Messages in this thread | | | Date | Wed, 7 Mar 2001 04:10:31 -0500 (EST) | From | Alexander Viro <> |
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On Wed, 7 Mar 2001, Abramo Bagnara wrote:
> Alexander Viro wrote: > > > > On Wed, 7 Mar 2001, Jeremy Elson wrote: > > > > > Right now, my code looks something like this: (it might make more > > > sense if you know that I've written a framework for writing user-space > > > device drivers... I'm going to be releasing it soon, hopefully after I > > > resolve this performance problem. Or maybe before, if it's hard.) > > > > Ugh. Why not make that a named pipe and use zerocopy stuff for pipes? > > I.e. why bother with making it look like a character device rather than > > a FIFO? > > What about ioctl? Device drivers sometimes need it ;-)
No, they don't. OOB data is equivalent to data on parallel channel.
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