From 5cc2b9c1cf646f98914ff5785f6f3fb994c334d1 Mon Sep 17 00:00:00 2001
From: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Date: Tue, 2 Feb 2010 17:31:08 +0100
Subject: [PATCH] libftdi(-1): Add cmake option to enable ASYNC_MODE

Appended patch allows to openm async mode with something like
cmake -DASYNC-MODE=on

It should apply to libusb too.
---
 CMakeLists.txt |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 564dc4d..3e6c96d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,11 @@ set(MINOR_VERSION 17)
 set(VERSION_STRING ${MAJOR_VERSION}.${MINOR_VERSION})
 SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}")
 
+option(ASYNC-MODE "enable experimental async mode. Linux only")
+if(ASYNC-MODE)
+  add_definitions(-DLIBFTDI_LINUX_ASYNC_MODE)
+endif(ASYNC-MODE)
+
 # CMake
 if("${CMAKE_BUILD_TYPE}" STREQUAL "")
    set(CMAKE_BUILD_TYPE     Debug)
-- 
1.7.1