[alsa-devel] PATCH - MIDI on ice1724 - real-time kernel problem SOLVED(?)

[Takashi Iwai]

At Mon, 26 May 2008 12:54:32 +0200,
Martin Krüger wrote:
> 
> Pavel Hofman wrote:
> > Martin Krüger wrote:
> >   
> >> Pavel Hofman wrote:
> >>     
> >> Hi, 
> >>
> >> thanks a lot for taking care for that issue. 
> >> I just tried it out by modifying the following files from the 2.6.26-rc3 kernel:
> >>
> >> sound/pci/Kconfig (modified by hand)
> >> sound/pci/ice1712/ice1712.h (modified by hand)
> >> sound/pci/ice1712/envy24ht.h (modified by hand)
> >> sound/pci/ice1712/ice1724.c (copied from the actual Git snapshot)
> >>
> >> I double-checked all the handmade changes, should be ok. 
> >>
> >> Midi in via "amidi -p hw:0 -d" works now without problem, 
> >> but when trying to write to the device, for example by "amidi -p hw:0 -s txdata.syx" 
> >> it causes an immediate crash. 
> >>
> >> That would not be a problem for me, but jackd probes all ports, and is unusable now.
> >>
> >> Perhaps i forgot a patch, is the output working for you? 
> >>     
> >
> > Hello Martin,
> >
> > I did check the MIDI output using command
> >
> > amidi -p hw:0 -S F0411042110C000000000074FF0411042110C000000
> >
> > Ubuntu Studio 7.10, both -generic and -rt kernel, Audiotrak Prodigy 192, 
> > the original patch (I assume the current git version is identical).
> >
> > There was no MIDI device connected to the output as I have none.
> >
> > I traced if MIDI-out on Juli goes through the Xilinx CPLD, and it seemed 
> > the MIDI lines go straight to the connectors, just as on my Prodigy 192. 
> > Unfortunately, I do not have Juli available any more to test the patch.
> >
> > Please could you provide more details about the crash?
> >
> > Thanks,
> >
> > Pavel.
> > _______________________________________________
> > Alsa-devel mailing list
> > Alsa-devel at alsa-project.org
> > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> >   
> Hello Pavel,
> 
> i just compiled a new 2.6.25.4 kernel with realtime support. the kernel 
> is from kernel.org, so without any patches except the realtime patch 
> from the alsa wiki.

To be sure -- does 2.6.25.4 without realtime support work?


Takashi