From 4d903a713eb1db05a8465c74e6c6cd71fefc5d4e Mon Sep 17 00:00:00 2001
From: RichardWGNR <171420035+RichardWGNR@users.noreply.github.com>
Date: Fri, 11 Apr 2025 04:27:03 +0500
Subject: [PATCH 1/2] Capability to modify CAN frame data without copying.
 #4075

---
 embassy-stm32/src/can/frame.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/embassy-stm32/src/can/frame.rs b/embassy-stm32/src/can/frame.rs
index d2d1f7aa6..f1bc81ec3 100644
--- a/embassy-stm32/src/can/frame.rs
+++ b/embassy-stm32/src/can/frame.rs
@@ -128,6 +128,11 @@ impl ClassicData {
     pub fn raw(&self) -> &[u8] {
         &self.bytes
     }
+    
+    /// Raw mutable read access to data.
+    pub fn raw_mut(&mut self) -> &mut [u8] {
+        &mut self.bytes
+    }
 
     /// Checks if the length can be encoded in FDCAN DLC field.
     pub const fn is_valid_len(len: usize) -> bool {
@@ -208,6 +213,11 @@ impl Frame {
     pub fn data(&self) -> &[u8] {
         &self.data.raw()
     }
+    
+    /// Get mutable reference to data
+    pub fn data_mut(&mut self) -> &mut [u8] {
+        self.data.raw_mut()
+    }
 
     /// Get priority of frame
     pub fn priority(&self) -> u32 {
@@ -313,6 +323,11 @@ impl FdData {
     pub fn raw(&self) -> &[u8] {
         &self.bytes
     }
+    
+    /// Raw mutable read access to data.
+    pub fn raw_mut(&mut self) -> &mut [u8] {
+        &mut self.bytes
+    }
 
     /// Checks if the length can be encoded in FDCAN DLC field.
     pub const fn is_valid_len(len: usize) -> bool {
@@ -392,6 +407,11 @@ impl FdFrame {
     pub fn data(&self) -> &[u8] {
         &self.data.raw()
     }
+    
+    /// Get mutable reference to data
+    pub fn data_mut(&mut self) -> &mut [u8] {
+        self.data.raw_mut()
+    }
 }
 
 impl embedded_can::Frame for FdFrame {

From aae3f7fb70600851240501c9eced2cbc248ca700 Mon Sep 17 00:00:00 2001
From: RichardWGNR <171420035+RichardWGNR@users.noreply.github.com>
Date: Fri, 11 Apr 2025 04:31:32 +0500
Subject: [PATCH 2/2] Fix rustfmt #4075

---
 embassy-stm32/src/can/frame.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/embassy-stm32/src/can/frame.rs b/embassy-stm32/src/can/frame.rs
index f1bc81ec3..f621b8bd5 100644
--- a/embassy-stm32/src/can/frame.rs
+++ b/embassy-stm32/src/can/frame.rs
@@ -128,7 +128,7 @@ impl ClassicData {
     pub fn raw(&self) -> &[u8] {
         &self.bytes
     }
-    
+
     /// Raw mutable read access to data.
     pub fn raw_mut(&mut self) -> &mut [u8] {
         &mut self.bytes
@@ -213,7 +213,7 @@ impl Frame {
     pub fn data(&self) -> &[u8] {
         &self.data.raw()
     }
-    
+
     /// Get mutable reference to data
     pub fn data_mut(&mut self) -> &mut [u8] {
         self.data.raw_mut()
@@ -323,7 +323,7 @@ impl FdData {
     pub fn raw(&self) -> &[u8] {
         &self.bytes
     }
-    
+
     /// Raw mutable read access to data.
     pub fn raw_mut(&mut self) -> &mut [u8] {
         &mut self.bytes
@@ -407,7 +407,7 @@ impl FdFrame {
     pub fn data(&self) -> &[u8] {
         &self.data.raw()
     }
-    
+
     /// Get mutable reference to data
     pub fn data_mut(&mut self) -> &mut [u8] {
         self.data.raw_mut()