Add common trait implementations for publis structs

Author: eldruin

CHANGELOG.md

@@ -10,11 +10,12 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## v0.5.0
 
-- Fix lsgpio example to output gpio line flags
-- Add `is_empty()` function for `Lines` struct
+- Fix lsgpio example to output gpio line flags.
+- Add `is_empty()` function for `Lines` struct.
+- Add common trait implementations for public structures.
 - Update Tokio to 1.x. #[55]((https://github.com/rust-embedded/gpio-cdev/pull/55).
 - Breaking change of `LineEventHandle::get_event()` which now expects `&mut self`.
-- MSRV is now 1.46.0
+- MSRV is now 1.46.0.
 - Updated `nix` to version `0.22`.
 - Updated `quicli` to version `0.4`.
 - Updated `bitflags` to version `1.3`.

src/lib.rs

@@ -107,7 +107,7 @@ mod async_tokio;
 pub mod errors; // pub portion is deprecated
 mod ffi;
 
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy, PartialEq)]
 pub enum IoctlKind {
     ChipInfo,
     LineInfo,
@@ -168,6 +168,8 @@ pub struct Chip {
     inner: Arc<InnerChip>,
 }
 
+/// Iterator over chips
+#[derive(Debug)]
 pub struct ChipIterator {
     readdir: ReadDir,
 }
@@ -297,6 +299,7 @@ impl Chip {
 }
 
 /// Iterator over GPIO Lines for a given chip.
+#[derive(Debug)]
 pub struct LineIterator {
     chip: Arc<InnerChip>,
     idx: u32,
@@ -388,7 +391,7 @@ bitflags! {
 }
 
 /// In or Out
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Clone, Copy, PartialEq)]
 pub enum LineDirection {
     In,
     Out,
@@ -893,7 +896,7 @@ impl AsRawFd for MultiLineHandle {
 /// Maps to kernel [`GPIOEVENT_EVENT_*`] definitions.
 ///
 /// [`GPIOEVENT_EVENT_*`]: https://elixir.bootlin.com/linux/v4.9.127/source/include/uapi/linux/gpio.h#L136
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Clone, Copy, PartialEq)]
 pub enum EventType {
     RisingEdge,
     FallingEdge,