Add fs_full usb_check test

Change-Id: Ib9fec9c1d9c1e316657d21c3a12f8294b6235698
diff --git a/mbtk/test/usb_check.c b/mbtk/test/usb_check.c
new file mode 100755
index 0000000..7d81a7c
--- /dev/null
+++ b/mbtk/test/usb_check.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <fcntl.h>
+
+#include "mbtk_utils.h"
+
+static int running = 0;
+
+static void sig_handler(int sig)
+{
+    printf("Signal : %d\n", sig);
+    running = 0;
+}
+
+
+int main(int argc, char *argv[])
+{
+    int fd = open("/tmp/usb.info", O_CREAT | O_WRONLY);
+    signal(SIGINT, sig_handler);
+    signal(SIGTERM, sig_handler);
+    if(fd > 0) {
+        char buff[1024];
+        running = 1;
+        while(running){
+            memset(buff, 0, 1024);
+            if(mbtk_cmd_line("cat /sys/class/android_usb/android0/state", buff, 1024)) {
+                write(fd, buff, strlen(buff));
+                write(fd, "\n", 1);
+            }
+            sleep(1);
+        }
+        close(fd);
+    }
+    return 0;
+}
+