iteration in V4L2 needs to be in reversed

libs/indibase/webcam/v4l2_base.cpp

@@ -2998,7 +2998,9 @@ std::map<std::string, std::string> V4L2_Base::enumerate()
         std::vector<std::string> detectedDevices;
         int devCount = 0;
         devCount = scandir(prefix.c_str(), &namelist, video_dev_file_select, alphasort);
-        for (int i = 0; i < devCount; i++)
+        // Need to do this in reverse because some devices might have two end points
+        // e.g. /dev/video0 and /dev/video1 for the same device but only /dev/video0 can be used to control it.
+        for (int i = devCount - 1; i >= 0; i--)
         {
             std::string s(namelist[i]->d_name);
             s.erase(s.find_last_not_of(" \n\r\t") + 1);