tools/iio/lsiio.c

Source file repositories/reference/linux-study-clean/tools/iio/lsiio.c

File Facts

System
Linux kernel
Corpus path
tools/iio/lsiio.c
Extension
.c
Size
3802 bytes
Lines
189
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

if (check_prefix(ent->d_name, type_device)) {
			char *dev_dir_name;

			if (asprintf(&dev_dir_name, "%s%s", iio_dir,
				     ent->d_name) < 0) {
				ret = -ENOMEM;
				goto error_close_dir;
			}

			ret = dump_one_device(dev_dir_name);
			if (ret) {
				free(dev_dir_name);
				goto error_close_dir;
			}

			free(dev_dir_name);
			if (verblevel >= VERBLEVEL_SENSORS)
				printf("\n");
		}
	}
	rewinddir(dp);
	while (ent = readdir(dp), ent) {
		if (check_prefix(ent->d_name, type_trigger)) {
			char *dev_dir_name;

			if (asprintf(&dev_dir_name, "%s%s", iio_dir,
				     ent->d_name) < 0) {
				ret = -ENOMEM;
				goto error_close_dir;
			}

			ret = dump_one_trigger(dev_dir_name);
			if (ret) {
				free(dev_dir_name);
				goto error_close_dir;
			}

			free(dev_dir_name);
		}
	}

	return (closedir(dp) == -1) ? -errno : 0;

error_close_dir:
	if (closedir(dp) == -1)
		perror("dump_devices(): Failed to close directory");

	return ret;
}

int main(int argc, char **argv)
{
	int c, err = 0;

	while ((c = getopt(argc, argv, "v")) != EOF) {
		switch (c) {
		case 'v':
			verblevel++;
			break;

		case '?':
		default:
			err++;
			break;
		}
	}
	if (err || argc > optind) {
		fprintf(stderr, "Usage: lsiio [options]...\n"
			"List industrial I/O devices\n"
			"  -v  Increase verbosity (may be given multiple times)\n");
		exit(1);
	}

	return dump_devices();
}

Annotation

Implementation Notes