From 98052b8afd52c93e2d5a1e6acd6afd6e6d2a288c Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Sun, 11 Nov 2012 11:47:09 +0900
Subject: [PATCH] Disable JTAG function for hid_liber to use PORTF.

---
 keyboard/hid_liber/matrix.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/keyboard/hid_liber/matrix.c b/keyboard/hid_liber/matrix.c
index de1790d7..8e373919 100644
--- a/keyboard/hid_liber/matrix.c
+++ b/keyboard/hid_liber/matrix.c
@@ -137,6 +137,10 @@ uint8_t matrix_cols(void)
 
 void matrix_init(void)
 {
+    // To use PORTF disable JTAG with writing JTD bit twice within four cycles.
+    MCUCR |= (1<<JTD);
+    MCUCR |= (1<<JTD);
+
     // initialize row and col
     setup_io_pins();
     setup_leds();
-- 
2.39.3