6 * slcan_attach.c - userspace tool for serial line CAN interface driver SLCAN
8 * Copyright (c) 2002-2005 Volkswagen Group Electronic Research
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, the following disclaimer and
16 * the referenced file 'COPYING'.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
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20 * 3. Neither the name of Volkswagen nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * Alternatively, provided that this notice is retained in full, this
25 * software may be distributed under the terms of the GNU General
26 * Public License ("GPL") version 2 as distributed in the 'COPYING'
27 * file from the main directory of the linux kernel source.
29 * The provided data structures and external interfaces from this code
30 * are not restricted to be used by modules with a GPL compatible license.
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45 * Send feedback to <socketcan-users@lists.berlios.de>
54 #include <sys/ioctl.h>
56 #define N_SLCAN 16 /* bad hack until it's not inside the Kernel */
58 void usage(char *name)
60 fprintf(stderr, "Usage: %s [-d] tty\n", name);
64 int main(int argc, char **argv)
72 while ((opt = getopt(argc, argv, "d")) != -1) {
83 if (argc - optind != 1)
88 if ((fd = open (tty, O_RDONLY | O_NOCTTY)) < 0) {
93 ldisc = detach ? N_TTY : N_SLCAN;
94 if (ioctl (fd, TIOCSETD, &ldisc) < 0) {