Reading error on windows

[matteonistri]

Hello,
using this library on windows, I encountered an error on reading. I know for sure that there is something to read, but the Read method is blocking (even after the read timeout is elapsed) and it never returns. After a debug session, I found out that it's waiting for overlapped I/O to complete (here) that apparently never happens.
Here's my code:

mode := &serial.Mode{
		BaudRate: 115200,
		Parity:   serial.OddParity,
		DataBits: 8,
		StopBits: serial.TwoStopBits,
	}

port, err := serial.Open("COM1", mode)
n, err := port.Write([]byte("data\r"))
if err != nil {
	log.Fatal(err)
}
fmt.Printf("Sent %v bytes\n", n)

buff := make([]byte, 1024)
for {
	n, err = port.Read(buff)
	if err != nil {
		log.Fatal(err)
		break
	}
	if n == 0 {
		fmt.Println("\nEOF")
		break
	}
	fmt.Printf("%v", string(buff[:n]))
	fmt.Println(n)
}

Am I doing something wrong?

Also I found out that on handle creation (here), passing 0 instead of syscall.FILE_FLAG_OVERLAPPED, will make Read work.