uhd

    ctrl_data_t read(boost::uint32_t addr, size_t len);

    ~b100_ctrl_impl(void) {

        viking_marauders.interrupt_all();

        viking_marauders.join_all();

    }

    bounded_buffer<ctrl_data_t> sync_ctrl_fifo;

    bounded_buffer<async_metadata_t> async_msg_fifo;

    boost::thread_group viking_marauders;

    uhd::transport::usb_zero_copy::sptr _ctrl_transport;

    boost::uint8_t _seq;

 * wait for a control operation to finish before starting another one.

 **********************************************************************/

void b100_ctrl_impl::viking_marauder_loop(boost::barrier &spawn_barrier) {

    spawn_barrier.wait();

    set_thread_priority_safe();

        managed_recv_buffer::sptr rbuf = _ctrl_transport->get_recv_buff();

        if(!rbuf.get()) continue; //that's ok, there are plenty of villages to pillage!

        const boost::uint16_t *pkt_buf = rbuf->cast<const boost::uint16_t *>();