Steinar H. Gunderson wrote: > > Our interface for zero copy reads/writes is O_DIRECT, and that requires > > not special memory allocation, just proper alignment. > > But that assumes you are using I/O using read()/write(). There's no way you > can shoehorn USB isochronous reads into the read() interface, O_DIRECT or not. How about aio? //Peter -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html