From d5319cf2ca3babf7b594f91eacb8d85b1e4c9e4d Mon Sep 17 00:00:00 2001
From: Scott Duensing <scott@kangaroopunch.com>
Date: Tue, 13 Oct 2026 14:05:57 -0500
Subject: [PATCH] License headers added.

---
 drv/README.md   | 2 ++
 drv/commdrv.c   | 4 ++++
 drv/commdrv.def | 4 ++++
 drv/commdrv.h   | 4 ++++
 drv/isr.c       | 4 ++++
 drv/kpcomm.lnk  | 4 ++++
 drv/lpt.c       | 4 ++++
 drv/makefile    | 4 ++++
 drv/watcom.mk   | 4 ++++
 9 files changed, 34 insertions(+)

diff --git a/drv/README.md b/drv/README.md
index fe28556..f9e6096 100644
--- a/drv/README.md
+++ b/drv/README.md
@@ -666,6 +666,8 @@ KPCOMM is distributed under the MIT License (`LICENSE.md`): it may be used,
 changed and shipped, alone or with a program, as source or as the built
 driver, as long as the copyright and permission notice go with it.  The
 license covers this folder; the rest of the repository is not under it.
+Each source file here opens with a short header that says so
+(`SPDX-License-Identifier: MIT`).
 
 Built with Open Watcom (`watcom.mk`), the driver also carries Open Watcom
 code (its DLL start-up and C library helpers), and Open Watcom's license
diff --git a/drv/commdrv.c b/drv/commdrv.c
index 56d15b7..230e502 100644
--- a/drv/commdrv.c
+++ b/drv/commdrv.c
@@ -1,3 +1,7 @@
+// Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+// See LICENSE.md for license information.
+// SPDX-License-Identifier: MIT
+//
 // commdrv.c - KPCOMM.DRV -- High-speed COMM.DRV replacement
 //
 // Exported COMM.DRV entry points (Windows 3.1 DDAG signatures), port
diff --git a/drv/commdrv.def b/drv/commdrv.def
index d6e64ca..7a753fe 100644
--- a/drv/commdrv.def
+++ b/drv/commdrv.def
@@ -1,3 +1,7 @@
+; Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+; See LICENSE.md for license information.
+; SPDX-License-Identifier: MIT
+
 LIBRARY COMM
 DESCRIPTION 'KPCOMM -- High-Speed Serial Communications Driver'
 EXETYPE WINDOWS
diff --git a/drv/commdrv.h b/drv/commdrv.h
index 83a82ba..b71ddfd 100644
--- a/drv/commdrv.h
+++ b/drv/commdrv.h
@@ -1,3 +1,7 @@
+// Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+// See LICENSE.md for license information.
+// SPDX-License-Identifier: MIT
+//
 // commdrv.h - KPCOMM.DRV -- High-speed COMM.DRV replacement
 //
 // Types, UART/PIC/DPMI/BIOS constants, port state, and the prototypes
diff --git a/drv/isr.c b/drv/isr.c
index 5c65be9..e58b663 100644
--- a/drv/isr.c
+++ b/drv/isr.c
@@ -1,3 +1,7 @@
+// Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+// See LICENSE.md for license information.
+// SPDX-License-Identifier: MIT
+//
 // isr.c - Interrupt-time code for KPCOMM.DRV
 //
 // Hardware interrupt entry points, DPMI vector hooking with a per-IRQ
diff --git a/drv/kpcomm.lnk b/drv/kpcomm.lnk
index 305fc26..db2f59f 100644
--- a/drv/kpcomm.lnk
+++ b/drv/kpcomm.lnk
@@ -1,3 +1,7 @@
+# Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+# See LICENSE.md for license information.
+# SPDX-License-Identifier: MIT
+#
 # kpcomm.lnk -- wlink directives for KPCOMM.DRV built with Open Watcom
 # (watcom.mk): what commdrv.def gives MSVC's linker. The module name stays
 # COMM, as USER.EXE imports the driver by that name, and the entry points
diff --git a/drv/lpt.c b/drv/lpt.c
index ac68d86..2d86607 100644
--- a/drv/lpt.c
+++ b/drv/lpt.c
@@ -1,3 +1,7 @@
+// Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+// See LICENSE.md for license information.
+// SPDX-License-Identifier: MIT
+//
 // lpt.c - Parallel port support for KPCOMM.DRV
 //
 // The stock COMM.DRV also serves LPT1-LPT3 (cid 0x80-0x82), and Windows
diff --git a/drv/makefile b/drv/makefile
index 0de96df..4bb381c 100644
--- a/drv/makefile
+++ b/drv/makefile
@@ -1,3 +1,7 @@
+# Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+# See LICENSE.md for license information.
+# SPDX-License-Identifier: MIT
+#
 # makefile - High-speed COMM.DRV replacement for MSVC 1.52
 #
 # Build: nmake
diff --git a/drv/watcom.mk b/drv/watcom.mk
index e8df601..c65fc51 100644
--- a/drv/watcom.mk
+++ b/drv/watcom.mk
@@ -1,3 +1,7 @@
+# Part of KPCOMM, Copyright (c) 2026 Scott Duensing, under the MIT License.
+# See LICENSE.md for license information.
+# SPDX-License-Identifier: MIT
+#
 # watcom.mk -- KPCOMM.DRV built on Linux with Open Watcom v2's 16-bit
 # Windows target, for hosts without MSVC 1.52 (the makefile, for NMAKE, is
 # the MSVC build). Uses the Open Watcom JoeyLib's installer sets up, unless