Revert "Update LED.GMD"

This reverts commit 4689ea3784

LED.GMD

@@ -0,0 +1,79 @@
+All LEDs are in fact 2 LED (one red and one green) and seems to be connected to separated pins from the controller, or at least can be addressed by the controller following this addresses design:
+
+```
+LED 1 (r) = 1  
+LED 1 (g) = 2
+```
+```
+LED 2 (r) = 3  
+LED 2 (g) = 4
+```
+```
+LED 3 (r) = 5  
+LED 3 (g) = 6
+```
+
+There is no zero LED    
+
+the commands to address the LED status is 0x1B 0x4C _STATUS_  
+
+_STATUS_ byte is divided in two parts:  
+ 4 high bits are used to define the LED id,  
+ 1 low bit is used to define the status (on/off)  
+
+So Led's can controlled with the following (pseudo-c) code:
+```
+#define     LED_STATUS_ON               0x01
+#define     LED_STATUS_OFF              0x00
+
+#define     LED_1_RED                   0x10
+#define     LED_1_GREEN                 0x20
+#define     LED_2_RED                   0x30
+#define     LED_2_GREEN                 0x40
+#define     LED_3_RED                   0x50
+#define     LED_3_GREEN                 0x60
+
+void SetLed(unsigned char ledid,unsigned char status)
+{
+    unsigned char cmd[3];
+
+    cmd[0] = "\x1b";
+    cmd[1] = "\x4c";
+    cmd[2] = (unsigned char) (ledid + status);
+
+    SerialPtr_writebuffer(cmd,3);
+}
+
+
+SetLed(LED_1_GREEN, LED_STATUS_ON);
+```
+
+Notes:  
+
+In the CP's drivers, the LED were addressed in a funny ways:
+
+```
+int _SetLedState(int led,int state)
+{
+  char led_id;
+  int ret;
+  char cmdRed [3];
+  char cmdGreen [3];
+  
+  ret = -1;
+  if (led - 1U < 3) 
+  {
+    led_id = (char)led * '\x02';
+    cmdRed[2] = (led_id + -1) * '\x10' | (byte)state & 1;
+    cmdGreen[2] = (led_id + -2) * '\x10' | (byte)((uint)state >> 1) & 1;
+    cmdGreen[0] = '\x1b';
+    cmdGreen[1] = 'L';
+    cmdRed[0] = '\x1b';
+    cmdRed[1] = 'L';
+    SendCommand(fd,cmdGreen,3);
+    SendCommand(fd,cmdRed,3);
+    ret = 0;
+  }
+  return ret;
+}
+```