I added the Isochronous to USBHost library. The Isochronous code based on the following. http://developer.mbed.org/users/va009039/code/USBHostC270_example/

Dependencies:   FATFileSystem mbed-rtos

Fork of USBHost_AddIso by GR-PEACH_producer_meeting

Revision:
31:271fcfd7cfc2
Parent:
30:2851a9b2bbfb
Child:
33:bf48dc2a4240
--- a/USBHost/USBHost.cpp	Wed Apr 01 05:36:16 2015 +0000
+++ b/USBHost/USBHost.cpp	Wed Sep 30 05:52:33 2015 +0000
@@ -397,32 +397,6 @@
     } else {
         return;
     }
-#if(1) /* Isochronous */
-    if (addr != 0) {
-        uint8_t state;
-        volatile HCTD* tdList = NULL;
-
-        //First we must reverse the list order and dequeue each TD
-        do {
-            volatile HCTD* td = (volatile HCTD*)addr;
-            addr = (uint32_t)td->nextTD; //Dequeue from physical list
-            td->nextTD = tdList; //Enqueue into reversed list
-            tdList = td;
-        } while(addr);
-
-        while(tdList != NULL) {
-            volatile HCTD* td = tdList;
-            tdList = (volatile HCTD*)td->nextTD; //Dequeue element now as it could be modified below
-            if (!isTD((uint8_t*)td)) { // ITD?
-                HCITD* itd = (HCITD*)td;
-                IsochronousEp* ep = itd->ep;
-                if (ep) {
-                    ep->irqWdhHandler(itd);
-                }
-            }
-        }
-    }
-#endif
 
     message_t * usb_msg = mail_usb_event.alloc();
     usb_msg->event_id = DEVICE_DISCONNECTED_EVENT;