Struct ev3dev_lang_rust::Attribute

pub struct Attribute { /* fields omitted */ }

A wrapper to a attribute file in the /sys/class/ directory.

Implementations

impl Attribute

pub fn new(
    class_name: &str,
    name: &str,
    attribute_name: &str
) -> Ev3Result<Attribute>

Create a new Attribute instance that wrappes the file /sys/class/{class_name}/{name}{attribute_name}.

pub fn get<T>(&self) -> Ev3Result<T> where
    T: FromStr,
    <T as FromStr>::Err: Error, 

Returns the current value of the wrapped file. The value is parsed to the type T. Returns a Ev3Result::InternalError if the current value is not parsable to type T.

pub fn set<T>(&self, value: T) -> Ev3Result<()> where
    T: ToString, 

Sets the value of the wrapped file. The value is parsed from the type T. Returns a Ev3Result::InternalError if the file is not writable.

pub fn set_str_slice(&self, value: &str) -> Ev3Result<()>

Sets the value of the wrapped file. This function skips the string parsing of the self.set<T>() function. Returns a Ev3Result::InternalError if the file is not writable.

pub fn get_vec(&self) -> Ev3Result<Vec<String>>

Returns a string vector representation of the wrapped file. The file value is splitet at whitespaces.

pub fn get_raw_fd(&self) -> RawFd

Returns a C pointer to the wrapped file.

Trait Implementations

impl Clone for Attribute

pub fn clone(&self) -> Attribute

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Attribute

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

Formats the value using the given formatter.