[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [rtl] Async I/O on RT fifos

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.

Just in case you'll find nothing better, note that the portable fifos
found at:

http://www.aero.polimi.it/projects/rtai/ 

should have what you're looking for, even if it has not been used very
much.

Ciao, Paolo.