Richard Cochran wrote:
> I am trying to write a simple driver using the RTDM. I have based my
> driver on the examples at http://www.captain.at and at
> http://stud3.tuwien.ac.at/~e0226686/xenomai/source_code.
> 
> The call to rt_dev_open() returns -1 (Operation not permitted).
> 
> The program is running as root, and I am able to run the 'latency'
> test program.
> 
> What am I doing wrong?

Maybe you only defined the open_rt callback for your driver and are
trying to open the driver from a non realt-time thread ?

-- 
                                                 Gilles Chanteperdrix

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