/*
- * $Id$
- */
-
-/*
* slcan_attach.c - userspace tool for serial line CAN interface driver SLCAN
*
* Copyright (c) 2002-2007 Volkswagen Group Electronic Research
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
- * Send feedback to <socketcan-users@lists.berlios.de>
+ * Send feedback to <linux-can@vger.kernel.org>
*
*/
#include <fcntl.h>
#include <unistd.h>
#include <getopt.h>
+#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
+#include <termios.h>
#define LDISC_N_SLCAN 17 /* default slcan line discipline since Kernel 2.6.25 */
fprintf(stderr, "\nUsage: %s [options] tty\n\n", prg);
fprintf(stderr, "Options: -o (send open command 'O\\r')\n");
fprintf(stderr, " -c (send close command 'C\\r')\n");
+ fprintf(stderr, " -f (read status flags with 'F\\r' to reset error states)\n");
fprintf(stderr, " -s <speed> (set CAN speed 0..8)\n");
fprintf(stderr, " -b <btr> (set bit time register value)\n");
fprintf(stderr, " -d (only detach line discipline)\n");
fprintf(stderr, " -w (attach - wait for keypess - detach)\n");
fprintf(stderr, " -n <name> (assign created netdevice name)\n");
fprintf(stderr, "\nExamples:\n");
- fprintf(stderr, "slcan_attach -w -o -s6 -c /dev/ttyS1\n");
+ fprintf(stderr, "slcan_attach -w -o -f -s6 -c /dev/ttyS1\n");
fprintf(stderr, "slcan_attach /dev/ttyS1\n");
fprintf(stderr, "slcan_attach -d /dev/ttyS1\n");
fprintf(stderr, "slcan_attach -w -n can15 /dev/ttyS1\n");
int waitkey = 0;
int send_open = 0;
int send_close = 0;
+ int send_read_status_flags = 0;
char *speed = NULL;
char *btr = NULL;
char buf[IFNAMSIZ+1];
char *name = NULL;
int opt;
- while ((opt = getopt(argc, argv, "l:dwocs:b:n:?")) != -1) {
+ while ((opt = getopt(argc, argv, "l:dwocfs:b:n:?")) != -1) {
switch (opt) {
case 'l':
fprintf(stderr, "Ignored option '-l'\n");
send_close = 1;
break;
+ case 'f':
+ send_read_status_flags = 1;
+ break;
+
case 's':
speed = optarg;
if (strlen(speed) > 1)
write(fd, buf, strlen(buf));
}
+ if (send_read_status_flags) {
+ sprintf(buf, "F\r");
+ write(fd, buf, strlen(buf));
+ }
+
if (send_open) {
sprintf(buf, "O\r");
write(fd, buf, strlen(buf));