diff --git a/INSTALL.md b/INSTALL.md
index fd304f8..4504da0 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -17,6 +17,7 @@ sudo apt-get install libopus-dev
 sudo apt-get install libeigen3-dev
 sudo apt-get install portaudio19-dev
 sudo apt-get install librtaudio-dev
+sudo apt-get install libhidapi-dev libqt5gamepad5-dev
 ~~~
 Now you need to install qcustomplot. There are two versions that are commonly found in linux distros: 1.3 and 2.0. Either will work fine. If you are not sure which version your linux install comes with, simply run both commands. One will work and the other will fail, and that's fine!
 
@@ -127,4 +128,12 @@ When done, create a build area, clone the repo, build and install:
 
 wfview is now installed in /usr/local/bin
 
+# How to configure your RC-28 knob under Linux
+
+To use RC-28 knob you need to add udev rules, please execute as root:
+
+~~~
+echo 'SUBSYSTEM=="usb", ATTRS{idVendor}=="0c26", ATTRS{idProduct}=="001e", MODE="0666"' >> /etc/udev/rules.d/99-ham-wfview.rules
+udevadm control --reload-rules && udevadm trigger
+~~~
 ---
diff --git a/usbcontroller.cpp b/usbcontroller.cpp
index d209f97..c304a73 100644
--- a/usbcontroller.cpp
+++ b/usbcontroller.cpp
@@ -187,7 +187,7 @@ void usbController::run()
     if (!handle) {
         handle = hid_open(0x0b33, 0x0030, NULL);
         if (!handle) {
-            handle = hid_open(0x0C26, 0x001E, NULL);
+            handle = hid_open(0x0c26, 0x001e, NULL);
             if (!handle) {
                 usbDevice = NONE;
             }
@@ -243,6 +243,7 @@ void usbController::run()
 void usbController::runTimer()
 {
     int res=1;
+    int changeVFO=0;
     while (res > 0) {
         QByteArray data(HIDDATALENGTH, 0x0);
         res = hid_read(handle, (unsigned char*)data.data(), HIDDATALENGTH);
@@ -331,7 +332,7 @@ void usbController::runTimer()
             shutpos = tempShutpos;
 
         }
-        else if (res == 64 && usbDevice == RC28)
+        else if (res == 32 && usbDevice == RC28)
         {
             // This is a response from the Icom RC28
             data.resize(8); // Might as well get rid of the unused data.
@@ -342,41 +343,62 @@ void usbController::runTimer()
 
             if (((unsigned char)data[5] == 0x06) && ((unsigned char)lastData[5] != 0x06))
             {
+		// TRANSMIT key down only (no other keys down)
                 //emit button(true, 6);
+                qDebug(logUsbControl()) << "PTT key down";
             }
             else if (((unsigned char)data[5] != 0x06) && ((unsigned char)lastData[5] == 0x06))
             {
+		// TRANSMIT key up only (no other keys down)
                 //emit button(false, 6);
+                qDebug(logUsbControl()) << "PTT key up";
             }
             else if (((unsigned char)data[5] == 0x03) && ((unsigned char)lastData[5] != 0x03))
             {
+		// F-2 key up only (no other keys down)
                 //emit button(true, 7);
+                qDebug(logUsbControl()) << "F-2 key up";
             }
             else if (((unsigned char)data[5] != 0x03) && ((unsigned char)lastData[5] == 0x03))
             {
+		// F-2 key down only (no other keys down)
                 //emit button(false, 7);
+                qDebug(logUsbControl()) << "F-2 key down";
             }
-            else if (((unsigned char)data[5] == 0x7d) && ((unsigned char)lastData[5] != 0x7d))
+            else if (((unsigned char)data[5] == 0x05) && ((unsigned char)lastData[5] != 0x05))
             {
+		// F-1 key up only (no other keys down)
                 //emit button(true, 5);
+                qDebug(logUsbControl()) << "F-1 key up";
             }
-            else if (((unsigned char)data[5] != 0x7d) && ((unsigned char)lastData[5] == 0x7d))
+            else if (((unsigned char)data[5] != 0x05) && ((unsigned char)lastData[5] == 0x05))
             {
+		// F-1 key down only (no other keys down)
                 //emit button(false, 5);
+                qDebug(logUsbControl()) << "F-1 key down";
             }
 
             if ((unsigned char)data[5] == 0x07)
             {
+		// TODO: change of frequency should be multiplied by data[1] or data[4]
+		// data[1] max value depend on rotation speed I was able to detect was 150 decimal
+		// data[4] can have 3 values 0 1 or 2 it depends on rotation speed
+                if ((unsigned char)data[4] > 0x00) {
+		    changeVFO = data[4] * data[1];
+		} else {
+		    changeVFO = data[1];
+		}
                 if ((unsigned char)data[3] == 0x01)
                 {
-                    //qDebug(logUsbControl()) << "Frequency UP";
-                    jogCounter++;
-                    //emit jogPlus();
+                    qDebug(logUsbControl()) << "Frequency UP";
+                    emit jogPlus();
+                    jogCounter = jogCounter + changeVFO;
                 }
                 else if ((unsigned char)data[3] == 0x02)
                 {
-                    //qDebug(logUsbControl()) << "Frequency DOWN";
+                    qDebug(logUsbControl()) << "Frequency DOWN";
                     emit jogMinus();
+                    jogCounter = jogCounter - changeVFO;
                     jogCounter--;
                 }
             }
@@ -474,4 +496,4 @@ void usbController::buttonState(QString name, double val)
         }
     }
     */
-}
\ No newline at end of file
+}