X-Git-Url: https://rtime.felk.cvut.cz/gitweb/canping.git/blobdiff_plain/92214b2447fbe0ccee1f1bdb64e051709089ca0e..9c02efb698d2072ac7de98f5f606b44280c40518:/src/vca_canping.c

diff --git a/src/vca_canping.c b/src/vca_canping.c
index 23bdf98..50c19df 100644
--- a/src/vca_canping.c
+++ b/src/vca_canping.c
@@ -248,8 +248,9 @@ void *master_thread(void *arg)
 	struct canfilt_t canfilt; /* filter for received messages */
 
 	if (!option_open_once) {
-		/* Open can driver */
-		if(vca_open_handle(&vcah, option_device, NULL, 0) < 0) {
+		/* Open the CAN driver and disable (D) reception of
+		 * all messages until we setup a filter below. */
+		if(vca_open_handle(&vcah, option_device, "D", 0) < 0) {
 			perror("open");
 			fprintf(stderr, "Error opening %s (for id %d)\n", option_device, ping_id);
 			exit(EXIT_CANNOT_OPEN);	
@@ -466,8 +467,9 @@ void *slave_thread(void *arg)
 	struct canfilt_t canfilt; /* filter for received messages */
 
 	if (!option_open_once) {
-		/* Open the CAN driver */
-		if(vca_open_handle(&vcah, option_device, NULL, 0) < 0) {
+		/* Open the CAN driver and disable (D) reception of
+		 * all messages until we setup a filter below. */
+		if(vca_open_handle(&vcah, option_device, "D", 0) < 0) {
 			perror("open");
 			printf("Error opening %s (for id %d)\n", option_device, ping_id);
 			exit(EXIT_CANNOT_OPEN);