Merge #227

227: Derive common traits for write enums like for read enums r=ryankurte a=chrysn

The enums are just values so this should do no harm, and it helps
building interfaces around the peripherals that do validation or
otherwise pass those values around.

Closes: #135

Co-authored-by: chrysn <[email protected]>

Author: bors[bot]

src/generate/register.rs

@@ -685,6 +685,7 @@ pub fn fields(
                     let variants_doc = variants.iter().map(|v| util::escape_brackets(&v.doc).to_owned());
                     mod_items.push(quote! {
                         #[doc = #pc_w_doc]
+                        #[derive(Clone, Copy, Debug, PartialEq)]
                         pub enum #pc_w {
                             #(#[doc = #variants_doc]
                             #variants_pc),*