Posix: Changed PreflightCheck to read Vdev

PreflightCheck was failing because it was trying to read actual
devices instad of virtual devices.

ADCSIM had a LINUXTEST ifdef that was removed.

posix_run.sh was using the wrong path

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

src/platforms/qurt/tests/hello/hello_start_qurt.cpp

@@ -0,0 +1,100 @@
+/****************************************************************************
+ *
+ *   Copyright (C) 2015 Mark Charlebois. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/**
+ * @file hello_start_linux.cpp
+ *
+ * @author Thomas Gubler <thomasgubler@gmail.com>
+ * @author Mark Charlebois <mcharleb@gmail.com>
+ */
+#include "hello_example.h"
+#include <px4_app.h>
+#include <px4_tasks.h>
+#include <stdio.h>
+#include <string.h>
+#include <sched.h>
+
+#define SCHED_DEFAULT	SCHED_FIFO
+#define SCHED_PRIORITY_MAX sched_get_priority_max(SCHED_FIFO)
+#define SCHED_PRIORITY_DEFAULT sched_get_priority_max(SCHED_FIFO)
+
+static int daemon_task;             /* Handle of deamon task / thread */
+
+//using namespace px4;
+
+extern "C" __EXPORT int hello_main(int argc, char *argv[]);
+int hello_main(int argc, char *argv[])
+{
+	
+	if (argc < 2) {
+		printf("usage: hello {start|stop|status}\n");
+		return 1;
+	}
+
+	if (!strcmp(argv[1], "start")) {
+
+		if (HelloExample::appState.isRunning()) {
+			printf("already running\n");
+			/* this is not an error */
+			return 0;
+		}
+
+		daemon_task = px4_task_spawn_cmd("hello",
+				       SCHED_DEFAULT,
+				       SCHED_PRIORITY_MAX - 5,
+				       2000,
+				       PX4_MAIN,
+				       (argv) ? (char* const*)&argv[2] : (char* const*)NULL);
+
+		return 0;
+	}
+
+	if (!strcmp(argv[1], "stop")) {
+		HelloExample::appState.requestExit();
+		return 0;
+	}
+
+	if (!strcmp(argv[1], "status")) {
+		if (HelloExample::appState.isRunning()) {
+			printf("is running\n");
+
+		} else {
+			printf("not started\n");
+		}
+
+		return 0;
+	}
+
+	printf("usage: hello_main {start|stop|status}\n");
+	return 1;
+}