Crate cr1140_hal 

Hardware abstraction layer for the ifm CR1140/CR1141 (aarch64, Yocto Linux).

Wraps stock Linux ABIs the device exposes: fbdev (display), evdev (buttons), SocketCAN (CAN), and sysfs (LEDs/backlight/temperature).

Most fallible calls return HalResult, so callers can match on the HalError cause (missing device, unsupported format, out-of-range value) rather than string-matching an std::io::Error.

Re-exports

pub use error::HalError;

pub use error::HalResult;

Modules

can

CAN access via SocketCAN (Linux-only; the module is empty on other hosts).

display

Display output: pixel surface plus an fbdev backend.

error

Unified error type for the HAL. Wraps the OS errors the underlying ABIs return (std::io::Error) and adds HAL-specific failure causes so callers can distinguish “no such device” from “wrong pixel format” from a plain I/O error without string-matching.

input

Front-panel buttons via evdev.

prelude

Convenience re-exports. use cr1140_hal::prelude::*; pulls in the common types so apps don’t need a long list of module-qualified use statements.

sys

System: LEDs, backlight, temperature via sysfs.