USB device stack; Added getter method for terminal_connected;

Fork of USBDevice by mbed official

Example of use:

#include "mbed.h"
#include "USBSerial.h"

USBSerial  pc;
DigitalOut blue_led(P0_20);

int main() {
    blue_led = 1;
    while(!pc.getTerminal_connected()); //Wait for serial terminal to connect...
    while(1) {
        blue_led = 0;
        wait(0.2);
        blue_led = 1;
        wait(0.2);
    }
}
Revision:
31:5bf05f9b3c7b
Parent:
30:4408411999c8
--- a/USBDevice/USBHAL.h	Wed Aug 20 13:15:20 2014 +0100
+++ b/USBDevice/USBHAL.h	Thu Aug 21 15:00:37 2014 +0100
@@ -110,7 +110,7 @@
 
 #if defined(TARGET_LPC11UXX) || defined(TARGET_LPC11U6X) || defined(TARGET_LPC1347) || defined(TARGET_LPC1549)
         bool (USBHAL::*epCallback[10 - 2])(void);
-#elif defined(TARGET_STM32F4XX)
+#elif defined(TARGET_STM32F4)
         bool (USBHAL::*epCallback[8 - 2])(void);
 #else
         bool (USBHAL::*epCallback[32 - 2])(void);