console: allow sending a single command to the device.

This avoids having to open the session and makes scripting a lot easier
particularly when changing the settings of the device and needing a
restart to continue.

freestyle_hid/tools/hid_console.py

@@ -60,6 +60,11 @@
     callback=lambda ctx, param, value: pathlib.Path(value) if value else None,
     required=False,
 )
+@click.argument(
+    "command",
+    type=str,
+    required=False,
+)
 def main(
     *,
     text_command_type: int,
@@ -68,6 +73,7 @@ def main(
     device_path: Optional[pathlib.Path],
     encoding: str,
     encrypted_protocol: bool,
+    command: Optional[str],
 ):
     if not product_id and not device_path:
         raise click.UsageError(
@@ -85,6 +91,14 @@ def main(
 
     session.connect()
 
+    if command is not None:
+        try:
+            print(session.send_text_command(bytes(command, "ascii")))
+        except freestyle_hid.CommandError as error:
+            print(f"! {error!r}")
+
+        return
+
     while True:
         if sys.stdin.isatty():
             command = input(">>> ")