usart: re-route input as output

source/drivers/usart_console.c

@@ -23,10 +23,12 @@ static ssize_t usart_read(void *cookie, char *buf, size_t n)
 		buf[i] = (char)usart_recv_blocking(dev);
 
 		if (buf[i] == '\r') {
-			buf[i] = '\n';
-			++i;
+			buf[i++] = '\n';
+			putchar('\n');
 			break;
 		}
+
+		putchar(buf[i]);
 	}
 
 	return i;
@@ -89,6 +91,7 @@ void console_init(void)
 	stdout = fopencookie((void *)USART1, "w", console_out);
 	stderr = fopencookie((void *)USART1, "w", console_out);
 
-	setlinebuf(stdout);
+	setbuf(stdout, NULL);
+	//setlinebuf(stdout);
 	setbuf(stderr, NULL);
 }