From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Andrey Nechypurenko <andreynech@googlemail.com>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] Qeustion about rtdm_event_timedwait
Date: Mon, 01 Oct 2012 17:57:22 +0200 [thread overview]
Message-ID: <5069BD62.5030706@xenomai.org> (raw)
In-Reply-To: <CAOiXNkBzov-hrEOECeqPNgMw-peUmMcx55N8CcL3Ue66H-xwMA@mail.gmail.com>
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.
next prev parent reply other threads:[~2012-10-01 15:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-01 15:51 [Xenomai] Qeustion about rtdm_event_timedwait Andrey Nechypurenko
2012-10-01 15:57 ` Gilles Chanteperdrix [this message]
2012-10-01 16:01 ` Andrey Nechypurenko
2012-10-01 16:05 ` Gilles Chanteperdrix
2012-10-01 16:10 ` Andrey Nechypurenko
2012-10-01 16:13 ` Andrey Nechypurenko
2012-10-01 16:20 ` Gilles Chanteperdrix
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