Re: [PATCH v2 1/2] USB: Add driver hooks for (un)?map_urb_for_dma

[Greg KH]

On Fri, Dec 17, 2010 at 05:49:30PM -0800, Robert Morell wrote:
> These are useful in case your device has quirks involving what memory
> is and is not DMAable.

What "device"?  Please be a whole lot more descriptive here both in the
changelog commit, and in the patch below in the comments for the hooks,
exactly what these hooks are for, who should use them, and why.

thanks,

greg k-h
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