From a86f59b32eb86a1ccb94bf1e627c1115c3b6b217 Mon Sep 17 00:00:00 2001
From: Tianhao Wang <shrik3@mailbox.org>
Date: Thu, 6 Jun 2024 00:02:53 +0200
Subject: io: add serial output through port 0x3f8 (qemu)

not yet wrapped with fmt macros because I want some thing stateless.
(i.e. I don't want to pass `&mut self` to write_str...).
---
 src/machine/device_io.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/machine/device_io.rs')

diff --git a/src/machine/device_io.rs b/src/machine/device_io.rs
index 2a0c907..9a530f1 100644
--- a/src/machine/device_io.rs
+++ b/src/machine/device_io.rs
@@ -4,7 +4,7 @@ pub use crate::arch::x86_64::io_port::*;
 // either use the io functions directly, or via a IOPort instance.
 pub struct IOPort(u16);
 impl IOPort {
-	pub fn new(port: u16) -> Self {
+	pub const fn new(port: u16) -> Self {
 		Self(port)
 	}
 	pub fn inw(&self) -> u16 {
-- 
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