[RFC PATCH v2 8/9] USB: add HCD_NO_COHERENT_MEM host controller driver flag
Alan Stern
stern at rowland.harvard.edu
Wed Mar 3 04:43:33 EST 2010
On Tue, 2 Mar 2010, Albert Herranz wrote:
> > Currently "this URB doesn't require PIO" is always true, but in the
> > future it won't be.
> >
>
> Can this be currently tested?
Not yet, but soon. You can follow the gory details in this email
thread:
http://marc.info/?l=linux-usb&m=126477569707174&w=2
See especially this email:
http://marc.info/?l=linux-usb&m=126630714002200&w=2
> Should I make provisions for this check now too?
Don't worry about it. If you structure the code as I described, it
will be easy to insert the check later on.
Alan Stern
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