From: Philippe Gerum <rpm@xenomai.org>
To: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] XDDP and inter-driver API.
Date: Tue, 10 Jul 2012 19:00:16 +0200 [thread overview]
Message-ID: <4FFC5FA0.2030807@xenomai.org> (raw)
In-Reply-To: <20120710162451.GD19565@csclub.uwaterloo.ca>
On 07/10/2012 06:24 PM, Lennart Sorensen wrote:
> On Tue, Jul 10, 2012 at 12:15:24PM -0400, Sunetra Sashi wrote:
>> Thanks for clarifying. I should have said ¨not possible using Xenomai
>> IPCs¨. Sorry about that.
>>
>> I am not trying to port legacy code. I am instead trying to establish a
>> communication pathway from voice applications in user land to some real
>> time xenomai code running within the kernel via a linux driver KM running
>> native linux. In our instance, it is necessary that the code executes in
>> the kernel space.
>
> Nothing is ever necesary. Sometimes it may be easier.
>
>> On a related note, if I create a simple xenomai kernel module running real
>> time code and signal events to it from linux kernel space (via the rt_event
>> API) and communicate information back via interrupts (assuming we manage
>> memory via shared buffers), would that considered to be a true
>> Linux-Xenomai switch?
>
> My understanding was that xenomai 3.x won't even allow kernel mode
> realtime anymore, only userspace, so unless you have no intension of
> ever going to future versions, you probably don't want to design your
> code that way.
>
> I must admit I haven't checked the details of that to see how device
> drivers for xenomai are supposed to be handled in 3.x.
>
Xenomai will allow real-time mode in kernel space, but only over RTDM tasks.
--
Philippe.
next prev parent reply other threads:[~2012-07-10 17:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-10 2:30 [Xenomai] XDDP and inter-driver API Sunetra Sashi
2012-07-10 8:40 ` Philippe Gerum
2012-07-10 9:03 ` Sunetra Sashi
2012-07-10 9:10 ` Philippe Gerum
2012-07-10 9:17 ` Sunetra Sashi
2012-07-10 9:36 ` Philippe Gerum
2012-07-10 11:23 ` Sunetra Sashi
2012-07-10 15:01 ` Philippe Gerum
2012-07-10 15:43 ` Sunetra Sashi
2012-07-10 15:57 ` Philippe Gerum
2012-07-10 16:15 ` Sunetra Sashi
2012-07-10 16:24 ` Lennart Sorensen
2012-07-10 17:00 ` Philippe Gerum [this message]
2012-07-10 17:09 ` Philippe Gerum
2012-07-10 17:20 ` Snmgmt
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