Re: Async I/O on RT fifos

[yodaiken@fsmlabs.com]

Well, you can do a "select" right now for the same effect, but O_ASYNC
should be pretty easy. I have not looked at it recently, but I think 
it could be done simply.
Send us a patch - or you can pay us to add it right away - or you can wait
and we'll certainly add it in the new fifos code which is due for V3.1

On Thu, Nov 09, 2000 at 11:14:53AM +0100, Arnold Radtke wrote:
> We need asynchronious I/O of RT fifos. The RT kernel task writes data to
> RT fifo and if data are available for Linux user mode process, we want
> to have a SIGIO. We open RT fifo device with O_ASYNC or do fcntl with
> O_ASYNC. I had a look to the source of  rtl_fifo.c and I think this
> feature is not yet implemented. Is there a easy patch to change the code
> for async I/O ? or better it's possible to implement it generally?
> 
> Thanks.
> 
> Arnold

-- 
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Victor Yodaiken 
Finite State Machine Labs: The RTLinux Company.
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