+static int add_device(const char *path, const char *subsystem)
+{
+ struct udevice udev;
+ struct sysfs_class_device *class_dev;
+ const char *devpath;
+
+ devpath = &path[strlen(sysfs_path)];
+
+ /* clear and set environment for next event */
+ clearenv();
+ setenv("ACTION", "add", 1);
+ setenv("DEVPATH", devpath, 1);
+ setenv("SUBSYSTEM", subsystem, 1);
+ setenv("UDEV_START", "1", 1);
+ if (udev_log_str)
+ setenv("UDEV_LOG", udev_log_str, 1);
+ if (udev_run_str)
+ setenv("UDEV_RUN", udev_run_str, 1);
+ dbg("exec: '%s' (%s)\n", devpath, path);
+
+ class_dev = sysfs_open_class_device_path(path);
+ if (class_dev == NULL) {
+ dbg("sysfs_open_class_device_path failed");
+ return -1;
+ }
+
+ udev_init_device(&udev, devpath, subsystem, "add");
+ udev.devt = get_devt(class_dev);
+ if (!udev.devt && udev.type != DEV_NET) {
+ dbg("sysfs_open_class_device_path failed");
+ return -1;
+ }
+ udev_rules_get_name(&rules, &udev, class_dev);
+ if (udev.ignore_device) {
+ dbg("device event will be ignored");
+ goto exit;
+ }
+ if (udev.name[0] == '\0') {
+ dbg("device node creation supressed");
+ goto run;
+ }