pub unsafe extern "C" fn bladerf_init_stream(
stream: *mut *mut bladerf_stream,
dev: *mut bladerf,
callback: bladerf_stream_cb,
buffers: *mut *mut *mut c_void,
num_buffers: usize,
format: bladerf_format,
samples_per_buffer: usize,
num_transfers: usize,
user_data: *mut c_void,
) -> c_int