From 5e713467e11bfb9d3f4319a60bca7c193b0aec1d Mon Sep 17 00:00:00 2001
From: David O'Connor <the_alchemist@fastmail.com>
Date: Tue, 19 Dec 2023 09:08:47 -0500
Subject: [PATCH] More adjustments for unsafe-cell

---
 src/spi.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/spi.rs b/src/spi.rs
index 13d508a..b59ff26 100644
--- a/src/spi.rs
+++ b/src/spi.rs
@@ -651,6 +651,7 @@ where
     fn send(&mut self, word: u8) -> Result<(), SpiError> {
         // NOTE(write_volatile) see note above
         unsafe {
+            #[allow(invalid_reference_casting)]
             ptr::write_volatile(&self.regs.txdr as *const _ as *mut u8, word);
         }
         // write CSTART to start a transaction in
@@ -675,6 +676,7 @@ where
             return Err(SpiError::Crc);
         }
 
+        #[allow(invalid_reference_casting)]
         unsafe {
             ptr::write_volatile(&self.regs.txdr as *const _ as *mut _, word);
             Ok(ptr::read_volatile(&self.regs.rxdr as *const _ as *const u8))