int cambri_init(void) {
int ret = 0;
int c, i;
for (c = 0; c < NUM_CAMBRIS; c++) {
const char* name = get_tty_name(c);
int fd = -1;
if (name) fd = open(name, O_RDWR | O_NOCTTY);
if (!name || fd < 0) {
cambri_fds[c] = 0;
ret++;
}
else {
cambri_fds[c] = fd;
struct termios tty = {};
tcgetattr(fd, &tty);
tty.c_lflag = 0;
tty.c_oflag = 0;
tty.c_iflag = 0;
tty.c_cflag = CS8 | CLOCAL | CREAD;
tty.c_cc[VTIME] = 1; // 0.1 s read timeout
tty.c_cc[VMIN] = 0; // non-blocking
cfsetospeed(&tty, B115200);
cfsetispeed(&tty, B115200);
tcsetattr(fd, TCSANOW, &tty);
// enable profile 4 only
char buf[1024] = {};
for (i = 1; i <= 6; i++) {
cambri_write(c, "en_profile %d %d", i, i == PROFILE);
if (cambri_read(c, buf, sizeof(buf)) == 0) {
error(1, 0, "cambri_init");
}
}
}
}
cambri_log = fopen("cambri.log", "w");
fprintf(cambri_log, " time ");
for (i = 0; i < NUM_CAMBRIS * 8; i++) fprintf(cambri_log, " | %5d", (i/8+1) * 1000 + i%8+1);
fprintf(cambri_log, "\n");
fprintf(cambri_log, "-----------");
for (i = 0; i < NUM_CAMBRIS * 8; i++) fprintf(cambri_log, "-+------");
fprintf(cambri_log, "\n");
fflush(cambri_log);
status_log = fopen("status.log", "w");
return ret;
}
int main(void)
{
char ctermid_name[L_ctermid];
ctermid(ctermid_name);
/*
* Most UNIX systems use /dev/tty as the ame of the controlling terminal, so
* this function is intended to aid portability to other operating systems.
*/
printf("The name of the controller terminal is: \"%s\" "
"(max len = %d)\n\n", ctermid_name, L_ctermid);
printf("Testing to see which file descriptors refer to a terminal:\n");
printf("fd 0: %s\n", get_tty_name(STDIN_FILENO));
printf("fd 1: %s\n", get_tty_name(STDOUT_FILENO));
printf("fd 2: %s\n", get_tty_name(STDERR_FILENO));
printf("\nUse redirection (e.g. ./ttyinfo.o < /etc/passwd 2> /dev/null)\n"
"to see how the results may change\n");
return 0;
}
