int libevdev_kernel_set_led_values(struct libevdev *dev, ...);
- libevdev_log_func_t
void libevdev_set_log_function(libevdev_log_func_t logfunc, void *data);
- libevdev_device_log_func_t
void libevdev_set_device_log_function(struct libevdev *dev, libevdev_device_log_func_t logfunc, enum libevdev_log_priority priority, void *data);