[Xenomai] Linux - Xenomai Kernel Space Communication

[Xenomai] Linux - Xenomai Kernel Space Communication

[Sunetra Sashi]

Hi,

I have an Linux kernel module that runs in native linux environment that
needs to communicate (function calls/memory usage etc) with another kernel
module that runs in Xenomai space.

Does Xenomai offer mechanisms for such back and forth Linux - Xenomai
communication?

Thanks

Re: [Xenomai] Linux - Xenomai Kernel Space Communication

[Gilles Chanteperdrix]

On 06/28/2012 08:09 PM, Sunetra Sashi wrote:
> Hi,
> 
> I have an Linux kernel module that runs in native linux environment that
> needs to communicate (function calls/memory usage etc) with another kernel
> module that runs in Xenomai space.
> 
> Does Xenomai offer mechanisms for such back and forth Linux - Xenomai
> communication?

Yes.

-- 
                                                                Gilles.

Re: [Xenomai] Linux - Xenomai Kernel Space Communication

[Snmgmt]

Thanks. Could you please tell me what they are?


On Jun 28, 2012, at 2:37 PM, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:

> On 06/28/2012 08:09 PM, Sunetra Sashi wrote:
>> Hi,
>> 
>> I have an Linux kernel module that runs in native linux environment that
>> needs to communicate (function calls/memory usage etc) with another kernel
>> module that runs in Xenomai space.
>> 
>> Does Xenomai offer mechanisms for such back and forth Linux - Xenomai
>> communication?
> 
> Yes.
> 
> -- 
>                                                                Gilles.

Re: [Xenomai] Linux - Xenomai Kernel Space Communication

[Gilles Chanteperdrix]

On 06/28/2012 08:44 PM, Snmgmt wrote:
> Thanks. Could you please tell me what they are?

No. You do not need me to find them in the API documentation, provided
with xenomai sources as well as on the website.

-- 
                                                                Gilles.

Re: [Xenomai] Linux - Xenomai Kernel Space Communication

[Snmgmt]

Thank you, could someone else please point me to them?

My question to be more specific would be, are the real time IPC protocols applicable to inter kernel communication or are they meant only for user space communication between xenomai and Linux threads?

I read that rt_pipe api would be deprecated soon, is that true?

Thanks



On Jun 28, 2012, at 2:46 PM, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:

> On 06/28/2012 08:44 PM, Snmgmt wrote:
>> Thanks. Could you please tell me what they are?
> 
> No. You do not need me to find them in the API documentation, provided
> with xenomai sources as well as on the website.
> 
> -- 
>                                                                Gilles.


> 

Re: [Xenomai] Linux - Xenomai Kernel Space Communication

[Philippe Gerum]

On 06/28/2012 09:15 PM, Snmgmt wrote:
>
> Thank you, could someone else please point me to them?
>
> My question to be more specific would be, are the real time IPC protocols applicable to inter kernel communication

Yes, via the regular module-to-module RTDM API they expose.

  or are they meant only for user space communication between xenomai 
and Linux threads?
>
> I read that rt_pipe api would be deprecated soon, is that true?
>

Yes, for most part. The in-kernel API disappeared from the Xenomai 3 
code base already, what remains is a wrapper of the former user-space 
RT_PIPE API rebased over XDDP.

> Thanks
>
>
>
> On Jun 28, 2012, at 2:46 PM, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:
>
>> On 06/28/2012 08:44 PM, Snmgmt wrote:
>>> Thanks. Could you please tell me what they are?
>>
>> No. You do not need me to find them in the API documentation, provided
>> with xenomai sources as well as on the website.
>>
>> --
>>                                                                 Gilles.
>
>
>>
> _______________________________________________
> Xenomai mailing list
> Xenomai@xenomai.org
> http://www.xenomai.org/mailman/listinfo/xenomai
>


-- 
Philippe.

Re: [Xenomai] Linux - Xenomai Kernel Space Communication

[Philippe Gerum]

On 06/28/2012 09:15 PM, Snmgmt wrote:
>
> Thank you, could someone else please point me to them?
>

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

> My question to be more specific would be, are the real time IPC protocols applicable to inter kernel communication or are they meant only for user space communication between xenomai and Linux threads?
>
> I read that rt_pipe api would be deprecated soon, is that true?
>
> Thanks
>
>
>
> On Jun 28, 2012, at 2:46 PM, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:
>
>> On 06/28/2012 08:44 PM, Snmgmt wrote:
>>> Thanks. Could you please tell me what they are?
>>
>> No. You do not need me to find them in the API documentation, provided
>> with xenomai sources as well as on the website.
>>
>> --
>>                                                                 Gilles.
>
>
>>
> _______________________________________________
> Xenomai mailing list
> Xenomai@xenomai.org
> http://www.xenomai.org/mailman/listinfo/xenomai
>


-- 
Philippe.

Re: [Xenomai] Linux - Xenomai Kernel Space Communication

[Philippe Gerum]

On 06/28/2012 10:12 PM, Philippe Gerum wrote:
> On 06/28/2012 09:15 PM, Snmgmt wrote:
>>
>> Thank you, could someone else please point me to them?
>>
>
> http://www.xenomai.org/documentation/xenomai-2.6/html/api/index.html

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

>
>> My question to be more specific would be, are the real time IPC
>> protocols applicable to inter kernel communication or are they meant
>> only for user space communication between xenomai and Linux threads?
>>
>> I read that rt_pipe api would be deprecated soon, is that true?
>>
>> Thanks
>>
>>
>>
>> On Jun 28, 2012, at 2:46 PM, Gilles Chanteperdrix
>> <gilles.chanteperdrix@xenomai.org> wrote:
>>
>>> On 06/28/2012 08:44 PM, Snmgmt wrote:
>>>> Thanks. Could you please tell me what they are?
>>>
>>> No. You do not need me to find them in the API documentation, provided
>>> with xenomai sources as well as on the website.
>>>
>>> --
>>>                                                                 Gilles.
>>
>>
>>>
>> _______________________________________________
>> Xenomai mailing list
>> Xenomai@xenomai.org
>> http://www.xenomai.org/mailman/listinfo/xenomai
>>
>
>


-- 
Philippe.