Messages in this thread | | | Date | Sat, 22 Jan 2011 19:46:53 -0800 | From | Greg KH <> | Subject | Re: [PATCH 1/2] USB: HCD: Add driver hooks for (un)?map_urb_for_dma |
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On Thu, Jan 20, 2011 at 01:41:54PM -0800, 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@nvidia.com>
I'd like to get an ACK from Alan before applying this one, and ideally also from David and Sarah as they know the HCD code also.
Anyone?
thanks,
greg k-h
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