Merge #306

306: Add Debug to all spi mode types r=ryankurte a=Sh3Rm4n

I've noticed that these were missing, and I see no reason why to not implement `Debug`.

Co-authored-by: Fabian Viöl <[email protected]>

Author: bors[bot]

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Added
 - Added `IoPin` trait for pins that can change between being inputs or outputs
   dynamically.
+- Added `Debug` to all spi mode types.
 
 ### Changed
 - Swap PWM channel arguments to references

src/nb/spi.rs

@@ -31,7 +31,7 @@ pub trait FullDuplex<Word> {
 }
 
 /// Clock polarity
-#[derive(Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Polarity {
     /// Clock signal low when idle
     IdleLow,
@@ -40,7 +40,7 @@ pub enum Polarity {
 }
 
 /// Clock phase
-#[derive(Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Phase {
     /// Data in "captured" on the first clock transition
     CaptureOnFirstTransition,
@@ -49,7 +49,7 @@ pub enum Phase {
 }
 
 /// SPI mode
-#[derive(Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub struct Mode {
     /// Clock polarity
     pub polarity: Polarity,