Merge #309

309: add more traits to SPI error r=richardeoin a=andrewgazelka

- Adds `Copy, Clone, PartialEq, Eq`

Co-authored-by: Andrew Gazelka <andrew.gazelka@gmail.com>

Author: bors[bot]

src/rng.rs

@@ -130,6 +130,10 @@ macro_rules! rng_core {
                     let mut i = 0_usize;
                     while i < buffer.len() {
                         let random_word = self.value()?;
+
+                        // using to_ne_bytes does not work for u8 and would make the macro
+                        // implementation more complicated
+                        #[allow(clippy::transmute_num_to_bytes)]
                         let bytes: [$type; BATCH_SIZE] = unsafe { mem::transmute(random_word) };
                         let n = cmp::min(BATCH_SIZE, buffer.len() - i);
                         buffer[i..i + n].copy_from_slice(&bytes[..n]);

src/spi.rs

@@ -98,7 +98,7 @@ use crate::stm32::{SPI1, SPI2, SPI3, SPI4, SPI5, SPI6};
 use crate::time::Hertz;
 
 /// SPI error
-#[derive(Debug)]
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
 #[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[non_exhaustive]
 pub enum Error {