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Date: Wed, 19 Dec 2012 11:07:52 +0100
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Xenomai] RTDM - Dynamic linking of device
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To: alex alex <duch.alexandre@gmail.com>
Cc: Xenomai <xenomai@xenomai.org>

On 12/19/2012 10:39 AM, alex alex wrote:
> Infact I thought "rtdm_dev_register" worked exclusively in the _init
> function as indicated by the documentation. Following your advice I have
> tested  "rtdm_dev_register" in another function of my RTDM driver (ioctl)
> and it works well.
>
> I think you might change the doc of rtdm_dev_register to :
>
> This service can be called from:
>
>     - Kernel module initialization/cleanup code
>     - Kernel-based task
>
> Same for rtdm_dev_unregister
>

Nope. Kernel-based task in the context of Xenomai means a primary mode 
context over a lightweight Xenomai task, which is not what you want. 
Kernel module init/cleanup code implies secondary mode, this is the gist 
of the matter. This may be made clearer in the doc though.

> Alex.
> 2012/12/18 Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
>
>> On 12/18/2012 03:38 PM, alex alex wrote:
>>
>>> Thanks for your answer, I have corrected the example program.
>>>
>>> What I would like to do is add x devices after that the module be loaded
>>> and without naming these devices statically in the module, so am I forced
>>> to call x times rtdm_dev_register with x declarations of the rtdm_device
>>> structure in test.c?
>>> If there is an other way, please tell me what it is.
>>>
>>
>> What about creating a first static device with an ioctl allowing to create
>> other devices?
>>
>> --
>>                                              Gilles.
>>
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-- 
Philippe.