Hi Daniel,
This is a bug in the fifo code, please go to the errata page at:
http://www.lineoisg.com/products/ert3/install/appa.html
Where you can download an update to the fifos and read the install
instructions.
Regards, Stuart
daniel sheltraw wrote:
>
> Hello RTAI world
>
> I just upgraded to RTAI 1.3 (Linux 2.2 16) using the Embedix CD and
> everthing seems to be working fine as far as compling my modules goes.
> I am however having a FIFO problem. Code that was previously working
> under RTAI 0.7 (Linux 2.2.10) is not working after my upgrade.
> Communication between kernel-space using rtf_put() and user-space
> using select() is no longer working properly. The select() function
> used in user-space remains blocked despite writing to the
> corresponding FIFO in kernel-space with rtf_put(). I should point out
> that communication in the opposite direction appears to work fine in
> that I am able to write to a FIFO from user-space and propely activate
> a handler in kernel-space.
>
> Question: Does anyone know what may have changed between these two
> RTAI versions
> (or versions of Linux) that would be producing this
> problem? Any suggestions
> on how to narrow down what the problem is?
>
> Thanks again and have a great Thanksgiving,
> Daniel
>
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