From mboxrd@z Thu Jan  1 00:00:00 1970
Sender: Michael Welling <mwelling79@gmail.com>
Date: Tue, 16 Feb 2016 11:25:01 -0600
From: Michael Welling <mwelling@ieee.org>
Message-ID: <20160216172501.GA9806@deathstar>
References: <20160215174121.GA10070@deathstar> <56C2B626.8010804@sigmatek.at>
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Subject: Re: [Xenomai] RT serial cross-link failure
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To: Wolfgang Netbal <wolfgang.netbal@sigmatek.at>
Cc: xenomai-bounces@xenomai.org, xenomai@xenomai.org

On Tue, Feb 16, 2016 at 06:39:50AM +0100, Wolfgang Netbal wrote:
> 
> 
> Am 2016-02-15 um 18:41 schrieb Michael Welling:
> >I took the time to update the IMX UART driver such that it registers with the 3.18 kernel.
> >
> >The driver appears to register correctly and the /dev/rtdm/rtser* nodes appear.
> >
> >When I run the cross-link demo the system hangs after an error in read_task.
> >
> >Here is the output that I get:
> >main : write-file opened
> >main : write-config written
> >main : read-file opened
> >main : read-config written
> >main : write-task created
> >main : read-task created
> >main : starting write-task
> >main : strating read-task
> >  Nr |   write-irq    |    irq->read    |   write->read   |
> >----------------------------------------------------------
> >read_task: error on RTSER_RTIOC_WAIT_EVENT, Operation no permitted
> >main : /dev/rtdm/rtser1 (read) -> closed
> >read_task: exit
> >
> >Any ideas why this would happen?
> >
> >I can provide the patch for the driver if necessary. I tried to keep the changes to a minimal.
> Dear Michael,
> 
> I added a patch on December where I extended the IMX UART driver to support
> open firmware, maybe my patch can help you to find your issue.
> I posted the patch in the mailing list, you can find it here
> https://xenomai.org/pipermail/xenomai/2015-December/035655.html

This patch does not seem to apply to the driver in the xenomai-3
repository.

Is there another patch that adds the devicetree stuff?