From 6807ee552093006e07f9e9c3aaec20025d9a9a05 Mon Sep 17 00:00:00 2001
From: Lars Op den Kamp <lars@opdenkamp.eu>
Date: Wed, 13 Jun 2012 10:02:01 +0200
Subject: [PATCH] cec: display a warning message if libCEC was not compiled
 with adapter detection for the target platform

---
 src/lib/LibCEC.cpp                         | 6 ++++++
 src/lib/adapter/USBCECAdapterDetection.cpp | 9 +++++++++
 src/lib/adapter/USBCECAdapterDetection.h   | 3 ++-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/lib/LibCEC.cpp b/src/lib/LibCEC.cpp
index 56ece65..8838ff4 100644
--- a/src/lib/LibCEC.cpp
+++ b/src/lib/LibCEC.cpp
@@ -114,6 +114,12 @@ void CLibCEC::Close(void)
 
 int8_t CLibCEC::FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath /* = NULL */)
 {
+  if (!CUSBCECAdapterDetection::CanAutodetect())
+  {
+    AddLog(CEC_LOG_WARNING, "libCEC has not been compiled with adapter detection code for this target, so the path to the COM port has to be provided to libCEC");
+    return 0;
+  }
+
   return CUSBCECAdapterDetection::FindAdapters(deviceList, iBufSize, strDevicePath);
 }
 
diff --git a/src/lib/adapter/USBCECAdapterDetection.cpp b/src/lib/adapter/USBCECAdapterDetection.cpp
index 8775b4e..78b2760 100644
--- a/src/lib/adapter/USBCECAdapterDetection.cpp
+++ b/src/lib/adapter/USBCECAdapterDetection.cpp
@@ -115,6 +115,15 @@ bool FindComPort(CStdString &strLocation)
 }
 #endif
 
+bool CUSBCECAdapterDetection::CanAutodetect(void)
+{
+#if defined(__APPLE__) || defined(HAVE_LIBUDEV) || defined(__WINDOWS__) || defined(__FreeBSD__)
+  return true;
+#else
+  return false;
+#endif
+}
+
 uint8_t CUSBCECAdapterDetection::FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath /* = NULL */)
 {
   uint8_t iFound(0);
diff --git a/src/lib/adapter/USBCECAdapterDetection.h b/src/lib/adapter/USBCECAdapterDetection.h
index 9be3a57..9b6c624 100644
--- a/src/lib/adapter/USBCECAdapterDetection.h
+++ b/src/lib/adapter/USBCECAdapterDetection.h
@@ -38,6 +38,7 @@ namespace CEC
   class CUSBCECAdapterDetection
   {
   public:
-    static uint8_t FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath = NULL); 
+    static uint8_t FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath = NULL);
+    static bool    CanAutodetect(void);
   };
 };
-- 
2.34.1