From mboxrd@z Thu Jan 1 00:00:00 1970 Sender: Michael Welling Date: Mon, 22 Feb 2016 11:53:41 -0600 From: Michael Welling Message-ID: <20160222175341.GA22349@deathstar> References: <20160215174121.GA10070@deathstar> <56C2B626.8010804@sigmatek.at> <20160216175837.GC9806@deathstar> <56C56C98.4020501@sigmatek.at> <20160218071030.GA20063@deathstar> <56C57320.8060002@sigmatek.at> <20160218161047.GA10005@deathstar> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160218161047.GA10005@deathstar> Subject: Re: [Xenomai] RT serial cross-link failure List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Wolfgang Netbal Cc: Gilles Chanteperdrix , mwelling79@gmail.com, Jan Kiszka , xenomai@xenomai.org On Thu, Feb 18, 2016 at 10:10:48AM -0600, Michael Welling wrote: > On Thu, Feb 18, 2016 at 08:30:40AM +0100, Wolfgang Netbal wrote: > > > > > > Am 2016-02-18 um 08:10 schrieb Michael Welling: > > >On Thu, Feb 18, 2016 at 08:02:48AM +0100, Wolfgang Netbal wrote: > > >> > > >>Am 2016-02-16 um 18:58 schrieb Michael Welling: > > >>>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 > > >>>> > > >>>>Kind regards > > >>>>Wolfgang > > >>Sorry Michael, > > >> > > >>My patch working for xenomai 2.6.4 file ksrc/drivers/serial/rt_imx_uart.c > > >I am pretty sure that there is another patch applied previous. > > > > > >If you look at your patch you see German comments and open firmware code that > > >is obviously not in the v2.6.4 on the git repository. > > > > > >https://git.xenomai.org/xenomai-2.6.git/tree/ksrc/drivers/serial/rt_imx_uart.c?h=v2.6.4 > > > > > I posted my patch, because I thought that Wolfgang Grandegger the author of > > the driver may check it and include it to the xenomai if it is useable for > > other users. > > > > Yes but the patch does not apply to the driver in the source tree. > Please provide the driver that you have after the patch. Any ideas out there?