X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/blobdiff_plain/47ea478b44e3c529201c6678f5e2cbbe0fc60bf9..9718f9faebacf4cd01307b87e5dfb89ed012e8aa:/flash-ota.c

diff --git a/flash-ota.c b/flash-ota.c
index ea2bcad..71cb57e 100644
--- a/flash-ota.c
+++ b/flash-ota.c
@@ -227,7 +227,7 @@ int send_hm_message(struct ota_dev *dev, struct recv_data *rdata, uint8_t *msg)
 				}
 
 				if (msg[CTL] & 0x20) {
-					int cnt = 10;
+					int cnt = 3;
 					int pfd;
 					do {
 						errno = 0;
@@ -242,6 +242,11 @@ int send_hm_message(struct ota_dev *dev, struct recv_data *rdata, uint8_t *msg)
 							break;
 						}
 					} while(cnt--);
+
+					if (cnt == -1) {
+						fprintf(stderr, "\nMissing ACK!\n");
+						return 0;
+					}
 				}
 			}
 			break;
@@ -329,7 +334,7 @@ int main(int argc, char **argv)
 
 	printf("HomeMatic OTA flasher version " VERSION "\n\n");
 
-	while((opt = getopt(argc, argv, "f:s:c:s:h")) != -1) {
+	while((opt = getopt(argc, argv, "b:c:f:hs:")) != -1) {
 		switch (opt) {
 			case 'b':
 				bps = atoi(optarg);