Multiple Isochronous End Points

[h5n1xp]

Hi all, I'm using Phil Schatzmann's fork to send audio data over the USB, and it works really well.

But I have hit problem that the maximum packet size per isochronous end point is 1023bytes, this realistically supports a maximum of four 16bit audio channels.

Reading through the USB 1.1 spec, I didn't see anywhere written that a USB device should be limited a single Isochronous End Point. But I can't figure out how to create a second End Point, and guidance would be great!

Many thanks