diff --git a/qpulse.cpp b/qpulse.cpp
index 5739d29..9e199f4 100644
--- a/qpulse.cpp
+++ b/qpulse.cpp
@@ -37,6 +37,7 @@ bool QPulse::RequestServerInfo()
     }
 
     pa_operation_unref(o);
+    return true;
 }
 
 bool QPulse::RequestCardInfo()
@@ -49,6 +50,18 @@ bool QPulse::RequestCardInfo()
     }
 
     pa_operation_unref(o);
+    return true;
+}
+
+bool QPulse::SetCardProfile(int32_t card_index, const char* profile_name)
+{
+    pa_operation* o = pa_context_set_card_profile_by_index(c, card_index, profile_name, &QPulse::onSetCardProfileCompleteSt, this);
+    if (! o) {
+        return false;
+    }
+
+    pa_operation_unref(o);
+    return true;
 }
 
 void QPulse::onGotCardInfoListSt(pa_context*, const pa_card_info *i, int eol, void *userdata)
@@ -74,3 +87,11 @@ void QPulse::onConnectionStateChangedSt(pa_context*, void *userdata)
 
     emit qp->ConnectionStateChanged();
 }
+
+void QPulse::onSetCardProfileCompleteSt(pa_context*, int success, void *userdata)
+{
+    QPulse* qp = static_cast<QPulse*>(userdata);
+    //ThreadedMainLoopLock lock(qp->ml);
+
+    emit qp->SetCardProfileOperationCompleted(success);
+}
diff --git a/qpulse.h b/qpulse.h
index 0974036..c3aafcd 100644
--- a/qpulse.h
+++ b/qpulse.h
@@ -15,11 +15,13 @@ public:
 
     bool RequestServerInfo();
     bool RequestCardInfo();
+    bool SetCardProfile(int32_t card_index, const char* profile_name);
 
 signals:
     void ConnectionStateChanged();
     void GotServerInfo(const pa_server_info& i);
     void GotCardInfoList(const pa_card_info& i, int eol);
+    void SetCardProfileOperationCompleted(int success);
 
 public slots:
 
@@ -31,6 +33,7 @@ private:
     static void onConnectionStateChangedSt(pa_context *c, void *userdata);
     static void onGotServerInfoSt(pa_context *c, const pa_server_info *i, void *userdata);
     static void onGotCardInfoListSt(pa_context *c, const pa_card_info *i, int eol, void *userdata);
+    static void onSetCardProfileCompleteSt(pa_context *c, int success, void *userdata);
 
 };