From 9967329e8de13dcc521492f0dcc291fda26a2922 Mon Sep 17 00:00:00 2001
From: whowechina <whowechina@gmail.com>
Date: Wed, 1 Apr 2026 17:08:23 +0800
Subject: [PATCH] Fix header inclusion

---
 firmware/src/cardio.c          | 1 +
 firmware/src/usb_descriptors.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/firmware/src/cardio.c b/firmware/src/cardio.c
index 75782d7..2b2d3cd 100644
--- a/firmware/src/cardio.c
+++ b/firmware/src/cardio.c
@@ -4,6 +4,7 @@
  */
 
 #include <stdlib.h>
+#include <stdio.h>
 #include <stdint.h>
 #include <stdbool.h>
 
diff --git a/firmware/src/usb_descriptors.c b/firmware/src/usb_descriptors.c
index 2019bf5..5f42958 100644
--- a/firmware/src/usb_descriptors.c
+++ b/firmware/src/usb_descriptors.c
@@ -23,6 +23,8 @@
  *
  */
 
+#include <stdio.h>
+
 #include "usb_descriptors.h"
 #include "pico/unique_id.h"
 #include "tusb.h"