Messages in this thread | | | Date | Wed, 6 Jan 2016 16:22:12 +0100 | From | Peter Stuge <> | Subject | Re: [PATCH] Add support for usbfs zerocopy. |
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Steinar H. Gunderson wrote: > > Our interface for zero copy reads/writes is O_DIRECT, and that requires > > not special memory allocation, just proper alignment. > > But that assumes you are using I/O using read()/write(). There's no way you > can shoehorn USB isochronous reads into the read() interface, O_DIRECT or not.
How about aio?
//Peter
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