From 9badf36ce0b631a2ac6c1177434542311a8c7ed2 Mon Sep 17 00:00:00 2001
From: Aiken Harris <harraiken@noreply.codingworkshop.git>
Date: Tue, 5 Aug 2025 23:25:30 +0200
Subject: [PATCH] Add ring indicator field to CPPORT structure

---
 sdk/xtdk/hltypes.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sdk/xtdk/hltypes.h b/sdk/xtdk/hltypes.h
index 25cc2b4..7d5f513 100644
--- a/sdk/xtdk/hltypes.h
+++ b/sdk/xtdk/hltypes.h
@@ -357,12 +357,13 @@ typedef struct _ACPI_TIMER_INFO
     ULONG MsbMask;
 } ACPI_TIMER_INFO, *PACPI_TIMER_INFO;
 
-/* Serial (COM) port initial state */
+/* Serial (COM) port state */
 typedef struct _CPPORT
 {
     PUCHAR Address;
     ULONG Baud;
     USHORT Flags;
+    UCHAR Ring;
 } CPPORT, *PCPPORT;
 
 /* HAL framebuffer data structure */