Struct LineRequest

#[repr(C)]
pub struct LineRequest {
    pub offsets: Offsets,
    pub consumer: Name,
    pub config: LineConfig,
    pub num_lines: u32,
    pub event_buffer_size: u32,
    /* private fields */
}

Information about a request for GPIO lines.

Fields

offsets: Offsets

An array of requested lines, identified by offset on the associated GPIO chip.

consumer: Name

The requested consumer label for the selected GPIO lines such as “my-bitbanged-relay”.

config: LineConfig

The requested configuration for the lines.

num_lines: u32

The number of lines requested in this request. i.e. the number of valid elements in offsets.

Set to 1 to request a single line.

event_buffer_size: u32

A suggested minimum number of line events that the kernel should buffer.

This is only relevant if edge detection is enabled in the configuration.

Note that this is only a suggested value and the kernel may allocate a larger buffer or cap the size of the buffer. If this field is zero then the buffer size defaults to a minimum of num_lines*16.

Trait Implementations

impl Clone for LineRequest

fn clone(&self) -> LineRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LineRequest

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

Formats the value using the given formatter.

impl Default for LineRequest

fn default() -> LineRequest

Returns the “default value” for a type.