From 7dd7bd2b0399505cd44d47a8b0d546afc990259c Mon Sep 17 00:00:00 2001
From: Soren Jorvang <soren.jorvang@gmail.com>
Date: Tue, 9 Nov 2010 20:46:11 +0000
Subject: [PATCH] Write bluetooth packets asynchronously to prevent blocking on
 commands that take some time to complete in the wiimote.

From <matthew.powersfreeling>. Fixes issue 3437.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6365 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 Externals/WiiUse/Src/io_osx.m | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Externals/WiiUse/Src/io_osx.m b/Externals/WiiUse/Src/io_osx.m
index d22a2956cc..c89b69523c 100644
--- a/Externals/WiiUse/Src/io_osx.m
+++ b/Externals/WiiUse/Src/io_osx.m
@@ -330,7 +330,12 @@ int wiiuse_io_read(struct wiimote_t *wm)
 
 int wiiuse_io_write(struct wiimote_t *wm, byte *buf, int len)
 {
-	[cchan writeSync: buf length: len];
+	IOReturn ret;
 
-	return len;
+	ret = [cchan writeAsync: buf length: len refcon: nil];
+
+	if (ret == kIOReturnSuccess)
+		return len;
+	else
+		return 0;
 }