klippy: track the device model

Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>

klippy/klippy.py

@@ -327,12 +327,14 @@ def main():
     extra_git_desc += "\nTracked URL: %s" % (git_info["url"])
     start_args['software_version'] = git_vers
     start_args['cpu_info'] = util.get_cpu_info()
+    start_args['device'] = util.get_device_info()
     if bglogger is not None:
         versions = "\n".join([
             "Args: %s" % (sys.argv,),
             "Git version: %s%s" % (repr(start_args['software_version']),
                                    extra_git_desc),
             "CPU: %s" % (start_args['cpu_info'],),
+            "Device: %s" % (start_args['device']),
             "Python: %s" % (repr(sys.version),)])
         logging.info(versions)
     elif not options.debugoutput:

klippy/util.py

@@ -125,6 +125,17 @@ def get_cpu_info():
     model_name = dict(lines).get("model name", "?")
     return "%d core %s" % (core_count, model_name)
 
+def get_device_info():
+    try:
+        f = open('/proc/device-tree/model', 'r')
+        data = f.read()
+        f.close()
+    except (IOError, OSError) as e:
+        logging.debug("Exception on read /proc/device-tree/model: %s",
+                      traceback.format_exc())
+        return "?"
+    return data.rstrip(' \0')
+
 def get_version_from_file(klippy_src):
     try:
         with open(os.path.join(klippy_src, '.version')) as h: