From cedafa26c880b4f1ffc86f8203b0bf10aabfbf81 Mon Sep 17 00:00:00 2001
From: Rutherther <rutherther@ditigal.xyz>
Date: Fri, 8 Nov 2024 15:59:09 +0100
Subject: [PATCH] fix: fifo has to be volatile

---
 src/usb_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/usb_device.c b/src/usb_device.c
index 6324677964457ffd310c61c7d72c6a18a80977ae..7a8be821c554ab93051fc0e394649372cb3dce81 100644
--- a/src/usb_device.c
+++ b/src/usb_device.c
@@ -326,7 +326,7 @@ void usb_handle_rxflvl_control_int(usb_device_t *device,
                                    packet_info_t *packet_info) {
   uint32_t dummy;
   uint8_t data[64];
-  uint32_t *fifo = device->fifos[0].data;
+  volatile uint32_t *fifo = device->fifos[0].data;
 
   if (packet_info->packet_status == PACKET_SETUP_TRANSACTION_COMPLETED) {
     // Nothing do to.