diff --git a/mavsdk/ftp/ftp.py b/mavsdk/ftp/ftp.py
index a5fa05ea..199b83fa 100644
--- a/mavsdk/ftp/ftp.py
+++ b/mavsdk/ftp/ftp.py
@@ -345,6 +345,8 @@ async def download(self, remote_file_path, local_dir):
         """
 
         request = ftp_pb2.SubscribeDownloadRequest()
+        request.remote_file_path = remote_file_path
+        request.local_dir = local_dir
         download_stream = self._stub.SubscribeDownload(request)
 
         try:
@@ -393,6 +395,8 @@ async def upload(self, local_file_path, remote_dir):
         """
 
         request = ftp_pb2.SubscribeUploadRequest()
+        request.local_file_path = local_file_path
+        request.remote_dir = remote_dir
         upload_stream = self._stub.SubscribeUpload(request)
 
         try:
diff --git a/mavsdk/log_files/log_files.py b/mavsdk/log_files/log_files.py
index 51acea46..ec73c13b 100644
--- a/mavsdk/log_files/log_files.py
+++ b/mavsdk/log_files/log_files.py
@@ -392,6 +392,8 @@ async def download_log_file(self, id, path):
         """
 
         request = logFiles_pb2.SubscribeDownloadLogFileRequest()
+        request.id = id
+        request.path = path
         download_log_file_stream = self._stub.SubscribeDownloadLogFile(request)
 
         try:
diff --git a/mavsdk/system.py b/mavsdk/system.py
index a2cac98c..34af16b3 100644
--- a/mavsdk/system.py
+++ b/mavsdk/system.py
@@ -130,7 +130,7 @@ def follow_me(self) -> follow_me.FollowMe:
     def ftp(self) -> ftp.Ftp:
         if "ftp" not in self._plugins:
             raise RuntimeError(self.error_uninitialized("Ftp"))
-        return self._plugins["Ftp"]
+        return self._plugins["ftp"]
 
     @property
     def geofence(self) -> geofence.Geofence:
diff --git a/other/templates/py/stream.j2 b/other/templates/py/stream.j2
index 2c2a6186..db187a95 100644
--- a/other/templates/py/stream.j2
+++ b/other/templates/py/stream.j2
@@ -25,6 +25,22 @@ async def {{ name.lower_snake_case }}(self{% for param in params %}, {{ param.na
     """
 
     request = {{ plugin_name.lower_camel_case }}_pb2.Subscribe{{ name.upper_camel_case }}Request()
+    {% for param in params %}
+        {%- if param.type_info.is_primitive -%}
+    request.{{ param.name.lower_snake_case }} = {{ param.name.lower_snake_case }}
+        {%- else -%}
+            {% if param.type_info.is_repeated %}
+    rpc_elems_list = []
+    for elem in {{ param.name.lower_snake_case }}:
+        rpc_elem = {{ plugin_name.lower_snake_case }}_pb2.{{ param.type_info.inner_name }}()
+        elem.translate_to_rpc(rpc_elem)
+        rpc_elems_list.append(rpc_elem)
+    request.{{ param.name.lower_snake_case }}.extend(rpc_elems_list)
+            {% else %}
+    {{ param.name.lower_snake_case }}.translate_to_rpc(request.{{ param.name.lower_snake_case }})
+            {% endif %}
+        {% endif %}
+    {% endfor -%}
     {{ name.lower_snake_case }}_stream = self._stub.Subscribe{{ name.upper_camel_case }}(request)
 
     try: