title: What is EXPERT in kernel menuconfig
body: <p>Im trying to install a module 'eGalax, eTurboTouch CT-410/510/700 device support' and its not showing up in my kernel config menu, when I search for it is listed, I suspect it has something to do with the EXPERT option below, how do I enable this?</p>
  
  <pre><code>     │ Symbol: TOUCHSCREEN_USB_EGALAX_REVERSE [=n]                                                                                                                   │  
       │ Type  : boolean                                                                                                                                        │  
       │ Prompt: eGalax Special reverse MSB / LSB Packet                                                                                                        │  
       │   Defined at drivers/input/touchscreen/Kconfig:553                                                                                                     │  
       │   Depends on: !S390 &amp;&amp; INPUT [=y] &amp;&amp; INPUT_TOUCHSCREEN [=y] &amp;&amp; TOUCHSCREEN_USB_EGALAX [=n] &amp;&amp; EXPERT                                                   │  
       │   Location:                                                                                                                                            │  
       │     -&gt; Device Drivers                                                                                                                                  │  
       │       -&gt; Input device support                                                                                                                          │  
       │         -&gt; Generic input layer (needed for keyboard, mouse, ...) (INPUT [=y])                                                                          │  
       │           -&gt; Touchscreens (INPUT_TOUCHSCREEN [=y])                                                                                                     │  
       │             -&gt; eGalax, eTurboTouch CT-410/510/700 device support (TOUCHSCREEN_USB_EGALAX [=n])  
  </code></pre>