Struct gpiod::Chip

pub struct Chip { /* private fields */ }

A Linux chardev GPIO chip interface

It can be used to get information about the chip and lines and to request GPIO lines that can be used as inputs or outputs.

Implementations

impl Chip

pub fn new(device: impl AsDevicePath) -> Result<Chip>

Create a new GPIO chip interface using path

pub fn list_devices() -> Result<Vec<PathBuf>>

List all found chips

pub fn line_info(&self, line: LineId) -> Result<LineInfo>

Request the info of a specific GPIO line.

pub fn request_lines<Direction: DirectionType>( &self, options: Options<Direction, impl AsRef<[LineId]>, impl AsRef<str>> ) -> Result<Lines<Direction>>

Request the GPIO chip to configure the lines passed as argument as inputs or outputs

Calling this operation is a precondition to being able to set the state of the GPIO lines. All the lines passed in one request must share the configured options such as active state, edge detect, GPIO bias, output drive and consumer string.

Methods from Deref<Target = ChipInfo>

pub fn name(&self) -> &str

Get chip name

pub fn label(&self) -> &str

Get chip label

pub fn num_lines(&self) -> u32

Get number of GPIO lines

Trait Implementations

impl Deref for Chip

type Target = ChipInfo

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Display for Chip

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

Formats the value using the given formatter.