sysfs-class 0.1.3

Rust library for viewing /sys/class in an object-oriented format
Documentation 
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use std::io;

/// Control whether a device uses, or does not use, runtime power management.
#[derive(Copy, Clone, Debug, PartialEq)]
pub enum RuntimePowerManagement {
    On,
    Off,
}

impl From<RuntimePowerManagement> for &'static str {
    fn from(pm: RuntimePowerManagement) -> &'static str {
        match pm {
            RuntimePowerManagement::On => "auto",
            RuntimePowerManagement::Off => "on",
        }
    }
}

pub trait RuntimePM {
    fn set_runtime_pm(&self, state: RuntimePowerManagement) -> io::Result<()>;
}