Struct LinuxSysfsReader 

pub struct LinuxSysfsReader { /* private fields */ }

Reads battery state from the Linux sysfs power-supply interface.

Scans /sys/class/power_supply/ (or an override root for tests) for the first entry whose type file contains Battery. Reads capacity, status, and optionally energy_now + power_now (or charge_now + current_now) to compute BatteryReading::time_to_empty.

Implementations

impl LinuxSysfsReader

pub fn new() -> Self

Create a reader backed by the real sysfs tree.

pub fn with_root(root: impl Into<PathBuf>) -> Self

Create a reader backed by a custom root directory.

Used in tests to point at a fake sysfs tree built with tempfile.

Trait Implementations

impl BatteryReader for LinuxSysfsReader

fn read(&self) -> Result<BatteryReading, BatteryError>

Read the current battery state.

impl Default for LinuxSysfsReader

fn default() -> Self

Returns the “default value” for a type.