From cc658bc63465b00f1cd6c0a841606433ea56e30a Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <michael@stapelberg.de>
Date: Sun, 20 Nov 2022 13:44:34 +0100
Subject: [PATCH] kint36: do not restart USB stack after wakeup

Without this change, the Teensy 3.6 kinT variant can wake a computer from
Suspend-to-RAM, but the keyboard does not actually produce any keypresses until
you un-plug and re-plug it.

related to https://github.com/kinx-project/kint/issues/59

related to https://github.com/qmk/qmk_firmware/issues/16934
---
 .../chibios/boards/PJRC_TEENSY_3_6/board/board.mk     | 11 +++++++++++
 .../chibios/boards/PJRC_TEENSY_3_6/board/extra.c      |  7 +++++++
 2 files changed, 18 insertions(+)
 create mode 100644 platforms/chibios/boards/PJRC_TEENSY_3_6/board/board.mk
 create mode 100644 platforms/chibios/boards/PJRC_TEENSY_3_6/board/extra.c

diff --git a/platforms/chibios/boards/PJRC_TEENSY_3_6/board/board.mk b/platforms/chibios/boards/PJRC_TEENSY_3_6/board/board.mk
new file mode 100644
index 000000000000..aba195db042a
--- /dev/null
+++ b/platforms/chibios/boards/PJRC_TEENSY_3_6/board/board.mk
@@ -0,0 +1,11 @@
+include $(CHIBIOS_CONTRIB)/os/hal/boards/PJRC_TEENSY_3_6/board.mk
+
+# List of all the board related files.
+BOARDSRC += $(BOARD_PATH)/board/extra.c
+
+# Required include directories
+BOARDINC += $(BOARD_PATH)/board
+
+# Shared variables
+ALLCSRC += $(BOARDSRC)
+ALLINC  += $(BOARDINC)
diff --git a/platforms/chibios/boards/PJRC_TEENSY_3_6/board/extra.c b/platforms/chibios/boards/PJRC_TEENSY_3_6/board/extra.c
new file mode 100644
index 000000000000..4940d6d99b5b
--- /dev/null
+++ b/platforms/chibios/boards/PJRC_TEENSY_3_6/board/extra.c
@@ -0,0 +1,7 @@
+#include <hal.h>
+
+void restart_usb_driver(USBDriver *usbp) {
+    // Do nothing. Restarting the USB driver on the Teensy 3.6 breaks it,
+    // resulting in a keyboard which can wake up a PC from Suspend-to-RAM, but
+    // does not actually produce any keypresses until you un-plug and re-plug.
+}