Send device reset command

src/main.rs

@@ -17,18 +17,31 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             if let Ok(repo) = get_prop(&mut port, b"repo") {
                 println!("repo success: {}", String::from_utf8_lossy(&repo));
             }
+
+            if send_cmd(&mut port, b"reset").is_ok() {
+                println!("Device reset");
+                continue;
+            }
         }
     }
 
     Ok(())
 }
 
+fn send_cmd(
+    port: &mut Box<dyn serialport::SerialPort>,
+    cmd: &[u8],
+) -> Result<(), Box<dyn std::error::Error>> {
+    port.write_all(cmd)?;
+    port.flush()?;
+    Ok(())
+}
+
 fn get_prop(
     port: &mut Box<dyn serialport::SerialPort>,
     prop: &[u8],
 ) -> Result<Vec<u8>, Box<dyn std::error::Error>> {
-    port.write_all(prop)?;
-    port.flush()?;
+    send_cmd(port, prop)?;
 
     let mut len_buf = [0u8; 1];
     port.read_exact(&mut len_buf)?;