From e8e8f93bcf0cdc8d72d35662db5a1da4716762b8 Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Tue, 8 Oct 2013 12:23:25 +0900
Subject: Fix ADB missing keystrokes problem Thanks, blargg! #14

- Add delay between scans to prevent overlaod of ADB keyboard controllers
- <http://geekhack.org/index.php?topic=14290.msg1068919#msg1068919>
---
 protocol/adb.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'protocol')

diff --git a/protocol/adb.c b/protocol/adb.c
index e4e26b7d7b..155d223fe7 100644
--- a/protocol/adb.c
+++ b/protocol/adb.c
@@ -83,6 +83,12 @@ bool adb_host_psw(void)
 }
 #endif
 
+/*
+ * Don't call this in a row without the delay, otherwise it makes some of poor controllers
+ * overloaded and misses strokes. Recommended delay is 16ms.
+ *
+ * Thanks a lot, blargg! <http://geekhack.org/index.php?topic=14290.msg1068919#msg1068919>
+ */
 uint16_t adb_host_kbd_recv(void)
 {
     uint16_t data = 0;
-- 
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