From 5a2a781fc9ef32ffd80626dddede12b8d49cc138 Mon Sep 17 00:00:00 2001
From: tmk <hasu@tmk-kbd.com>
Date: Tue, 29 Mar 2016 11:15:09 +0900
Subject: [PATCH] next_usb: Stop debug print while no keyboard

---
 converter/next_usb/matrix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/converter/next_usb/matrix.c b/converter/next_usb/matrix.c
index d91cd257..524d5784 100644
--- a/converter/next_usb/matrix.c
+++ b/converter/next_usb/matrix.c
@@ -187,7 +187,7 @@ uint8_t matrix_scan(void)
     
     uint32_t resp = (next_kbd_recv());
     
-    if (resp == NEXT_KBD_KMBUS_IDLE)
+    if (!resp || resp == NEXT_KBD_KMBUS_IDLE)
     {
         return 0;
     }
-- 
2.39.3