usart: do not send newlines

source/platform/usart.c

@@ -108,7 +108,6 @@ int console_getline(struct console *console_, char *buf, size_t n)
 		switch (c) {
 		case '\r':
 			usart_send_blocking(console->dev, '\r');
-			usart_send_blocking(console->dev, '\n');
 			return 0;
 		case 10:
 		case 127:
@@ -197,8 +196,13 @@ static ssize_t usart_write(void *cookie, const char *buf, size_t n)
 	size_t i;
 
 	for (i = 0; i < n; ++i) {
-		if (buf[i] == '\n')
+		if (buf[i] == '\r')
+			continue;
+
+		if (buf[i] == '\n') {
 			usart_send_blocking(console->dev, '\r');
+			continue;
+		}
 
 		usart_send_blocking(console->dev, buf[i]);
 	};