interface_color_depth: u8,
    pub display_color_depth: u8,
    pub additional_chromaticities: [u8; 8],
    pub response_time_ms: u8,
    pub response_time_white_to_black: bool,
    pub h_overscan_pct: u8,
    pub v_overscan_pct: u8,
}

Decoded VESA Display Device Data Block (extended tag 0x02).

A fixed 30-byte payload describing the physical and electrical characteristics of the display, per the VESA Display Device Data Block (DDDB) Standard, Version 1.

Fields

interface_type: u8

Interface type code (bits 7:4). 0=Analog, 1=LVDS, 3=DVI-D, 6=HDMI-A, 9=DP, etc.

num_links: u8

Number of lanes/channels (bits 3:0). For analog interfaces this is a subtype code.

interface_version: u8

Interface standard version (bits 7:4 of byte 0x03).

interface_release: u8

Interface standard release (bits 3:0 of byte 0x03).

content_protection: u8

Content protection code (byte 0x04). 0=none, 1=HDCP, 2=DTCP, 3=DPCP.

min_clock_mhz: u8

Minimum supported clock frequency per link in MHz (6-bit, range 0–63).

max_clock_mhz: u16

Maximum supported clock frequency per link in MHz (10-bit, range 0–1023).

native_width: Option<u16>

Native horizontal pixel count, or None if the display has no fixed format.

native_height: Option<u16>

Native vertical pixel count, or None if the display has no fixed format.

aspect_ratio_raw: u8

Aspect ratio raw byte. Physical AR = (raw / 100.0) + 1.0 (long-axis / short-axis).

default_orientation: u8

Default orientation: 0=landscape, 1=portrait, 2=not_fixed, 3=undefined.

rotation_capability: u8

Rotation capability: 0=none, 1=90°CW, 2=90°CCW, 3=both.

zero_pixel_location: u8

Zero pixel (scan origin) location: 0=upper-left, 1=upper-right, 2=lower-left, 3=lower-right.

scan_direction: u8

Scan direction: 0=undefined, 1=long-axis-fast, 2=short-axis-fast, 3=reserved.

subpixel_layout: u8

Subpixel layout code (byte 0x0D). 0=undefined, 1=RGB-V, 2=RGB-H, etc.

h_pitch_hundredths_mm: u8

Horizontal pixel pitch in 0.01 mm increments (range 0.00–2.55 mm).

v_pitch_hundredths_mm: u8

Vertical pixel pitch in 0.01 mm increments (range 0.00–2.55 mm).

dithering: u8

Dithering type: 0=none, 1=spatial, 2=temporal, 3=spatial+temporal.

direct_drive: bool

Display is direct-drive — no internal scaling/de-interlacing/FRC.

overdrive_not_recommended: bool

Video source should not apply overdrive for this display.

deinterlacing: bool

Display can de-interlace interlaced input to progressive scan.

audio_on_video_interface: bool

Audio is supported on the video interface.

separate_audio_inputs: bool

Separate audio inputs are provided independently of the video interface.

audio_input_override: bool

Audio received on the video interface automatically overrides other audio inputs.

audio_delay_ms: Option<i16>

Signed audio delay in milliseconds (positive = audio after video, negative = before). None means no delay information is provided (raw delay byte was 0x00).

frame_rate_conversion: u8

Frame-rate conversion capability: 0=none, 1=single-buffer, 2=double-buffer, 3=interpolation.

frame_rate_range: u8

Maximum excursion (±FPS) from the nominal frame rate (6 bits, 0–63).

native_frame_rate: u8

Native or nominal display frame rate in frames/second.

interface_color_depth: u8

Color bit depth per primary on the video interface (1–16).

display_color_depth: u8

Color bit depth per primary at the display panel without temporal dithering (1–16).

additional_chromaticities: [u8; 8]

Raw bytes 0x16–0x1D: chromaticity data for up to three additional primaries.

response_time_ms: u8

Response time in milliseconds (0 = < 1 ms, 127 = > 126 ms).

response_time_white_to_black: bool

true if the response time is white-to-black; false if black-to-white.

h_overscan_pct: u8

Percentage of active image outside the visible screen area, horizontally (0–15%).

v_overscan_pct: u8

Percentage of active image outside the visible screen area, vertically (0–15%).

Trait Implementations

impl Clone for VesaDisplayDeviceBlock

fn clone(&self) -> VesaDisplayDeviceBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VesaDisplayDeviceBlock

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

Formats the value using the given formatter.

impl PartialEq for VesaDisplayDeviceBlock

fn eq(&self, other: &VesaDisplayDeviceBlock) -> 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 Eq for VesaDisplayDeviceBlock

impl StructuralPartialEq for VesaDisplayDeviceBlock