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:
33:bf48dc2a4240
Parent:
24:868cbfe611a7
--- a/USBHost/USBEndpoint.cpp	Fri Oct 16 11:13:01 2015 +0000
+++ b/USBHost/USBEndpoint.cpp	Mon Apr 18 10:01:46 2016 +0000
@@ -140,7 +140,7 @@
 
     //Now add this free TD at this end of the queue
     state = USB_TYPE_PROCESSING;
-    td_current->nextTD = td_next;
+    td_current->nextTD = (hcTd*)td_next;
     hced->tailTD = td_next;
 }
 
@@ -158,5 +158,5 @@
 void USBEndpoint::queueEndpoint(USBEndpoint * ed)
 {
     nextEp = ed;
-    hced->nextED = (ed == NULL) ? 0 : ed->getHCED();
+    hced->nextED = (ed == NULL) ? 0 : (hcEd*)(ed->getHCED());
 }