Re: [PATCH 1/2] USB: Allow HCDs to specifiy their DMA alignment requirements

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On 01/09/2010 09:18, Oliver Neukum wrote:
> 
> 1. Drivers mapping their own buffers.
> The problem here is that I am not sure we have a valid pointer
> which can support a copy to a bounce buffer.

I don't see why drivers need to map their own buffers or use coherent
allocations. Should this ability be removed?   It doesn't play nice with
usbmon or drivers needing to do PIO either.

David
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