lkml.org 
[lkml]   [2016]   [Jan]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Add support for usbfs zerocopy.
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


\
 
 \ /
  Last update: 2016-01-06 17:21    [W:0.235 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site