int main()
{
int ret, file, cmd;
char *msg = malloc(MSG_SIZE);
file = open("/dev/pen0", 0);
if (file < 0) {
printf("error in open file\n");
exit(-1);
}
printf("Enter command:\n1. LED OFF\n2. LED ON\n3. Read USB Interrup\ninput: ");
scanf("%d", &cmd);
if (cmd == 1) {
ret = usbdev_ioctl(file, 0, USB_LOW, msg);
}
else if (cmd == 2) {
ret = usbdev_ioctl(file, 0, USB_HIGH, msg);
}
else if (cmd == 3) {
ret = usbdev_ioctl(file, 0, USB_READ, msg);
printf("Data read: \"%s\"\n", msg);
}
else
printf("Wrong command\n");
if (!ret)
printf("Successfull\n");
else
printf("Error: ret %d\n", ret);
}
static int do_test(struct testdev *dev)
{
int ret = 0;
int fd, i;
int status;
if (dev->test > TEST_CASES) {
fprintf(stderr, "unsupported test case %d\n", dev->test);
return -1;
}
if ((fd = open(dev->name, O_RDWR)) < 0) {
perror("can't open dev file r/w");
return -1;
}
restart:
for (i = 0; i < TEST_CASES; i++) {
if (dev->test != -1 && dev->test != i)
continue;
dev->param.test_num = i;
status = usbdev_ioctl (fd, dev->ifnum,
USBTEST_REQUEST, &dev->param);
if (status < 0 && errno == EOPNOTSUPP)
continue;
/* NOTE: each thread emits complete lines; no fragments! */
if (status < 0) {
char buf [80];
int err = errno;
if (strerror_r (errno, buf, sizeof buf)) {
snprintf (buf, sizeof buf, "error %d", err);
errno = err;
}
printf ("%s test %d --> %d (%s)\n",
dev->name, i, errno, buf);
ret = errno;
goto exit;
} else
printf ("%s test %d, %4d.%.06d secs\n", dev->name, i,
(int) dev->param.duration.tv_sec,
(int) dev->param.duration.tv_usec);
fflush (stdout);
}
if (dev->forever)
goto restart;
exit:
close(fd);
return ret;
}
static void *handle_testdev (void *arg)
{
struct testdev *dev = arg;
int fd, i;
int status;
if ((fd = open (dev->name, O_RDWR)) < 0) {
perror ("can't open dev file r/w");
return 0;
}
restart:
for (i = 0; i < TEST_CASES; i++) {
if (dev->test != -1 && dev->test != i)
continue;
dev->param.test_num = i;
status = usbdev_ioctl (fd, dev->ifnum,
USBTEST_REQUEST, &dev->param);
if (status < 0 && errno == EOPNOTSUPP)
continue;
/* FIXME need a "syslog it" option for background testing */
/* NOTE: each thread emits complete lines; no fragments! */
if (status < 0) {
char buf [80];
int err = errno;
if (strerror_r (errno, buf, sizeof buf)) {
snprintf (buf, sizeof buf, "error %d", err);
errno = err;
}
printf ("%s test %d --> %d (%s)\n",
dev->name, i, errno, buf);
} else
printf ("%s test %d, %4d.%.06d secs\n", dev->name, i,
(int) dev->param.duration.tv_sec,
(int) dev->param.duration.tv_usec);
fflush (stdout);
}
if (dev->forever)
goto restart;
close (fd);
return arg;
}
