ad9361: Minor clarifications on req_rate and baseband_bw

1 files changed, 9 insertions, 2 deletions

diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.h b/host/lib/usrp/common/ad9361_driver/ad9361_device.h
index bd4ad368f..a42c5ac9a 100644
--- a/host/lib/usrp/common/ad9361_driver/ad9361_device.h
+++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.h
@@ -112,8 +112,15 @@ private:    //Members
     ad9361_io::sptr     _io_iface;
     //Intermediate state
     double              _rx_freq, _tx_freq, _req_rx_freq, _req_tx_freq;
-    double              _baseband_bw, _bbpll_freq, _adcclock_freq;
-    double              _req_clock_rate, _req_coreclk;
+    //! Current baseband sampling rate (this is the actual rate the device is
+    //  is running at)
+    double              _baseband_bw;
+    double              _bbpll_freq, _adcclock_freq;
+    //! This was the last clock rate value that was requested.
+    //  It is cached so we don't need to re-set the clock rate
+    //  if another call to set_clock_rate() actually has the same value.
+    double              _req_clock_rate;
+    double              _req_coreclk;
     boost::uint16_t     _rx_bbf_tunediv;
     boost::uint8_t      _curr_gain_table;
     double              _rx1_gain, _rx2_gain, _tx1_gain, _tx2_gain;