printf(" looking at the device chain at '%s':\n", sysfs_dev->path);
printf(" BUS==\"%s\"\n", sysfs_dev->bus);
printf(" ID==\"%s\"\n", sysfs_dev->bus_id);
printf(" DRIVER==\"%s\"\n", sysfs_dev->driver_name);
printf(" looking at the device chain at '%s':\n", sysfs_dev->path);
printf(" BUS==\"%s\"\n", sysfs_dev->bus);
printf(" ID==\"%s\"\n", sysfs_dev->bus_id);
printf(" DRIVER==\"%s\"\n", sysfs_dev->driver_name);