## These function need to implemented in evdev-rs
* `int libevdev_kernel_set_led_values(struct libevdev *dev, ...);`
## We need to define this functions types and the corresponding functions
* 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);`
## Add Documentation