uhd: added new calls to streamer object + support work

* The transmit streamer gives access to the async msg queue.
* The receive streamer gives access to the issue stream cmd.
* Supporting usrp implementation files updated.
* Example applications updated to use this API.

1 files changed, 1 insertions, 1 deletions

diff --git a/host/examples/txrx_loopback_to_file.cpp b/host/examples/txrx_loopback_to_file.cpp
index 9dc348da8..ef119b689 100644
--- a/host/examples/txrx_loopback_to_file.cpp
+++ b/host/examples/txrx_loopback_to_file.cpp
@@ -151,7 +151,7 @@ template<typename samp_type> void recv_to_file(
     stream_cmd.num_samps = num_requested_samples;
     stream_cmd.stream_now = false;
     stream_cmd.time_spec = uhd::time_spec_t(settling_time);
-    usrp->issue_stream_cmd(stream_cmd);
+    rx_stream->issue_stream_cmd(stream_cmd);
 
     while(not stop_signal_called and (num_requested_samples != num_total_samps or num_requested_samples == 0)){
         size_t num_rx_samps = rx_stream->recv(&buff.front(), buff.size(), md, timeout);