[Xenomai-core] realtime pipes

2012-01-15 Thread Jan-Erik Lange 

Hello,
 
it is possible to access a real-time pipe /dev/rtpx within the kernel space of 
Linux? Since there is no open function? 
 
Is it therefore possible to communicate between the Xenomai Kernel space and 
the Linux Kernel space?
 
Best regards
 
Jan   ___
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Re: [Xenomai-core] realtime pipes

2012-01-15 Thread Gilles Chanteperdrix 
On 01/15/2012 01:36 PM, Jan-Erik Lange wrote:
 
 Hello,
 
 it is possible to access a real-time pipe /dev/rtpx within the kernel
 space of Linux? Since there is no open function?

Real-time pipes are deprecated.

 
 Is it therefore possible to communicate between the Xenomai Kernel
 space and the Linux Kernel space?

As mentioned several time, using anything else in kernel-space than the
RTDM API is deprecated. If you are interested in the services the RTDM
api offers, see:

http://www.xenomai.org/documentation/xenomai-2.6/html/api/group__driverapi.html

For instance, you can see a section named non-real-time signalling
services, which probably answers your question.

-- 
Gilles.

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[Xenomai-core] FW: realtime pipes

2012-01-15 Thread Jan-Erik Lange 


 



From: jan0...@hotmail.de
To: gilles.chanteperd...@xenomai.org
Subject: RE: [Xenomai-core] realtime pipes
Date: Sun, 15 Jan 2012 19:38:01 +0100






 


 Date: Sun, 15 Jan 2012 18:37:23 +0100
 From: gilles.chanteperd...@xenomai.org
 To: jan0...@hotmail.de
 CC: xenomai-core@gna.org
 Subject: Re: [Xenomai-core] realtime pipes
 
 On 01/15/2012 01:36 PM, Jan-Erik Lange wrote:
  
  Hello,
  
  it is possible to access a real-time pipe /dev/rtpx within the kernel
  space of Linux? Since there is no open function?
 
 Real-time pipes are deprecated.
 
 
 
Are realtime pipes deprecated at all or only in kernel space?
 And why is the documentation so obsolete? I didn't heard this information 
since yet..
 

  
  Is it therefore possible to communicate between the Xenomai Kernel
  space and the Linux Kernel space?
 
 As mentioned several time, using anything else in kernel-space than the
 RTDM API is deprecated. If you are interested in the services the RTDM
 api offers, see:
 
 http://www.xenomai.org/documentation/xenomai-2.6/html/api/group__driverapi.html
 
 For instance, you can see a section named non-real-time signalling
 services, which probably answers your question.
 
 -- 
 Gilles.
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