Crate df_ddc 

df_ddc

DDC/CI (VESA MCCS) monitor control backend.

This crate provides low-level I/O for VCP features: brightness, contrast, volume, input source, and power state across Windows and Linux.

Quick Start

use df_ddc::list_monitors;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    for dev in list_monitors() {
        let caps = dev.inner.get_capabilities()?;
        println!("{}: brightness={}/{}", dev.info, caps.brightness, caps.brightness_max);
    }
    Ok(())
}

Platform Support

OS	Enumeration	I/O
Windows	EnumDisplayMonitors + GetPhysicalMonitorsFromHMONITOR	HighLevelMonitorConfigurationAPI
Linux	scan of /dev/i2c-* with VCP 0x10 probe	raw I2C, DDC packets over i2c-dev

License

Licensed under either of MIT or Apache-2.0 at your option.

Modules

ddc_backends

Platform-specific DDC/CI backend implementations. Platform-specific DDC/CI backend implementations.

ddc_trait

DDC/CI trait definitions and device abstraction.

ddc_types

DDC/CI VCP (Virtual Control Panel) data types.

error

Error types for DDC/CI operations. Error types for DDC/CI monitor control operations.

Functions

list_monitors

Enumerates all connected monitors supporting DDC/CI across different platforms.