On Wed, 26 Jan 2011, Robert Morell wrote: > Provide optional hooks for the host controller driver to override the > default DMA mapping and unmapping routines. In general, these shouldn't > be necessary unless the host controller has special DMA requirements, > such as alignment contraints. If these are not specified, the > general usb_hcd_(un)?map_urb_for_dma functions will be used instead. > Also, pass the status to unmap_urb_for_dma so it can know whether the > DMA buffer has been overwritten. > > Finally, add a flag to be used by these implementations if they > allocated a temporary buffer so it can be freed properly when unmapping. > > Signed-off-by: Robert Morell <rmorell@xxxxxxxxxx> Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> -- 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
