[linux-audio-user] usb midi

[R Parker]

Hi Clemens,

Just some added information. We connected a Kurzweil
K2000R to the 8x8 port 7 and are able to control
information going to that device. So the routing
aspects are working. It's just the /dev/snd/midiC1D0
file that's not happening.

ron

--- Clemens Ladisch <clemens at ladisch.de> wrote:
> R Parker wrote:
> > I still don't understand where the usb-midi i/o
> device is.
> > ...
> > There's no messages passing through
> /dev/snd/midiC1D0
> 
> This file handles all nine ports. The ALSA library
> uses a magic IOCTL to
> select the desired port; when you access the file
> directly, you get the
> first port only.
> 
> If possible, you should use a program that can
> access MIDI ports via the
> ALSA library (the 8x8's ports would be named
> "hw:1,x", x = 0..8).
> 
> If you want to access other MIDI ports than the
> first with a device file,
> you have to load the snd-virmidi driver, which will
> give you some virtual
> MIDI ports, and to connect these ports to the 8x8's
> ports with aconnect.
> 
> 
> HTH
> Clemens
> 
> 


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