From b62f6b536a2df49b759c1eecd484108d03b1f2d6 Mon Sep 17 00:00:00 2001
From: nearology <hi@aminx.me>
Date: Mon, 9 Nov 2026 20:19:52 +0330
Subject: [PATCH] init

---
 scripts/serial_command.py | 67 +++++++++++++++++++++++++++++++++++++++
 workflows/serial.yml      | 16 ++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 scripts/serial_command.py
 create mode 100644 workflows/serial.yml

diff --git a/scripts/serial_command.py b/scripts/serial_command.py
new file mode 100644
index 0000000..003f8eb
--- /dev/null
+++ b/scripts/serial_command.py
@@ -0,0 +1,67 @@
+import serial
+import sys
+import time
+
+PORT = "/dev/ttyUSB0"
+BAUDRATE = 115200
+TIMEOUT = 2
+MAX_WAIT = 10
+
+COMMAND = "bdinfo"
+
+try:
+    with serial.Serial(
+        port=PORT,
+        baudrate=BAUDRATE,
+        timeout=0.2,
+        write_timeout=TIMEOUT
+    ) as ser:
+
+        print(f"Connected to {PORT}", flush=True)
+
+        # Clear old serial data
+        ser.reset_input_buffer()
+
+        # Send command to U-Boot
+        ser.write((COMMAND + "\r").encode())
+        ser.flush()
+
+        print(f"Command sent: {COMMAND}", flush=True)
+        print("------ U-Boot Response ------", flush=True)
+
+        response = bytearray()
+        start_time = time.monotonic()
+        last_data_time = start_time
+
+        while time.monotonic() - start_time < MAX_WAIT:
+
+            if ser.in_waiting:
+                data = ser.read(ser.in_waiting)
+                response.extend(data)
+
+                # Print response in real time
+                print(
+                    data.decode("utf-8", errors="replace"),
+                    end="",
+                    flush=True
+                )
+
+                last_data_time = time.monotonic()
+
+            # Stop when no new data arrives for 2 seconds
+            if response and time.monotonic() - last_data_time > TIMEOUT:
+                break
+
+            time.sleep(0.05)
+
+        print("\n-----------------------------")
+
+        if not response:
+            print("ERROR: No response from U-Boot")
+            sys.exit(1)
+
+        print("Command completed successfully")
+
+except serial.SerialException as e:
+    print(f"Serial error: {e}")
+    sys.exit(1)
diff --git a/workflows/serial.yml b/workflows/serial.yml
new file mode 100644
index 0000000..1c96f44
--- /dev/null
+++ b/workflows/serial.yml
@@ -0,0 +1,16 @@
+name: U-Boot Serial Command
+
+on:
+  workflow_dispatch:
+
+jobs:
+  uboot-command:
+    runs-on: serial-runner
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Execute U-Boot bdinfo
+        run: |
+          ~/serial-venv/bin/python scripts/serial_command.py