extern int udev_add_device(char *path, char *subsystem);
extern int udev_remove_device(char *path, char *subsystem);
extern void udev_init_config(void);
extern int udev_add_device(char *path, char *subsystem);
extern int udev_remove_device(char *path, char *subsystem);
extern void udev_init_config(void);