Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Update Tokio to 1.x. #55.
Fix lsgpio example to output gpio line flags.
Add is_empty() function for Lines struct.
Add common trait implementations for public structures.
Breaking change of LineEventHandle::get_event() which now expects &mut self.
MSRV is now 1.46.0.
Updated nix to version 0.22.
Updated quicli to version 0.4.
Updated bitflags to version 1.3.

Removed pub “errors” module. Error now exposed at top level.
MSRV is now 1.39.0
Add support behind a feature flag for reading events from a line as a Stream via tokio. #35.

Refactored Errors:

Adds the ability to create a collection of lines from a single chip and read or write those lines simultaneously with a single stystem call.

A new Lines object (plural) was added. It is a collection of individual Line objects on a single Chip which can be read or written simultaneously with a single system call.
A Line now just contains the reference to the Chip and the offset number. No system call is incurred when one is created.
Information about an individual line is now represented by a separate LineInfo struct which can be obtained from the function Line::info(). This incurs a system call to retrieve the information.
Creating a Line can't fail unless the caller specifies an offset that is out of range of the chip.
The LineIterator can not fail since it checks the offset range. So now its item is just a Line, and not Result<Line>.
There was no longer a need for Line::refresh() so it was removed.
Since a Line object is trivial to create, it is now OK to have Lines be a simple collection of Line structs.

Initial release of the library with basic operations centered around operating on a single line at a time.