Hello, Just to say that i've got usb audio working between my "old" A500 from acer (usb host full size port) and my hifimediy dac (sabre chipset and same usb chipset as in odac) with this rom jb 4.2.1 :  http://forum.xda-developers.com/showthread.php?t=2049874   I just plug my dac during...