Constant riot_sys::netopt_t_NETOPT_PRELOADING

pub const netopt_t_NETOPT_PRELOADING: netopt_t = 19;

@brief (@ref netopt_enable_t) frame preloading

Preload frame data using gnrc_netdev_driver_t::send_data() or gnrc_netapi_send(), trigger sending by setting state to @ref NETOPT_STATE_TX