usrp: use different priority policies for gain group (rx vs tx)

1 files changed, 15 insertions, 1 deletions

diff --git a/host/include/uhd/usrp/misc_utils.hpp b/host/include/uhd/usrp/misc_utils.hpp
index 14db80162..2af9f5b40 100644
--- a/host/include/uhd/usrp/misc_utils.hpp
+++ b/host/include/uhd/usrp/misc_utils.hpp
@@ -26,9 +26,23 @@
 namespace uhd{ namespace usrp{
 
     /*!
+     * Different policies for gain group prioritization.
+     */
+    enum gain_group_policy_t{
+        GAIN_GROUP_POLICY_RX = 'R',
+        GAIN_GROUP_POLICY_TX = 'T'
+    };
+
+    /*!
      * Create a gain group that represents the subdevice and its codec.
+     * \param subdev the object with subdevice properties
+     * \param codec the object with codec properties
+     * \param gain_group_policy the policy to use
      */
-    UHD_API gain_group::sptr make_gain_group(wax::obj subdev, wax::obj codec);
+    UHD_API gain_group::sptr make_gain_group(
+        wax::obj subdev, wax::obj codec,
+        gain_group_policy_t gain_group_policy
+    );
 
     /*!
      * Verify the rx subdevice specification.