> discussing non-PCI OHCI patches with me have reported > DMA limitations like "must be in first MByte". (I think that > was an ARM CPU, not MIPS or PPC.)
StrongARM SA1100 > If some code wants to take vmalloc memory and do I/O with it, > the solution gets complicated. In principle one must pin pages > and pass their "real" addreses to an I/O layer. That gets into > the VM and block I/O layers ... less stable than USB! :) vmalloc memory pages might also need copying before the DMA _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
