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Date: Mon, 01 Oct 2012 17:57:22 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai] Qeustion about rtdm_event_timedwait
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To: Andrey Nechypurenko <andreynech@googlemail.com>
Cc: xenomai@xenomai.org

On 10/01/2012 05:51 PM, Andrey Nechypurenko wrote:
> driver's read() function is registered as *read_nrt*

That is the problem.

> real-time process. So does it imply that to make
> event_wait/event_signal to work, the "client" must also run Xenomai RT
> task?

Yes

> 
> In fact, in the documentation for rtdm_event_wait(), the following is mentioned:
> This service can be called from:
>  * Kernel-based task
>  * User-space task (RT)
> 
> I thought, that since I am in driver's read() function, the first
> statement "Kernel-based task" is what I am doing and it should be OK.

"Kernel-based task" means RTDM (or Xenomai) kernel based task.

-- 
					    Gilles.