struct iio_context * iio_create_context_from_uri(const char *uri)
{
#ifdef WITH_LOCAL_BACKEND
if (strcmp(uri, "local:") == 0) /* No address part */
return iio_create_local_context();
#endif
#ifdef WITH_XML_BACKEND
if (strncmp(uri, "xml:", sizeof("xml:") - 1) == 0)
return iio_create_xml_context(uri + sizeof("xml:") - 1);
#endif
#ifdef WITH_NETWORK_BACKEND
if (strncmp(uri, "ip:", sizeof("ip:") - 1) == 0)
return iio_create_network_context(uri+3);
#endif
#ifdef WITH_USB_BACKEND
if (strncmp(uri, "usb:", sizeof("usb:") - 1) == 0)
return usb_create_context_from_uri(uri);
#endif
#ifdef WITH_SERIAL_BACKEND
if (strncmp(uri, "serial:", sizeof("serial:") - 1) == 0)
return serial_create_context_from_uri(uri);
#endif
errno = ENOSYS;
return NULL;
}
int main(int argc, char **argv)
{
char *xml;
struct iio_context *ctx;
int c, option_index = 0, arg_index = 0, xml_index = 0, ip_index = 0;
enum backend backend = LOCAL;
while ((c = getopt_long(argc, argv, "+hn:x:",
options, &option_index)) != -1) {
switch (c) {
case 'h':
usage();
return EXIT_SUCCESS;
case 'n':
if (backend != LOCAL) {
fprintf(stderr, "-x and -n are mutually exclusive\n");
return EXIT_FAILURE;
}
backend = NETWORK;
arg_index += 2;
ip_index = arg_index;
break;
case 'x':
if (backend != LOCAL) {
fprintf(stderr, "-x and -n are mutually exclusive\n");
return EXIT_FAILURE;
}
backend = XML;
arg_index += 2;
xml_index = arg_index;
break;
case '?':
return EXIT_FAILURE;
}
}
if (arg_index >= argc) {
fprintf(stderr, "Incorrect number of arguments.\n\n");
usage();
return EXIT_FAILURE;
}
if (backend == XML)
ctx = iio_create_xml_context(argv[xml_index]);
else if (backend == NETWORK)
ctx = iio_create_network_context(argv[ip_index]);
else
ctx = iio_create_default_context();
if (!ctx) {
fprintf(stderr, "Unable to create IIO context\n");
return EXIT_FAILURE;
}
xml = strdup(iio_context_get_xml(ctx));
if (!xml) {
iio_context_destroy(ctx);
return EXIT_FAILURE;
}
printf("XML generated:\n\n%s\n\n", xml);
iio_context_destroy(ctx);
ctx = iio_create_xml_context_mem(xml, strlen(xml));
if (!ctx) {
fprintf(stderr, "Unable to re-generate context\n");
} else {
printf("Context re-creation from generated XML suceeded!\n");
iio_context_destroy(ctx);
}
free(xml);
return EXIT_SUCCESS;
}
int main(int argc, char **argv)
{
struct iio_context *ctx;
int c, option_index = 0, arg_index = 0;
enum backend backend = LOCAL;
unsigned int major, minor;
char git_tag[8];
int ret;
while ((c = getopt_long(argc, argv, "+hn:x:",
options, &option_index)) != -1) {
switch (c) {
case 'h':
usage();
return EXIT_SUCCESS;
case 'n':
if (backend != LOCAL) {
ERROR("-x and -n are mutually exclusive\n");
return EXIT_FAILURE;
}
backend = NETWORK;
arg_index += 2;
break;
case 'x':
if (backend != LOCAL) {
ERROR("-x and -n are mutually exclusive\n");
return EXIT_FAILURE;
}
backend = XML;
arg_index += 2;
break;
case '?':
return EXIT_FAILURE;
}
}
if (arg_index >= argc) {
fprintf(stderr, "Incorrect number of arguments.\n\n");
usage();
return EXIT_FAILURE;
}
iio_library_get_version(&major, &minor, git_tag);
INFO("Library version: %u.%u (git tag: %s)\n", major, minor, git_tag);
if (backend == XML)
ctx = iio_create_xml_context(argv[arg_index]);
else if (backend == NETWORK)
ctx = iio_create_network_context(argv[arg_index]);
else
ctx = iio_create_local_context();
if (!ctx) {
ERROR("Unable to create IIO context\n");
return EXIT_FAILURE;
}
INFO("IIO context created with %s backend.\n",
iio_context_get_name(ctx));
ret = iio_context_get_version(ctx, &major, &minor, git_tag);
if (!ret)
INFO("Backend version: %u.%u (git tag: %s)\n",
major, minor, git_tag);
else
ERROR("Unable to get backend version: %i\n", ret);
unsigned int nb_devices = iio_context_get_devices_count(ctx);
INFO("IIO context has %u devices:\n", nb_devices);
unsigned int i;
for (i = 0; i < nb_devices; i++) {
const struct iio_device *dev = iio_context_get_device(ctx, i);
const char *name = iio_device_get_name(dev);
INFO("\t%s: %s\n", iio_device_get_id(dev), name ? name : "" );
unsigned int nb_channels = iio_device_get_channels_count(dev);
INFO("\t\t%u channels found:\n", nb_channels);
unsigned int j;
for (j = 0; j < nb_channels; j++) {
struct iio_channel *ch = iio_device_get_channel(dev, j);
const char *type_name;
if (iio_channel_is_output(ch))
type_name = "output";
else
type_name = "input";
name = iio_channel_get_name(ch);
INFO("\t\t\t%s: %s (%s)\n",
iio_channel_get_id(ch),
name ? name : "", type_name);
unsigned int nb_attrs = iio_channel_get_attrs_count(ch);
if (!nb_attrs)
continue;
INFO("\t\t\t%u channel-specific attributes found:\n",
nb_attrs);
unsigned int k;
for (k = 0; k < nb_attrs; k++) {
const char *attr = iio_channel_get_attr(ch, k);
char buf[1024];
ret = (int) iio_channel_attr_read(ch,
attr, buf, 1024);
if (ret > 0)
INFO("\t\t\t\tattr %u: %s"
" value: %s\n", k,
attr, buf);
else if (ret == -ENOSYS)
INFO("\t\t\t\tattr %u: %s\n", k, attr);
else
ERROR("Unable to read attribute %s\n",
attr);
}
}
unsigned int nb_attrs = iio_device_get_attrs_count(dev);
if (!nb_attrs)
continue;
INFO("\t\t%u device-specific attributes found:\n", nb_attrs);
for (j = 0; j < nb_attrs; j++) {
const char *attr = iio_device_get_attr(dev, j);
char buf[1024];
ret = (int) iio_device_attr_read(dev,
attr, buf, 1024);
if (ret > 0)
INFO("\t\t\t\tattr %u: %s value: %s\n", j,
attr, buf);
else if (ret == -ENOSYS)
INFO("\t\t\t\tattr %u: %s\n", j, attr);
else
ERROR("Unable to read attribute: %s\n", attr);
}
}
iio_context_destroy(ctx);
return EXIT_SUCCESS;
}
