sf64pcr_hw_read
u_int32_t sf64pcr_hw_read(bus_space_tag_t, bus_space_handle_t, bus_size_t);
radio->tea.read = sf64pcr_hw_read;
freq = tea5757_decode_freq(sf64pcr_hw_read(radio->tea.iot,
buf = sf64pcr_hw_read(radio->tea.iot, radio->tea.ioh,