Struct SysfsActuator 

pub struct SysfsActuator { /* private fields */ }

Actuator that writes a value to a /sys filesystem file.

Common uses:

• Fan PWM control: /sys/class/hwmon/hwmon0/pwm1 (0–255)
• LED brightness: /sys/class/leds/led0/brightness (0–255)
• CPU governor: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

The scale field multiplies the command value before writing (e.g., 1.0 for direct, 255.0 if command is 0.0–1.0 and output is 0–255).

Implementations

impl SysfsActuator

pub fn new( id: impl Into<String>, kind: ActuatorKind, path: impl Into<String>, scale: f64, ) -> Self

Create a new sysfs actuator.

• path: absolute path to the sysfs file
• scale: multiplier to convert command value to raw output

pub fn fan_pwm(hwmon: usize, pwm: usize) -> Self

Create a fan PWM controller for hwmon device.

pub fn led(name: &str) -> Self

Create an LED brightness controller.

Trait Implementations

impl ActuatorDevice for SysfsActuator

fn id(&self) -> &str

Unique actuator identifier.

fn kind(&self) -> ActuatorKind

Actuator type.

fn command(&self, cmd: &ActuatorCommand) -> Result<(), String>

Send a command to the actuator. Returns Ok(()) on success.

fn is_available(&self) -> bool

Whether the actuator is currently available/connected.

fn e_stop(&self) -> Result<(), String>

Emergency stop — immediately disable the actuator.

impl Debug for SysfsActuator

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

Formats the value using the given formatter.