rs

commit 4354099cb16c39ed251114cdfe71ad16a5a4ad72
parent 425e572b433f96a53a851d26aee2885081b2e030
Author: sin <sin@2f30.org>
Date:   Thu, 12 Dec 2013 11:44:50 +0000

Error out on ftdi_write_data() failures

Diffstat:
M
rs.c
 | 
10
++++++++--

1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/rs.c b/rs.c
@@ -67,8 +67,14 @@ loop(void)
 		n = read(STDIN_FILENO, buf, sizeof(buf));
 		if (n < 0 && errno == EINTR)
 			continue;
-		if (n > 0)
-			ftdi_write_data(&ftdictx, buf, n);
+		if (n > 0) {
+			n = ftdi_write_data(&ftdictx, buf, n);
+			if (n < 0) {
+				ttyrestore();
+				enprintf(EXIT_FAILURE, "ftdi_write_data: write error: %s\n",
+					 ftdi_get_error_string(&ftdictx));
+			}
+		}
 		n = ftdi_read_data(&ftdictx, buf, sizeof(buf));
 		if (n < 0) {
 			ttyrestore();