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:
54:461d954eee6b
Parent:
49:bee5808e91e3
--- a/USBDevice/USBEndpoints_Maxim.h	Tue May 19 08:00:55 2015 +0100
+++ b/USBDevice/USBEndpoints_Maxim.h	Fri May 22 08:45:47 2015 +0100
@@ -85,6 +85,10 @@
 #define EPINT_IN    (EP4IN)
 #define EPINT_OUT_callback    EP3_OUT_callback
 #define EPINT_IN_callback     EP4_IN_callback
+/* Isochronous endpoints */
+/* NOT SUPPORTED - use invalid endpoint number to prevent built errors */
+#define EPISO_OUT   (EP0OUT)
+#define EPISO_IN    (EP0IN)
 
 #define MAX_PACKET_SIZE_EPBULK  (64)
 #define MAX_PACKET_SIZE_EPINT   (64)