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 kinx-project/kint#59 related to qmk#16934
stapelberg · Nov 20, 2022 · cc658bc · cc658bc
1 parent 543a863
commit cc658bc
Show file tree

Hide file tree

Showing 2 changed files with 18 additions and 0 deletions.
diff --git a/platforms/chibios/boards/PJRC_TEENSY_3_6/board/board.mk 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
@@ -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.
+}