From 079cd940e727c1705e9f1b30706b9531d5aedda6 Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Sat, 24 May 2025 17:04:18 -0700
Subject: Framebuffer WIP

---
 src/mailbox.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/mailbox.c')

diff --git a/src/mailbox.c b/src/mailbox.c
index eaf0955..aacb747 100644
--- a/src/mailbox.c
+++ b/src/mailbox.c
@@ -21,7 +21,7 @@ static inline const void* msg_data(Message msg) {
   return (const void*)((uintptr_t)(msg >> 4));
 }
 
-static inline Message msg_make(uint8_t channel, const void* data) {
+static inline Message msg_make(uint8_t channel, volatile const void* data) {
   return ((uintptr_t)(data) << 4) | (channel & 0xf);
 }
 
@@ -64,7 +64,7 @@ const Mail* mbox_read(uint8_t channel) {
   return (const Mail*)(msg_data(msg));
 }
 
-void mbox_write(uint8_t channel, const void* mail) {
+void mbox_write(uint8_t channel, volatile const void* mail) {
   // Wait until the outbox is clear.
   while (outbox_full(pMailbox));
   // Send the mail.
-- 
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