On Mon, 2 Feb 2009, Oliver Neukum wrote: > Am Monday 02 February 2009 20:49:24 schrieb Alan Stern: > > Ah, but you're forgetting the possibile cases in which the controller > > doesn't support DMA. That is an independent question from whether the > > HCD supports scatterlists. > > How? If you don't do DMA, you'll need to do PIO and the CPU can > certainly do scatter/gather. Of course. But I'm talking about whether the HCD can handle URBs that contain a scatterlist. At the moment, none of them can. Alan Stern -- 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